精选优质文档-倾情为你奉上Text:Everybodys ProblemHazardous Waste每个人的问题危险废物Every year ,billions of tons of solid wastes are discarded in the United Stastes. 美国每年丢去10亿吨的固体废物。These wastes range in nature from common household trash to complex materials in industrial wastes ,sewage sludge ,agricultural resideus ,mining refuse and pathological wastes from institutions such as hospital and laboratories.这些废物的变化范围在平常家庭产生的垃圾到工业废物的复合材料、污水、农业废渣、矿渣和像医院、实验室这种大型机构产生的病理废物。The U.S Environmental Protection
