点源污染:来自单一、明确、可定位排放点的污染(如工厂排污口、污水处理厂出水口、管道泄漏点等),常见于水体与大气排放监管中。相对概念是面源污染(nonpoint source pollution)。该词也可泛指“点源造成的污染”。
/ˈpɔɪnt sɔːrs pəˈluːʃən/
Point source pollution is easier to monitor than runoff.
点源污染比地表径流更容易监测。
The report found that point source pollution from upstream factories raised nitrate levels, forcing the city to upgrade its water treatment system.
报告发现上游工厂的点源污染抬高了硝酸盐水平,迫使该市升级其供水处理系统。
point source 原意为“点状来源/单点来源”,在环境科学与法规语境中用来区分污染的来源类型:若排放能被明确定位到一个“点”(如排口、烟囱、管道),就称为 point source;pollution 来自拉丁语 polluere(弄脏、玷污)。组合后 point source pollution 就是“来自可识别排放点的污染”。