美国的固体废物产生量逐年增长。
与1960年相比，美国人在人口增长不到一倍的情况下，年固体废物产生量增长了两倍，达到四亿吨。
Since 1960, the amount of solid waste we create per year has tripled (to 400 million tons)while population has gone up less than 100%.
全市工业固体废物产生量和工业废气排放量的增加主要源于江阴，工业废水排放量的增加主要源于市区。
Increases in industrial solid waste production and industrial waste gas emissions are mainly from Jiangyin, while increases in industrial waste water emissions are mainly from Urban Districts.
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