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Environmental Policy for the Restriction on the Use of Plastic Products in Taiwan: Regulatory Measures, Implementation Status and COVID-19’s Impacts on Plastic Products Recycling

Environmental Policy for the Restriction on the Use of Plastic Products in Taiwan: Regulatory... environments Article Environmental Policy for the Restriction on the Use of Plastic Products in Taiwan: Regulatory Measures, Implementation Status and COVID-19’s Impacts on Plastic Products Recycling Wen-Tien Tsai Graduate Institute of Bioresources, National Pingtung University of Science and Technology, Pingtung 912, Taiwan; wttsai@mail.npust.edu.tw; Tel.: +886-8-7703202 Abstract: In response to international trends regarding the reduction in plastic waste (or plastic pollution), this work used the official statistics that were recently released, focusing on regulatory actions restricting the use of plastic products and/or the increase in recycling in Taiwan. In addition, the impacts of the COVID-19 pandemic on plastic waste generation and plastic products’ recycling were also addressed in the present study. The results showed that the plastic compositions in the garbage slightly increased in recent years, suggesting that the effect of restrictions on the use of plastic products in Taiwan was not significant, even though the regulatory measures have been implemented since 2002. However, chlorine contents in the garbage were significantly increased in 2020. The increase could be attributed to the fact that kitchen waste (containing salt), household waste containing disinfectant (e.g., chlorine dioxide, sodium hypochlorite) or PVC-made products were generated more during the COVID-19 pandemic. Furthermore, the data also indicated that the monthly quantities of recycled plastic containers and other plastic products had no significant change since January 2020, especially in the outbreak period from May 2021 to July 2021. Citation: Tsai, W.-T. Environmental Policy for the Restriction on the Use Keywords: plastic waste; plastic products; trend analysis; regulatory measures; restricted consump- of Plastic Products in Taiwan: tion; COVID-19 pandemic Regulatory Measures, Implementation Status and COVID-19’s Impacts on Plastic Products Recycling. Environments 1. Introduction 2022, 9, 7. https://doi.org/10.3390/ Due to their lightweight, hygienic, waterproof, low-cost, durable and aesthetic features, environments9010007 plastic products have played an indispensable role in everyone’s day over the past decades. Academic Editor: Dimitrios Komilis These plastics are mostly made from synthetic resins, including polyethylene terephthalate (PET), high-density/low-density polyethylene (HDPE/LDPE), polyvinyl chloride (PVC), Received: 7 December 2021 polypropylene (PP), polystylene (PS), and expanded polystylene (EPS) [1]. However, an Accepted: 29 December 2021 increase in the use of single-use plastics has led to dramatic environmental pollution, Published: 4 January 2022 especially in the marine environment [2]. Marine debris or microplastic pollution were Publisher’s Note: MDPI stays neutral recently reviewed by scientists in different fields [2–9]. Marine pollution is originally caused with regard to jurisdictional claims in by a variety of plastic products, which are broken down into fine pieces by mechanical and published maps and institutional affil- weathering processes, eventually forming so-called microplastics (MPs). These MPs may iations. have negative effects on aquatic organisms and various species after they are ingested [10]. Therefore, policies or strategies restricting the uses of single-use plastics (e.g., plastic bags, plastic straws) in a circular economy have been adopted by various countries, such as USA, European Union (EU) and Taiwan [11–14]. Furthermore, the United Nations launched the Copyright: © 2022 by the author. Licensee MDPI, Basel, Switzerland. sustainable development goals (SDGs) in 2015 as part of the 2030 Agenda for Sustainable This article is an open access article Development, with a 15-year plan to achieve these goals [15]. The 14th SDGs was to distributed under the terms and “conserve and sustainably use the oceans, seas and marine resources“, as the ocean covers conditions of the Creative Commons nearly three quarters of the Earth’s surface and contains about 97% of the Earth’s water. On Attribution (CC BY) license (https:// World Environment Day 2018, the United Nations Industrial Development Organization creativecommons.org/licenses/by/ (UNIDO) addressed the theme of “Beat plastic pollution”, which aimed to reduce the 4.0/). Environments 2022, 9, 7. https://doi.org/10.3390/environments9010007 https://www.mdpi.com/journal/environments Environments 2022, 9, 7 2 of 10 negative effects of plastic waste (or plastic pollution) on people’s health and wildlife by taking actions restricting the use of plastic products and/or encouraging their recycling [16]. In line with international policies for the reduction in plastic waste and the restric- tion on the uses of single-use plastics, the central competent authority in Taiwan (i.e., Environmental Protection Administration (EPA)) initially promulgated the reduction and recycling system of regulated recyclable waste (e.g., plastic containers) from municipal solid waste (MSW) based on the Waste Management Act (WMA) [14]. Table 1 summarizes the regulatory policies for recycling resources from MSW since 1997. The 4-in-1 Recycling Program covered the public community, local authorities (cleaning teams), recycling enter- prises, and recycling fund [17]. Under the extended producer responsibility (EPR) principle, the product manufacturers and importers funded the program, which then subsidizes collection and recycling by licensed enterprises. Citizens must classify their household waste into the recyclable, non-recyclable, and organic (food) waste items. The program also encourages them to recycle because it only allows non-recyclables in the special plastic bags. Citizens in Taipei city (Taiwan) must purchase these bags; the bigger the bag, the greater the price. The statistical database by the EPA [18] showed that the overall recycling rate was increased from 5.8% in 2000 to 58.9% in 2020. However, plastics in the non-recyclable garbage still contributed to 15–20% of the weight, showing that plastic products, including single-use plastics, were still overused by the public in Taiwan. Therefore, the Taiwan EPA has restricted the use of plastic bags since 2006 and has continued to announce more restrictions on the use of plastic products, under the authorization of the WMA [14]. Table 1. Main policies for recycling resources from municipal solid waste (MSW) in Taiwan. Implementation Year Main Policies Comments Extended producer responsibility (EPR) 1988 Incorporated into the Waste Management Act (WMA) incorporated A special feedback mechanism covers the public community, local authorities (cleaning teams), recycling 1997 4-in-1 Recycling Program announced enterprises, and recycling fund. The fees are collected from responsible manufacturers and importers. 