自来水中有机污染物的检测及评价

Measurement and evaluation of organic pollutants in tap water

目的通过对自来水中有机污染物的检测,了解和评价某市自来水中有机物污染状况。方法用顶空气相色谱法测定自来水中挥发性卤代烃,用气相色谱/质谱联用(GC/MS)法测定其他有机污染物。结果某市5个自来水厂出厂水检出有机污染物均在100种以上,累计308种,其中主要有机污染物81种,致癌、致畸、致突变物质20余种。结论某市自来水已受到不同程度的有机物污染,特别是以滇池为源水的自来水污染较为严重。

Objective To study and evaluate the current levels of organic pollutants in tap water in a city. Methods Volatile halogenated hydrocarbons in tap water were determined by head space gas chromatography and other organic pollutants were determined by gas chromatography/mass spectrometry（GC/MS）. Results There were more than 308 organic pollutants, including 81 priory organic pollutants and more than 20 carcionogenic, teratogenic and mutagenic agents, identified in the tap water from five waterworks in the city. Conclusion The tap water in the city is polluted on different levels by organic pollutants. The tap water from Dianci Lake is most seriously polluted.