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A conventional pollutant is a term used in the USA to describe a water pollutant that is amenable to treatment by a municipal sewage treatment plant. A basic list of conventional pollutants is defined in the U.S. Clean Water Act.〔Clean Water Act sec. 304(a)(4), .〕 The list has been amended in regulations issued by the Environmental Protection Agency: * biochemical oxygen demand (BOD) * fecal coliform bacteria * oil and grease * pH (exceeding regulatory limits) * total suspended solids (TSS).〔U.S. Environmental Protection Agency (EPA). Washington, DC. "Conventional pollutants." ''Code of Federal Regulations.'' 1979-09-10.〕 The ''Secondary Treatment Regulation'' contains national discharge standards for BOD, pH and TSS, applicable to sewage treatment plants in the U.S.〔EPA. "Secondary treatment." ''Code of Federal Regulations.'' 1984-10-16.〕 ==See also== * Secondary treatment * Wastewater quality indicators * Water quality 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「conventional pollutant」の詳細全文を読む スポンサード リンク
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