2000 Trash collection fee per bag Only implemented in Taipei city 2001 Food waste (kitchen waste) recycling Mainly reused as pig feed and organic compost Bulk waste mainly includes discarded furniture, which 2003 Bulk waste recycling may still be reused after minor repairs. MSW must be sorted into garbage (general waste), food 2005 Compulsory MSW sorting waste, recyclable waste and bulk waste. Sustainable material management (SMM) Using the cradle-to-cradle principle by life cycle introduced assessment and material flow analysis Focusing on waste-to-energy promotion and food 2017 Diversified MSW Treatment Program waste-to-biopower Although the regulatory measures for plastic waste reduction and recycling and the discussions regarding COVID-19’s impact on plastic waste have been addressed in the previous study [14], updated data had not yet been provided to support the expected increase in the generation of plastic waste. With the official statistics that were recently released [19], this paper focuses on three important themes. First, the regulatory measures and policies restricting the use of plastic products were reviewed. Subsequently, the implementation results of restrictions on the use of plastic products were addressed to verify the effectiveness of these regulatory measures. Finally, the impacts of the COVID-19 pandemic on restrictions on the use of plastic products were discussed, to ensure that they were in accordance with the increase in recycled plastic waste and the plastic containers. Environments 2022, 8, x FOR PEER REVIEW 3 of 10 addressed to verify the effectiveness of these regulatory measures. Finally, the impacts of the COVID-19 pandemic on restrictions on the use of plastic products were discussed, to ensure that they were in accordance with the increase in recycled plastic waste and the Environments 2022, 9, 7 3 of 10 plastic containers. 2. Data Mining and Methodology 2. Data Mining and Methodology As mentioned above, the main purposes of this study were to address the updated As mentioned above, the main purposes of this study were to address the updated status of regulatory measures restricting the use of plastic products and the results of status of regulatory measures restricting the use of plastic products and the results of their implementation, and also analyze the impacts of COVID-19 on this policy. There- their implementation, and also analyze the impacts of COVID-19 on this policy. Therefore, fore, regulatory measures and statistical database relevant to the restriction of the use of regulatory measures and statistical database relevant to the restriction of the use of plastic plastic products in Taiwan were based on the following: products in Taiwan were based on the following: • Regulatory measures and policies for the restriction on the use of plastic products. Regulatory measures and policies for the restriction on the use of plastic products. Regarding the restrictions on the use of plastic products, the regulations were ac- Regarding the restrictions on the use of plastic products, the regulations were accessed cessed on the official website [20]. In addition, the environmental policies for this issue or on the official website [20]. In addition, the environmental policies for this issue or ma- marine waste control strategies were obtained from the EPA website to echo the regula- rine waste control strategies were obtained from the EPA website to echo the regulatory tory measures [21,22]. measures [21,22]. • Implementation status of restrictions on the use of plastic products. Implementation status of restrictions on the use of plastic products. In order to review the implementation status of restrictions on the use of plastic In order to review the implementation status of restrictions on the use of plastic products in Taiwan, the updated data for the recycled plastic containers and other plastic products in Taiwan, the updated data for the recycled plastic containers and other plastic products were extracted from the official yearbook [18] and the Solid Waste Statistics products were extracted from the official yearbook [18] and the Solid Waste Statistics (EPA, (EPA, Taiwan) [19]. In addition, the garbage composition by chlorine in recent years Taiwan) [19]. In addition, the garbage composition by chlorine in recent years (2016–2020) (2016–2020) was further analyzed to observe the variations during the COVID-19 pan- was further analyzed to observe the variations during the COVID-19 pandemic. demic. Impacts of COVID-19 pandemic on plastic products’ recycling. • Impacts of COVID-19 pandemic on plastic products' recycling. Figure 1 showed the data on the daily confirmed COVID-19 cases during the period of Figure 1 showed the data on the daily confirmed COVID-19 cases during the period January 2020–October 2021 [23], indicating a significant increase in epidemic alerts since of January 2020–October 2021 [23], indicating a significant increase in epidemic alerts May 2021. To analyze the impacts that the COVID-19 pandemic had on the restrictions since May 2021. To analyze the impacts that the COVID-19 pandemic had on the re- on the use of plastic products and their recycling, the monthly variations in the plastic strictions on the use of plastic products and their recycling, the monthly variations in the containers and other plastics recycled by the agencies from January 2020 to July 2021 were plastic containers and other plastics recycled by the agencies from January 2020 to July used in this work [18,23]. 2021 were used in this work [18,23]. Figure 1. 7-day average confirmed COVID-19 cases in Taiwan [23]. Figure 1. 7-day average confirmed COVID-19 cases in Taiwan [23]. 3. Results and Discussion 3.1. Regulatory Measures and Plans for Restriction on the Use of Plastic Products In Taiwan, the legal framework for the restrictions on the use of plastic products was authorized by the WMA and the Resource Recycling Act (RRA) [20,22]. According to Article 21 of the WMA, the central competent authority (i.e., EPA) may officially prohibit the use of, or announce restrictions on, the manufacturing, import, sales and use of those articles, packaging and containers, due to concerns regarding serious environmental pollution. In the RRA, the Article 13 empowers the EPA to announce and designate the restriction Environments 2022, 9, 7 4 of 10 of or reduction in the use of goods, packaging, or containers. In order to reduce the generation of plastic waste and respond to international environmental issues in recent years, such as SDGs [15] and marine pollution [16], the EPA completely revised the WMA in October 2001, thus forming the legal principle for restrictions on the use of plastic products. Prior to the promulgation of the relevant regulations restricting the use of plastic products, the EPA announced the policy for the restriction on the uses of plastic shopping bags and plastic disposable dishes in May 2002, with two implementation stages. The first stage targeted the shops (or stores) of government agencies, schools, hospitals, state- owned enterprises and military organizations, which were required to restrict the use of plastic shopping bags and plastic disposable dishes after 1 July 2002 and 1 October 2002, respectively. The second stage, implemented on 1 January 2003, expanded the targeted shops (or stores) of the following businesses: department stores, wholesaler/retailers (mega stores), franchised supermarkets, convenience stores, fast food franchises (chains), and other food and beverage establishments (not including street vendors and food stalls). With the implementation of the “pilot” policy of restrictions on the use of commonly used plastic products during the period of 2003–2005, the EPA analyzed the positive results of plastic waste reduction and conducted a usage audit, and formally promulgated the relevant regulations since 2006. As summarized in Table 2, the EPA announced the relevant regulations restricting the use of plastic products, which were described in the previous study [14]. Table 2. Major regulations governing the restrictions on the use of plastic products in Taiwan. Lastest Revision Regulation Announcement Date Announcement Date Effective Day Plastic Shopping Bag Restriction 1 January 2018 Targets, Implementation, and Date 9 June 2006 15 August 2017 (Penalty since 1 January 2019) of Implementation Plastic Disposable Tableware Restriction Targets, Implementation, 9 June 2006 8 August 2019 8 August 2019 and Date of Implementation Restriction on the Use of Plastic 28 March 2007 23 December 2011 1 January 2012 Pallets and Packaging Boxes Ban on Manufacturing, Import, and 1 January 2018 Sale for Cosmetics and Personal (Ban on Manufacturing, Import) 3 August 2017 – Care Products Containing Plastic 1 July 2018 Microbeads (Ban on sale) Single-Use Plastic Straw Restriction 1 July 2019 8 May 2019 – Targets and Implementation (Penalty since 1 July 2020) Not available. In response to the Goal 14 in the SDGs, the “Taiwan Marine Debris Management Platform” was jointly set up by the EPA and civil organizations in July 2017. The Plan (“Taiwan Marine Debris Governance Action”) contained the following actions [21]: 1. Source reduction: - Strategy 1: Regulatory implementation restricting the use of plastic products (as summarized in Table 2). - Strategy 2: Extended producer responsibilities for corporations under the princi- ples of zero-waste and the circular economy. 