[Residual levels of acetochlor in source water and drinking water of China's major cities].
[Residual levels of acetochlor in source water and drinking water of China's major cities].
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发表时间：
2014-05
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影响因子：
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通讯作者：
Zhi-yong Yu;Fen Jin;Hongyan Li;W. An;Min Yang
中科院分区：
文献类型：
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作者：
Zhi-yong Yu;Fen Jin;Hongyan Li;W. An;Min Yang
The concentration levels of acetochlor were investigated in source water and drinking water from 36 major cities in China by solid phase extraction (SPE) combined with gas chromatography - mass spectrometry (GC-MS). Acetochlor detection rate was 66.9% in all the 145 source water samples collected with an average concentration of 33.9 ng L-1. The average removal rate of acetochlor was limited through the drinking water treatment process. The detection concentration of the northeast region was the highest. The concentrations of acetochlor detected in lake were higher than those in river and groundwater as source water. The detection rate and concentration of Liaohe river watershed and the coastal watershed were the highest.
