| 我国重点城市水源及水厂出水中乙草胺的残留水平 |
| 摘要点击 2731 全文点击 1616 投稿时间：2013-09-05 修订日期：2013-11-08 |
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| 中文关键词 乙草胺 水源水 出厂水 残留水平 |
| 英文关键词 acetochlor source water drinking water residual level |
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| 中文摘要 |
| 利用固相萃取-气质联用法调查了我国36个重点城市145个水源水和209个出厂水中乙草胺的残留水平. 水源水中乙草胺的检出率为66.9%，平均浓度为33.9 ng·L-1，水厂处理对乙草胺的去除效果有限. 按不同区域划分，东北地区的检出浓度最高；按水源类型划分，湖库水中浓度远高于河流水和地下水；按水系划分，辽河水系和沿海地区的检出率和检出浓度最高. |
| 英文摘要 |
| 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. |