2. Prevention and removal: - Strategy 1: Effective removal of floating wastes in hotspots (i.e., harbors, ports) using special machinery or workforces. Environments 2022, 9, 7 5 of 10 - Strategy 2: Stopping waste (floating wastes on the rivers or streams) from enter- ing oceans. - Strategy 3: Education and promotion of public participation of coordinating civic organizations, the adopting organizations or bodies, and city- and county- cleaning units. 3. Research and investigation: - Strategy 1: Understanding coastal and marine pollution in Taiwan via research and monitoring, including the impacts marine waste has on living organisms, the ecosystem, human societies and the economy. - Strategy 2: Education and promotion of public participation in marine waste monitoring and cleaning. 4. Expansion of collaboration and participation: - Strategy 1: Expansion and strengthening of multilateral collaboration with South- east Asia on marine waste issues. - Strategy 2: Expansion of public awareness and social concerns through environ- mental education programs. 3.2. Implementation Results of Restriction on the Use of Plastic Products Since the 1990s, Taiwan has become one of the major regions for the manufacture of plastic products around the world, as plastics were encouraged to reduce costs and the risk of certain diseases (e.g., hepatitis) spreading. As described in Section 3.1, the Taiwanese government introduced a plastic bag levy has been in place from in 2002, thus reducing plastic bag use by more than 59% [24]. Taiwan developed its recycling industry into a successful circular economy model using the 4-in-1 Recycling Program in 1997 [14,25]. Figure 2 shows the variations in the generated MSW and its type in Taiwan in recent years (2018–2020). Herein, the waste generated by employees in these industries has been incorporated into MSW since 2018, thus indicating a significant increase, from 7871 thousand metric tons in 2017 to 9741 thousand metric tons in 2018 [18]. An increase was also shown in recyclable waste, including a variety of containers, such as metal, glass, Teltra Pak, paper, and plastics. Table 3 summarizes the reported amounts of plastic containers and other plastic products recycled by implementing agencies in Taiwan since 2016, indicating an increasing trend that was unaffected by the COVID-19 pandemic. However, the compositions of plastics in the garbage showed a slight increase in recent years, as seen in Table 4 and shown in Figure 3. The reasons for this change could be attributed to the decline in the recycling of plastic products and “Diversified MSW Treatment Program” promoting waste-to-power. In this regard, the restrictions on the use of plastic products in Taiwan was not significant, even though regulatory measures have been implemented for 15 years. Figure 3 additionally indicated a significant increase in chlorine content in 2020, reflecting that kitchen waste (containing salt), household waste containing disinfectant (e.g., chlorine dioxide, sodium hypochlorite) or PVC-made products were generated during the COVID-19 pandemic. Therefore, some toxic compounds, such as dioxins, may be released in greater amounts from MSW incineration plants [2]. Environments 2022, 8, x FOR PEER REVIEW 6 of 10 Environments 2022, 9, 7 6 of 10 toxic compounds, such as dioxins, may be released in greater amounts from MSW in- cineration plants [2]. Environments 2022, 8, x FOR PEER REVIEW 7 of 10 Figure 2. Variations in the generated amounts of MSW and their type in Taiwan since 2018 [18]. Figure 2. Variations in the generated amounts of MSW and their type in Taiwan since 2018 [18]. Table 3. Reported amounts of plastic containers and other plastic products recycled by imple- menting agencies in Taiwan since 2016 . Year Plastic Containers Other Plastic Products 2016 262,972 57,060 2017 301,926 82,271 2018 367,741 95,872 2019 413,992 110,738 2020 459,802 140,980 First half of 2020 215,279 67,320 Second half of 2020 244,523 73,660 First half of 2021 223,670 70,514 Source [18,19]; unit: metric ton. Table 4. Reported amounts of garbage (general waste) generation, proximate analysis and compo- sition by plastics in Taiwan since 2018 . Garbage Generation Proximate Analysis (wt%) Composition by Plastics Figure 3. Variations in garbage compositions by plastics and elemental chlorine during the period Figure 3. Variations in garbage compositions by plastics and elemental chlorine during the period of Year of 2009–2020 [18]. (Metric Ton) Moisture Ash Combustibles (wt%) 2009–2020 [18]. 2016 3,133,582 52.91 6.28 40.81 16.61 3.3. Impacts of C Table OVID- 3. Reported 19 Pandemi amou c on nts Pl of asti plastic c Procontainers ducts Recycl and inother g plastic products recycled by implementing 2017 3,130,735 52.60 6.07 41.33 16.00 agencies in Taiwan since 2016 . The regulatory lockdown measures resulting from the COVID-19 pandemic may 2018 4,317,339 50.77 6.12 43.10 17.79 have had huge impacts on environmental issues, including air quality and waste man- 2019 4,290,856 48.49 6.63 44.88 18.67 Year Plastic Containers Other Plastic Products agement [26–31]. Regarding the impacts of COVID-19 event on plastic waste manage- 2020 4,062,029 45.34 9.27 45.40 20.20 2016 262,972 57,060 ment, there was an increased generation of plastic waste caused by the excessive con- 1 2 Source [18]. Wet basis. 2017 301,926 82,271 sumption of single-use plastics due to the need for temporary relief and plastic-wrapped 2018 367,741 95,872 articles (e.g., disinfectants and spray bottles) during the pandemic [32–37]. In addition, 2019 413,992 110,738 the most common materials reused in face masks include non-woven fibrous plastics 2020 459,802 140,980 such as polypropylene First (PP) [38 half of 2020 ], also causing the increa 215,279 se in plastics or plastic wa 67,320 ste Second half of 2020 244,523 73,660 during the COVID-9 pandemic. First half of 2021 223,670 70,514 In early 2020, Taiwan started to implement proactive measures against the Source [18,19]; unit: metric ton. COVID-19 pandemic. As shown in Figure 1, the profile of confirmed COVID-19 cases indicated a successful epidemic prevention by the use of regulatory measures (e.g., con- tact-tracing, testing, face-masking, social distancing, and quarantine) and innovative in- formation technology, which jointly worked with the National Health Insurance (NHI) system and the National Central Epidemic Command Center (CECC). Although the CECC announced Alert Level 2 before April 2021, during the pandemic, Taiwan’s eco- nomic and daily living activities continued as usual, with overseas Taiwanese returning to the island. This smooth situation came to an end in mid-May 2021 when an outbreak of COVID-19 transmission has broken out everyday life for about two months. As the CECC raised the national epidemic alert to the Level 3 on 19 May 2021, the COVID-19 confirmed cases significantly fell from August 2021 to October 2021. New cases per day fell from 535 on 17 May 2021 to an average of fewer than 3 in October 2021. In response to the COVID-19 outbreak in May 2021, the Taiwan EPA allowed regulated enterprises to apply to local competent authorities for exemptions from the prohibition on the use of disposable plastic tableware. Once approved, they were allowed to use disposable ta- bleware made of materials other than plastics for up to 90 days. Concerning the impact of the COVID-19 outbreak on the amounts of plastic containers and other plastic products that were recycled, Figure 4 depicted the monthly variations in plastic containers and other plastic products that were recycled by the implementing agencies from January 2020 to July 2021. The results showed that there was no significant change in the quanti- ties of recycled plastic containers and other plastic products since January 2020, espe- cially in the outbreak period from May 2021 to July 2021. Environments 2022, 9, 7 7 of 10 Table 4. Reported amounts of garbage (general waste) generation, proximate analysis and composi- tion by plastics in Taiwan since 2018 . Proximate Analysis (wt%) Garbage Generation Composition by Year (Metric Ton) Plastics (wt%) Moisture Ash Combustibles 2016 3,133,582 52.91 6.28 40.81 16.61 2017 3,130,735 52.60 6.07 41.33 16.00 2018 4,317,339 50.77 6.12 43.10 17.79 2019 4,290,856 48.49 6.63 44.88 18.67 2020 4,062,029 45.34 9.27 45.40 20.20 1 2 Source [18]. Wet basis. 