According to a study by Yang Wan-fa, a professor in the Institute of Environmental Engineering at National Taiwan University, 35 percent of Taipei's solid waste consists of paper products, 20 percent of plastic, 20 percent of kitchen garbage and 10 percent of glass and metal.
根據台灣大學環工所教授楊萬發最近發表的報告指出，目前台北市垃圾當中，紙類佔百分之卅五、塑膠類佔百分之廿二，廚餘有百分之廿，玻璃與金屬佔將近百分之十。