养猪场废水是农业重大污染源。
Piggery wastewater is a significant agricultural pollutant resources.
伴随着城市化的快速推进，非点源污染已成为城市污染的又一重大污染源，对其进行研究有着重要意义。
With the rapid development of urbanization, non-point source pollution as another major source of urban pollution, to study it is of great significance.
管理重大进出口食品卫生质量事故查处和食源性污染源处理工作。
to administer the investigation and punishment of major accidents of import and export food safety and quality, and the disposal of food-borne pollution sources.
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