Analysis of Household Waste Reduction with the Introduction of a Transparent Garbage Bag System

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  • 透明・半透明袋制導入時のごみ減量効果および減量要因の解析
  • トウメイ ハントウメイブクロセイ ドウニュウジ ノ ゴミ ゲンリョウ コウカ オヨビ ゲンリョウ ヨウイン ノ カイセキ

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Abstract

The purpose of this study is to show the effectiveness of transparent garbage bags in household waste reduction, and to consider whether they merit introduction in the process of reforming waste collection systems. There are many types of household waste collection systems operating in Japan, including the usage of garbage bags. Each local government must decide what kind of garbage bag should be used. Some local governments choose the designated garbage bag system, and others opt for what is called the “free system.” The transparent garbage bag system has more widespread usage in the Kinki area as compared to other areas. Per capita quantities of household waste were compared in 33 cities where either the transparent garbage bag system, the designated garbage bag system, or the free system has been implemented. It was found that the transparent garbage bag system had some effect in reducing household waste. Surveys of household waste before and after the introduction of the transparent garbage bag system in Hirakata City, Osaka, indicated a noticeable reduction in per capita quantities of food waste (excluding unused food), newspapers, magazines, clothes, and some types of packaging.

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