3.3. Impacts of COVID-19 Pandemic on Plastic Products Recycling The regulatory lockdown measures resulting from the COVID-19 pandemic may have had huge impacts on environmental issues, including air quality and waste manage- ment [26–31]. Regarding the impacts of COVID-19 event on plastic waste management, there was an increased generation of plastic waste caused by the excessive consump- tion of single-use plastics due to the need for temporary relief and plastic-wrapped arti- cles (e.g., disinfectants and spray bottles) during the pandemic [32–37]. In addition, the most common materials reused in face masks include non-woven fibrous plastics such as polypropylene (PP) [38], also causing the increase in plastics or plastic waste during the COVID-9 pandemic. In early 2020, Taiwan started to implement proactive measures against the COVID-19 pandemic. As shown in Figure 1, the profile of confirmed COVID-19 cases indicated a suc- cessful epidemic prevention by the use of regulatory measures (e.g., contact-tracing, testing, face-masking, social distancing, and quarantine) and innovative information technology, which jointly worked with the National Health Insurance (NHI) system and the National Central Epidemic Command Center (CECC). Although the CECC announced Alert Level 2 before April 2021, during the pandemic, Taiwan’s economic and daily living activities continued as usual, with overseas Taiwanese returning to the island. This smooth situation came to an end in mid-May 2021 when an outbreak of COVID-19 transmission has broken out everyday life for about two months. As the CECC raised the national epidemic alert to the Level 3 on 19 May 2021, the COVID-19 confirmed cases significantly fell from August 2021 to October 2021. New cases per day fell from 535 on 17 May 2021 to an average of fewer than 3 in October 2021. In response to the COVID-19 outbreak in May 2021, the Taiwan EPA allowed regulated enterprises to apply to local competent authorities for exemptions from the prohibition on the use of disposable plastic tableware. Once approved, they were allowed to use disposable tableware made of materials other than plastics for up to 90 days. Concerning the impact of the COVID-19 outbreak on the amounts of plastic containers and other plastic products that were recycled, Figure 4 depicted the monthly variations in plastic containers and other plastic products that were recycled by the implementing agencies from January 2020 to July 2021. The results showed that there was no significant change in the quantities of recycled plastic containers and other plastic products since January 2020, especially in the outbreak period from May 2021 to July 2021. Environments 2022, 9, 7 8 of 10 Environments 2022, 8, x FOR PEER REVIEW 8 of 10 Figure 4. Monthly variations in plastic containers and other plastic products recycled by Figure 4. Monthly variations in plastic containers and other plastic products recycled by implement- implementing agencies from January 2020 to July 2021 [19]. ing agencies from January 2020 to July 2021 [19]. 4. Conclusions 4. Conclusions This work may be the first study on the impacts of the COVID-19 pandemic on This work may be the first study on the impacts of the COVID-19 pandemic on plastic plastic waste generation and plastic products’ recycling in Taiwan during the period of waste generation and plastic products’ recycling in Taiwan during the period of 2020–2021 2020–2021 (u (up p to toJu July). ly). Based on the off Based on the ofificial cial sta statistics tistics by the Ta by the Taiwan iwan EPA, the EPA, the reported reported amounts of amounts of p plastic lastic cont containers ainers and andother other p plastic lastipr c products tha oducts that wer t were e recycled recycled by imple- by implementing agencies indicated an increasing trend and were unaffected by the COVID-19 pandemic in 2020. menting agencies indicated an increasing trend and were unaffected by the COVID-19 pandemic inHowever 2020. Howev , the e amount r, the am ofount of plastics pin lasti the cs i garbage n the ga showed rbage showed a slight a incr slight i ease in n- recent years crease in recent (2017–2020), years (201 suggesting 7–2020), suggesti that restrictions ng that on restri the use ctions of plastic on the pruse of oducts p inlasti Taiwan c were not significant, even though these regulatory measures have been implemented since 2002. products in Taiwan were not significant, even though these regulatory measures have On the other hand, the chlorine content in the garbage showed a significant increase in been implemented since 2002. On the other hand, the chlorine content in the garbage 2020. The increase could be attributable to the fact that kitchen waste (containing salt), showed a significant increase in 2020. The increase could be attributable to the fact that household waste containing disinfectants (e.g., chlorine dioxide, sodium hypochlorite, kitchen waste (containing salt), household waste containing disinfectants (e.g., chlorine or other chlorine-containing disinfectants) or PVC-made products were generated more dioxide, sodium hypochlorite, or other chlorine-containing disinfectants) or PVC-made during the COVID-19 pandemic. Furthermore, the data also showed that the quantities of products were generated more during the COVID-19 pandemic. Furthermore, the data recycled plastic containers and other plastic products showed no significant change since also showed that the quantities of recycled plastic containers and other plastic products January 2020, especially in the outbreak period from May 2021 to July 2021. Concerning the showed no significant change since January 2020, especially in the outbreak period from goal of zero plastic waste being achieved by 2030, the reduction rates of regulated plastic May 2021 to July 2021. Concerning the goal of zero plastic waste being achieved by 2030, containers or single-use plastic products in Taiwan should be enhanced by the adoption of the reduction rates of regulated plastic containers or single-use plastic products in Tai- more compulsory measures against plastic pollution using relevant laws, such as a ban on wan should be enhanced by the adoption of more compulsory measures against plastic the use of certain single-use plastic products. pollution using relevant laws, such as a ban on the use of certain single-use plastic products. Funding: This research received no external funding. Funding: This research received no external funding. Institutional Review Board Statement: Not applicable. Institutional Review Board Statement: Not applicable. 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Environmental Policy for the Restriction on the Use of Plastic Products in Taiwan: Regulatory Measures, Implementation Status and COVID-19’s Impacts on Plastic Products Recycling

