국내 생활폐기물의 플라스틱 폐기물 분리배출률 현황 및 수렴 특성 분석 연구 (Empirical Analysis on Changing Trends and Convergence in the Plastic Waste Separate Discharge Rate of Municipal Solid Waste in South Korea)

서지정보

· 발행기관 : 한국폐기물자원순환학회
· 수록지 정보 : 한국폐기물자원순환학회지 / 40권 / 6호 / 623 ~ 637페이지
· 저자명 : 임혜숙, 박하늘

초록

Recycling plastic waste is viewed as a policy alternative to attaining carbon neutrality and mitigating environmental issues such as greenhouse gas emissions and the proliferation of microplastics. A crucial initial phase in this process involves the separate collection of plastic waste for recycling. To comprehend the present situation of the plastic waste separate discharge rate in Korea, we analyzed the plastic waste separate discharge rate within municipal solid waste and examined the stochastic convergence characteristics of time series data. The findings reveal that as of 2021, the nationwide ratio of plastic waste separate discharge rate stands at 38.5%, the Gwangju Metropolitan City boasts the highest rate at 55.8%, while Gyeongsangbuk-do records the lowest rate at 12.6%. Based on the trend analysis of the plastic waste separate discharge rate, the average annual increase rate is determined to be 2.7% nationwide. The plastic waste separate discharge rate exhibited a consistent upward trend, escalating from 19.6% in 1996 to 41.6% in 2009. However, since 2010, the rate has experienced fluctuations, characterized by periods of increase and decrease, and a gradual widening of regional disparities has been observed. To understand the characteristics of the plastic waste separate discharge rate over time, a stochastic convergence analysis was undertaken, employing the unit root test on the time series data. The outcomes indicate that the time series of plastic waste separate discharge rates by region is mostly nonstationary. This implies that policies aimed at promoting the separate collection of plastic waste can be effectively implemented in the long term. Given the distinct time trends in plastic waste separate discharge rates among regions and the obvious widening gap between them, further research is necessary to investigate the factors contributing to these regional disparities.

영어초록

Recycling plastic waste is viewed as a policy alternative to attaining carbon neutrality and mitigating environmental issues such as greenhouse gas emissions and the proliferation of microplastics. A crucial initial phase in this process involves the separate collection of plastic waste for recycling. To comprehend the present situation of the plastic waste separate discharge rate in Korea, we analyzed the plastic waste separate discharge rate within municipal solid waste and examined the stochastic convergence characteristics of time series data. The findings reveal that as of 2021, the nationwide ratio of plastic waste separate discharge rate stands at 38.5%, the Gwangju Metropolitan City boasts the highest rate at 55.8%, while Gyeongsangbuk-do records the lowest rate at 12.6%. Based on the trend analysis of the plastic waste separate discharge rate, the average annual increase rate is determined to be 2.7% nationwide. The plastic waste separate discharge rate exhibited a consistent upward trend, escalating from 19.6% in 1996 to 41.6% in 2009. However, since 2010, the rate has experienced fluctuations, characterized by periods of increase and decrease, and a gradual widening of regional disparities has been observed. To understand the characteristics of the plastic waste separate discharge rate over time, a stochastic convergence analysis was undertaken, employing the unit root test on the time series data. The outcomes indicate that the time series of plastic waste separate discharge rates by region is mostly nonstationary. This implies that policies aimed at promoting the separate collection of plastic waste can be effectively implemented in the long term. Given the distinct time trends in plastic waste separate discharge rates among regions and the obvious widening gap between them, further research is necessary to investigate the factors contributing to these regional disparities.

참고자료

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