16.Nonbiodegradable pollutants, such as certain chlorinated hydrocarbon pesticides (e.g.DDT) and heavy metals, such as lead, copper, and zinc in some industrial effluents, accumulate in the environment.
生物不可降解的污染,如氯代烃类杀虫剂(如DDT)和工业废水中的重金属,如铅、铜和锌,在环境中积累。