Tsai, Wen-Tien
Environments , Volume 9 (1) – Jan 4, 2022
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10.3390/environments9010007
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environments Article Environmental Policy for the Restriction on the Use of Plastic Products in Taiwan: Regulatory Measures, Implementation Status and COVID-19’s Impacts on Plastic Products Recycling Wen-Tien Tsai Graduate Institute of Bioresources, National Pingtung University of Science and Technology, Pingtung 912, Taiwan; wttsai@mail.npust.edu.tw; Tel.: +886-8-7703202 Abstract: In response to international trends regarding the reduction in plastic waste (or plastic pollution), this work used the official statistics that were recently released, focusing on regulatory actions restricting the use of plastic products and/or the increase in recycling in Taiwan. In addition, the impacts of the COVID-19 pandemic on plastic waste generation and plastic products’ recycling were also addressed in the present study. The results showed that the plastic compositions in the garbage slightly increased in recent years, suggesting that the effect of restrictions on the use of plastic products in Taiwan was not significant, even though the regulatory measures have been implemented since 2002. However, chlorine contents in the garbage were significantly increased in 2020. The increase could be attributed to the fact that kitchen waste (containing salt), household waste containing disinfectant (e.g., chlorine dioxide, sodium hypochlorite) or PVC-made products were generated more during the COVID-19 pandemic. Furthermore, the data also indicated that the monthly quantities of recycled plastic containers and other plastic products had no significant change since January 2020, especially in the outbreak period from May 2021 to July 2021. Citation: Tsai, W.-T. Environmental Policy for the Restriction on the Use Keywords: plastic waste; plastic products; trend analysis; regulatory measures; restricted consump- of Plastic Products in Taiwan: tion; COVID-19 pandemic Regulatory Measures, Implementation Status and COVID-19’s Impacts on Plastic Products Recycling. Environments 1. Introduction 2022, 9, 7. https://doi.org/10.3390/ Due to their lightweight, hygienic, waterproof, low-cost, durable and aesthetic features, environments9010007 plastic products have played an indispensable role in everyone’s day over the past decades. Academic Editor: Dimitrios Komilis These plastics are mostly made from synthetic resins, including polyethylene terephthalate (PET), high-density/low-density polyethylene (HDPE/LDPE), polyvinyl chloride (PVC), Received: 7 December 2021 polypropylene (PP), polystylene (PS), and expanded polystylene (EPS) [1]. However, an Accepted: 29 December 2021 increase in the use of single-use plastics has led to dramatic environmental pollution, Published: 4 January 2022 especially in the marine environment [2]. Marine debris or microplastic pollution were Publisher’s Note: MDPI stays neutral recently reviewed by scientists in different fields [2–9]. Marine pollution is originally caused with regard to jurisdictional claims in by a variety of plastic products, which are broken down into fine pieces by mechanical and published maps and institutional affil- weathering processes, eventually forming so-called microplastics (MPs). These MPs may iations. have negative effects on aquatic organisms and various species after they are ingested [10]. Therefore, policies or strategies restricting the uses of single-use plastics (e.g., plastic bags, plastic straws) in a circular economy have been adopted by various countries, such as USA, European Union (EU) and Taiwan [11–14]. Furthermore, the United Nations launched the Copyright: © 2022 by the author. Licensee MDPI, Basel, Switzerland. sustainable development goals (SDGs) in 2015 as part of the 2030 Agenda for Sustainable This article is an open access article Development, with a 15-year plan to achieve these goals [15]. The 14th SDGs was to distributed under the terms and “conserve and sustainably use the oceans, seas and marine resources“, as the ocean covers conditions of the Creative Commons nearly three quarters of the Earth’s surface and contains about 97% of the Earth’s water. On Attribution (CC BY) license (https:// World Environment Day 2018, the United Nations Industrial Development Organization creativecommons.org/licenses/by/ (UNIDO) addressed the theme of “Beat plastic pollution”, which aimed to reduce the 4.0/). Environments 2022, 9, 7. https://doi.org/10.3390/environments9010007 https://www.mdpi.com/journal/environments Environments 2022, 9, 7 2 of 10 negative effects of plastic waste (or plastic pollution) on people’s health and wildlife by taking actions restricting the use of plastic products and/or encouraging their recycling [16]. In line with international policies for the reduction in plastic waste and the restric- tion on the uses of single-use plastics, the central competent authority in Taiwan (i.e., Environmental Protection Administration (EPA)) initially promulgated the reduction and recycling system of regulated recyclable waste (e.g., plastic containers) from municipal solid waste (MSW) based on the Waste Management Act (WMA) [14]. Table 1 summarizes the regulatory policies for recycling resources from MSW since 1997. The 4-in-1 Recycling Program covered the public community, local authorities (cleaning teams), recycling enter- prises, and recycling fund [17]. Under the extended producer responsibility (EPR) principle, the product manufacturers and importers funded the program, which then subsidizes collection and recycling by licensed enterprises. Citizens must classify their household waste into the recyclable, non-recyclable, and organic (food) waste items. The program also encourages them to recycle because it only allows non-recyclables in the special plastic bags. Citizens in Taipei city (Taiwan) must purchase these bags; the bigger the bag, the greater the price. The statistical database by the EPA [18] showed that the overall recycling rate was increased from 5.8% in 2000 to 58.9% in 2020. However, plastics in the non-recyclable garbage still contributed to 15–20% of the weight, showing that plastic products, including single-use plastics, were still overused by the public in Taiwan. Therefore, the Taiwan EPA has restricted the use of plastic bags since 2006 and has continued to announce more restrictions on the use of plastic products, under the authorization of the WMA [14]. Table 1. Main policies for recycling resources from municipal solid waste (MSW) in Taiwan. Implementation Year Main Policies Comments Extended producer responsibility (EPR) 1988 Incorporated into the Waste Management Act (WMA) incorporated A special feedback mechanism covers the public community, local authorities (cleaning teams), recycling 1997 4-in-1 Recycling Program announced enterprises, and recycling fund. The fees are collected from responsible manufacturers and importers. 