The pollutants derive from a wealth of sources, including agriculture, factory discharges, consumer products, urban runoff and wastewater treatment plants.
污染物质的来源广泛，包括农业、工厂排放物、消费产品、城市河道和污水处理工厂。
2
A tons of pollutants of industry and agriculture discharge into water, making it polluted.
大量的工业、农业污染物排入水中，使水受到污染。
3
The applications of these techniques on the analysis of pesticides and organic pollutants in agriculture and environmental samples are presented and discussed.