suizherenleishehuidebuduanfazhan,chengshiguimodebuduankuoda,chengshideyongshuilianghepaishuiliangdouzaibuduanzengjia,jiajuleyongshuidejinzhangheshuizhidewuran,huanjingwentiriyituchu,youcizaochengdeshuiweijiyijingchengweishehuijingjifazhandezhongyaozhiyueyinsu。jutongji:目前全國年排汙量約為350億m3,但城市汙水集中處理率僅為15%,全國超過80%的城市汙水未經任何有效的收集處理就直接排放到附近的水體…
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