2000 Trash collection fee per bag Only implemented in Taipei city 2001 Food waste (kitchen waste) recycling Mainly reused as pig feed and organic compost Bulk waste mainly includes discarded furniture, which 2003 Bulk waste recycling may still be reused after minor repairs. MSW must be sorted into garbage (general waste), food 2005 Compulsory MSW sorting waste, recyclable waste and bulk waste. Sustainable material management (SMM) Using the cradle-to-cradle principle by life cycle introduced assessment and material flow analysis Focusing on waste-to-energy promotion and food 2017 Diversified MSW Treatment Program waste-to-biopower Although the regulatory measures for plastic waste reduction and recycling and the discussions regarding COVID-19’s impact on plastic waste have been addressed in the previous study [14], updated data had not yet been provided to support the expected increase in the generation of plastic waste. With the official statistics that were recently released [19], this paper focuses on three important themes. First, the regulatory measures and policies restricting the use of plastic products were reviewed. Subsequently, the implementation results of restrictions on the use of plastic products were addressed to verify the effectiveness of these regulatory measures. Finally, the impacts of the COVID-19 pandemic on restrictions on the use of plastic products were discussed, to ensure that they were in accordance with the increase in recycled plastic waste and the plastic containers. Environments 2022, 8, x FOR PEER REVIEW 3 of 10 addressed to verify the effectiveness of these regulatory measures. Finally, the impacts of the COVID-19 pandemic on restrictions on the use of plastic products were discussed, to ensure that they were in accordance with the increase in recycled plastic waste and the Environments 2022, 9, 7 3 of 10 plastic containers. 2. Data Mining and Methodology 2. Data Mining and Methodology As mentioned above, the main purposes of this study were to address the updated As mentioned above, the main purposes of this study were to address the updated status of regulatory measures restricting the use of plastic products and the results of status of regulatory measures restricting the use of plastic products and the results of their implementation, and also analyze the impacts of COVID-19 on this policy. There- their implementation, and also analyze the impacts of COVID-19 on this policy. Therefore, fore, regulatory measures and statistical database relevant to the restriction of the use of regulatory measures and statistical database relevant to the restriction of the use of plastic plastic products in Taiwan were based on the following: products in Taiwan were based on the following: • Regulatory measures and policies for the restriction on the use of plastic products. Regulatory measures and policies for the restriction on the use of plastic products. Regarding the restrictions on the use of plastic products, the regulations were ac- Regarding the restrictions on the use of plastic products, the regulations were accessed cessed on the official website [20]. In addition, the environmental policies for this issue or on the official website [20]. In addition, the environmental policies for this issue or ma- marine waste control strategies were obtained from the EPA website to echo the regula- rine waste control strategies were obtained from the EPA website to echo the regulatory tory measures [21,22]. measures [21,22]. • Implementation status of restrictions on the use of plastic products. Implementation status of restrictions on the use of plastic products. In order to review the implementation status of restrictions on the use of plastic In order to review the implementation status of restrictions on the use of plastic products in Taiwan, the updated data for the recycled plastic containers and other plastic products in Taiwan, the updated data for the recycled plastic containers and other plastic products were extracted from the official yearbook [18] and the Solid Waste Statistics products were extracted from the official yearbook [18] and the Solid Waste Statistics (EPA, (EPA, Taiwan) [19]. In addition, the garbage composition by chlorine in recent years Taiwan) [19]. In addition, the garbage composition by chlorine in recent years (2016–2020) (2016–2020) was further analyzed to observe the variations during the COVID-19 pan- was further analyzed to observe the variations during the COVID-19 pandemic. demic. Impacts of COVID-19 pandemic on plastic products’ recycling. • Impacts of COVID-19 pandemic on plastic products' recycling. Figure 1 showed the data on the daily confirmed COVID-19 cases during the period of Figure 1 showed the data on the daily confirmed COVID-19 cases during the period January 2020–October 2021 [23], indicating a significant increase in epidemic alerts since of January 2020–October 2021 [23], indicating a significant increase in epidemic alerts May 2021. To analyze the impacts that the COVID-19 pandemic had on the restrictions since May 2021. To analyze the impacts that the COVID-19 pandemic had on the re- on the use of plastic products and their recycling, the monthly variations in the plastic strictions on the use of plastic products and their recycling, the monthly variations in the containers and other plastics recycled by the agencies from January 2020 to July 2021 were plastic containers and other plastics recycled by the agencies from January 2020 to July used in this work [18,23]. 2021 were used in this work [18,23]. Figure 1. 7-day average confirmed COVID-19 cases in Taiwan [23]. Figure 1. 7-day average confirmed COVID-19 cases in Taiwan [23]. 3. Results and Discussion 3.1. Regulatory Measures and Plans for Restriction on the Use of Plastic Products In Taiwan, the legal framework for the restrictions on the use of plastic products was authorized by the WMA and the Resource Recycling Act (RRA) [20,22]. According to Article 21 of the WMA, the central competent authority (i.e., EPA) may officially prohibit the use of, or announce restrictions on, the manufacturing, import, sales and use of those articles, packaging and containers, due to concerns regarding serious environmental pollution. In the RRA, the Article 13 empowers the EPA to announce and designate the restriction Environments 2022, 9, 7 4 of 10 of or reduction in the use of goods, packaging, or containers. In order to reduce the generation of plastic waste and respond to international environmental issues in recent years, such as SDGs [15] and marine pollution [16], the EPA completely revised the WMA in October 2001, thus forming the legal principle for restrictions on the use of plastic products. Prior to the promulgation of the relevant regulations restricting the use of plastic products, the EPA announced the policy for the restriction on the uses of plastic shopping bags and plastic disposable dishes in May 2002, with two implementation stages. The first stage targeted the shops (or stores) of government agencies, schools, hospitals, state- owned enterprises and military organizations, which were required to restrict the use of plastic shopping bags and plastic disposable dishes after 1 July 2002 and 1 October 2002, respectively. The second stage, implemented on 1 January 2003, expanded the targeted shops (or stores) of the following businesses: department stores, wholesaler/retailers (mega stores), franchised supermarkets, convenience stores, fast food franchises (chains), and other food and beverage establishments (not including street vendors and food stalls). With the implementation of the “pilot” policy of restrictions on the use of commonly used plastic products during the period of 2003–2005, the EPA analyzed the positive results of plastic waste reduction and conducted a usage audit, and formally promulgated the relevant regulations since 2006. As summarized in Table 2, the EPA announced the relevant regulations restricting the use of plastic products, which were described in the previous study [14]. Table 2. Major regulations governing the restrictions on the use of plastic products in Taiwan. Lastest Revision Regulation Announcement Date Announcement Date Effective Day Plastic Shopping Bag Restriction 1 January 2018 Targets, Implementation, and Date 9 June 2006 15 August 2017 (Penalty since 1 January 2019) of Implementation Plastic Disposable Tableware Restriction Targets, Implementation, 9 June 2006 8 August 2019 8 August 2019 and Date of Implementation Restriction on the Use of Plastic 28 March 2007 23 December 2011 1 January 2012 Pallets and Packaging Boxes Ban on Manufacturing, Import, and 1 January 2018 Sale for Cosmetics and Personal (Ban on Manufacturing, Import) 3 August 2017 – Care Products Containing Plastic 1 July 2018 Microbeads (Ban on sale) Single-Use Plastic Straw Restriction 1 July 2019 8 May 2019 – Targets and Implementation (Penalty since 1 July 2020) Not available. In response to the Goal 14 in the SDGs, the “Taiwan Marine Debris Management Platform” was jointly set up by the EPA and civil organizations in July 2017. The Plan (“Taiwan Marine Debris Governance Action”) contained the following actions [21]: 1. Source reduction: - Strategy 1: Regulatory implementation restricting the use of plastic products (as summarized in Table 2). - Strategy 2: Extended producer responsibilities for corporations under the princi- ples of zero-waste and the circular economy. 2. Prevention and removal: - Strategy 1: Effective removal of floating wastes in hotspots (i.e., harbors, ports) using special machinery or workforces. Environments 2022, 9, 7 5 of 10 - Strategy 2: Stopping waste (floating wastes on the rivers or streams) from enter- ing oceans. - Strategy 3: Education and promotion of public participation of coordinating civic organizations, the adopting organizations or bodies, and city- and county- cleaning units. 3. Research and investigation: - Strategy 1: Understanding coastal and marine pollution in Taiwan via research and monitoring, including the impacts marine waste has on living organisms, the ecosystem, human societies and the economy. - Strategy 2: Education and promotion of public participation in marine waste monitoring and cleaning. 4. Expansion of collaboration and participation: - Strategy 1: Expansion and strengthening of multilateral collaboration with South- east Asia on marine waste issues. - Strategy 2: Expansion of public awareness and social concerns through environ- mental education programs. 3.2. Implementation Results of Restriction on the Use of Plastic Products Since the 1990s, Taiwan has become one of the major regions for the manufacture of plastic products around the world, as plastics were encouraged to reduce costs and the risk of certain diseases (e.g., hepatitis) spreading. As described in Section 3.1, the Taiwanese government introduced a plastic bag levy has been in place from in 2002, thus reducing plastic bag use by more than 59% [24]. Taiwan developed its recycling industry into a successful circular economy model using the 4-in-1 Recycling Program in 1997 [14,25]. Figure 2 shows the variations in the generated MSW and its type in Taiwan in recent years (2018–2020). Herein, the waste generated by employees in these industries has been incorporated into MSW since 2018, thus indicating a significant increase, from 7871 thousand metric tons in 2017 to 9741 thousand metric tons in 2018 [18]. An increase was also shown in recyclable waste, including a variety of containers, such as metal, glass, Teltra Pak, paper, and plastics. Table 3 summarizes the reported amounts of plastic containers and other plastic products recycled by implementing agencies in Taiwan since 2016, indicating an increasing trend that was unaffected by the COVID-19 pandemic. However, the compositions of plastics in the garbage showed a slight increase in recent years, as seen in Table 4 and shown in Figure 3. The reasons for this change could be attributed to the decline in the recycling of plastic products and “Diversified MSW Treatment Program” promoting waste-to-power. In this regard, the restrictions on the use of plastic products in Taiwan was not significant, even though regulatory measures have been implemented for 15 years. Figure 3 additionally indicated a significant increase in chlorine content in 2020, reflecting that kitchen waste (containing salt), household waste containing disinfectant (e.g., chlorine dioxide, sodium hypochlorite) or PVC-made products were generated during the COVID-19 pandemic. Therefore, some toxic compounds, such as dioxins, may be released in greater amounts from MSW incineration plants [2]. Environments 2022, 8, x FOR PEER REVIEW 6 of 10 Environments 2022, 9, 7 6 of 10 toxic compounds, such as dioxins, may be released in greater amounts from MSW in- cineration plants [2]. Environments 2022, 8, x FOR PEER REVIEW 7 of 10 Figure 2. Variations in the generated amounts of MSW and their type in Taiwan since 2018 [18]. Figure 2. Variations in the generated amounts of MSW and their type in Taiwan since 2018 [18]. Table 3. Reported amounts of plastic containers and other plastic products recycled by imple- menting agencies in Taiwan since 2016 . Year Plastic Containers Other Plastic Products 2016 262,972 57,060 2017 301,926 82,271 2018 367,741 95,872 2019 413,992 110,738 2020 459,802 140,980 First half of 2020 215,279 67,320 Second half of 2020 244,523 73,660 First half of 2021 223,670 70,514 Source [18,19]; unit: metric ton. Table 4. Reported amounts of garbage (general waste) generation, proximate analysis and compo- sition by plastics in Taiwan since 2018 . Garbage Generation Proximate Analysis (wt%) Composition by Plastics Figure 3. Variations in garbage compositions by plastics and elemental chlorine during the period Figure 3. Variations in garbage compositions by plastics and elemental chlorine during the period of Year of 2009–2020 [18]. (Metric Ton) Moisture Ash Combustibles (wt%) 2009–2020 [18]. 2016 3,133,582 52.91 6.28 40.81 16.61 3.3. Impacts of C Table OVID- 3. Reported 19 Pandemi amou c on nts Pl of asti plastic c Procontainers ducts Recycl and inother g plastic products recycled by implementing 2017 3,130,735 52.60 6.07 41.33 16.00 agencies in Taiwan since 2016 . The regulatory lockdown measures resulting from the COVID-19 pandemic may 2018 4,317,339 50.77 6.12 43.10 17.79 have had huge impacts on environmental issues, including air quality and waste man- 2019 4,290,856 48.49 6.63 44.88 18.67 Year Plastic Containers Other Plastic Products agement [26–31]. Regarding the impacts of COVID-19 event on plastic waste manage- 2020 4,062,029 45.34 9.27 45.40 20.20 2016 262,972 57,060 ment, there was an increased generation of plastic waste caused by the excessive con- 1 2 Source [18]. Wet basis. 2017 301,926 82,271 sumption of single-use plastics due to the need for temporary relief and plastic-wrapped 2018 367,741 95,872 articles (e.g., disinfectants and spray bottles) during the pandemic [32–37]. In addition, 2019 413,992 110,738 the most common materials reused in face masks include non-woven fibrous plastics 2020 459,802 140,980 such as polypropylene First (PP) [38 half of 2020 ], also causing the increa 215,279 se in plastics or plastic wa 67,320 ste Second half of 2020 244,523 73,660 during the COVID-9 pandemic. First half of 2021 223,670 70,514 In early 2020, Taiwan started to implement proactive measures against the Source [18,19]; unit: metric ton. COVID-19 pandemic. As shown in Figure 1, the profile of confirmed COVID-19 cases indicated a successful epidemic prevention by the use of regulatory measures (e.g., con- tact-tracing, testing, face-masking, social distancing, and quarantine) and innovative in- formation technology, which jointly worked with the National Health Insurance (NHI) system and the National Central Epidemic Command Center (CECC). Although the CECC announced Alert Level 2 before April 2021, during the pandemic, Taiwan’s eco- nomic and daily living activities continued as usual, with overseas Taiwanese returning to the island. This smooth situation came to an end in mid-May 2021 when an outbreak of COVID-19 transmission has broken out everyday life for about two months. As the CECC raised the national epidemic alert to the Level 3 on 19 May 2021, the COVID-19 confirmed cases significantly fell from August 2021 to October 2021. New cases per day fell from 535 on 17 May 2021 to an average of fewer than 3 in October 2021. In response to the COVID-19 outbreak in May 2021, the Taiwan EPA allowed regulated enterprises to apply to local competent authorities for exemptions from the prohibition on the use of disposable plastic tableware. Once approved, they were allowed to use disposable ta- bleware made of materials other than plastics for up to 90 days. Concerning the impact of the COVID-19 outbreak on the amounts of plastic containers and other plastic products that were recycled, Figure 4 depicted the monthly variations in plastic containers and other plastic products that were recycled by the implementing agencies from January 2020 to July 2021. The results showed that there was no significant change in the quanti- ties of recycled plastic containers and other plastic products since January 2020, espe- cially in the outbreak period from May 2021 to July 2021. Environments 2022, 9, 7 7 of 10 Table 4. Reported amounts of garbage (general waste) generation, proximate analysis and composi- tion by plastics in Taiwan since 2018 . Proximate Analysis (wt%) Garbage Generation Composition by Year (Metric Ton) Plastics (wt%) Moisture Ash Combustibles 2016 3,133,582 52.91 6.28 40.81 16.61 2017 3,130,735 52.60 6.07 41.33 16.00 2018 4,317,339 50.77 6.12 43.10 17.79 2019 4,290,856 48.49 6.63 44.88 18.67 2020 4,062,029 45.34 9.27 45.40 20.20 1 2 Source [18]. Wet basis. 3.3. Impacts of COVID-19 Pandemic on Plastic Products Recycling The regulatory lockdown measures resulting from the COVID-19 pandemic may have had huge impacts on environmental issues, including air quality and waste manage- ment [26–31]. Regarding the impacts of COVID-19 event on plastic waste management, there was an increased generation of plastic waste caused by the excessive consump- tion of single-use plastics due to the need for temporary relief and plastic-wrapped arti- cles (e.g., disinfectants and spray bottles) during the pandemic [32–37]. In addition, the most common materials reused in face masks include non-woven fibrous plastics such as polypropylene (PP) [38], also causing the increase in plastics or plastic waste during the COVID-9 pandemic. In early 2020, Taiwan started to implement proactive measures against the COVID-19 pandemic. As shown in Figure 1, the profile of confirmed COVID-19 cases indicated a suc- cessful epidemic prevention by the use of regulatory measures (e.g., contact-tracing, testing, face-masking, social distancing, and quarantine) and innovative information technology, which jointly worked with the National Health Insurance (NHI) system and the National Central Epidemic Command Center (CECC). Although the CECC announced Alert Level 2 before April 2021, during the pandemic, Taiwan’s economic and daily living activities continued as usual, with overseas Taiwanese returning to the island. This smooth situation came to an end in mid-May 2021 when an outbreak of COVID-19 transmission has broken out everyday life for about two months. As the CECC raised the national epidemic alert to the Level 3 on 19 May 2021, the COVID-19 confirmed cases significantly fell from August 2021 to October 2021. New cases per day fell from 535 on 17 May 2021 to an average of fewer than 3 in October 2021. In response to the COVID-19 outbreak in May 2021, the Taiwan EPA allowed regulated enterprises to apply to local competent authorities for exemptions from the prohibition on the use of disposable plastic tableware. Once approved, they were allowed to use disposable tableware made of materials other than plastics for up to 90 days. Concerning the impact of the COVID-19 outbreak on the amounts of plastic containers and other plastic products that were recycled, Figure 4 depicted the monthly variations in plastic containers and other plastic products that were recycled by the implementing agencies from January 2020 to July 2021. The results showed that there was no significant change in the quantities of recycled plastic containers and other plastic products since January 2020, especially in the outbreak period from May 2021 to July 2021. Environments 2022, 9, 7 8 of 10 Environments 2022, 8, x FOR PEER REVIEW 8 of 10 Figure 4. Monthly variations in plastic containers and other plastic products recycled by Figure 4. Monthly variations in plastic containers and other plastic products recycled by implement- implementing agencies from January 2020 to July 2021 [19]. ing agencies from January 2020 to July 2021 [19]. 4. Conclusions 4. Conclusions This work may be the first study on the impacts of the COVID-19 pandemic on This work may be the first study on the impacts of the COVID-19 pandemic on plastic plastic waste generation and plastic products’ recycling in Taiwan during the period of waste generation and plastic products’ recycling in Taiwan during the period of 2020–2021 2020–2021 (u (up p to toJu July). ly). Based on the off Based on the ofificial cial sta statistics tistics by the Ta by the Taiwan iwan EPA, the EPA, the reported reported amounts of amounts of p plastic lastic cont containers ainers and andother other p plastic lastipr c products tha oducts that wer t were e recycled recycled by imple- by implementing agencies indicated an increasing trend and were unaffected by the COVID-19 pandemic in 2020. menting agencies indicated an increasing trend and were unaffected by the COVID-19 pandemic inHowever 2020. Howev , the e amount r, the am ofount of plastics pin lasti the cs i garbage n the ga showed rbage showed a slight a incr slight i ease in n- recent years crease in recent (2017–2020), years (201 suggesting 7–2020), suggesti that restrictions ng that on restri the use ctions of plastic on the pruse of oducts p inlasti Taiwan c were not significant, even though these regulatory measures have been implemented since 2002. products in Taiwan were not significant, even though these regulatory measures have On the other hand, the chlorine content in the garbage showed a significant increase in been implemented since 2002. On the other hand, the chlorine content in the garbage 2020. The increase could be attributable to the fact that kitchen waste (containing salt), showed a significant increase in 2020. The increase could be attributable to the fact that household waste containing disinfectants (e.g., chlorine dioxide, sodium hypochlorite, kitchen waste (containing salt), household waste containing disinfectants (e.g., chlorine or other chlorine-containing disinfectants) or PVC-made products were generated more dioxide, sodium hypochlorite, or other chlorine-containing disinfectants) or PVC-made during the COVID-19 pandemic. Furthermore, the data also showed that the quantities of products were generated more during the COVID-19 pandemic. Furthermore, the data recycled plastic containers and other plastic products showed no significant change since also showed that the quantities of recycled plastic containers and other plastic products January 2020, especially in the outbreak period from May 2021 to July 2021. Concerning the showed no significant change since January 2020, especially in the outbreak period from goal of zero plastic waste being achieved by 2030, the reduction rates of regulated plastic May 2021 to July 2021. Concerning the goal of zero plastic waste being achieved by 2030, containers or single-use plastic products in Taiwan should be enhanced by the adoption of the reduction rates of regulated plastic containers or single-use plastic products in Tai- more compulsory measures against plastic pollution using relevant laws, such as a ban on wan should be enhanced by the adoption of more compulsory measures against plastic the use of certain single-use plastic products. pollution using relevant laws, such as a ban on the use of certain single-use plastic products. Funding: This research received no external funding. Funding: This research received no external funding. Institutional Review Board Statement: Not applicable. Institutional Review Board Statement: Not applicable. 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Journal

Environments – Multidisciplinary Digital Publishing Institute

Published: Jan 4, 2022

Keywords: plastic waste; plastic products; trend analysis; regulatory measures; restricted consumption; COVID-19 pandemic

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