• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文OA文献 >Levels and spatial distribution of chlorophenols 2,4-dichlorophenol, 2,4,6-trichlorophenol, and pentachlorophenol in surface water of China
【2h】

Levels and spatial distribution of chlorophenols 2,4-dichlorophenol, 2,4,6-trichlorophenol, and pentachlorophenol in surface water of China

机译：中国地表水中氯酚2,4-二氯酚，2,4,6-三氯酚和五氯酚的水平和空间分布

页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The chlorophenol pollutants (CPs) have been reported to occur at relatively high concentrations in some Chinese waters. To map the distribution of CPs in the surface water throughout China, samples were collected from over 600 sites in the seven major watersheds and three drainage areas. The samples were analyzed for the representative CPs including 2,4-dichlorophenol, 2,4,6-trichlorophenol, and pentachlorophenol. In general, it was observed that 2,4-dichlorophenol and 2,4,6-trichlorophenol were more frequently detected at higher concentrations in the rivers of North China compared with those of South China. High concentration sites of 2,4-dichlorophenol and 2,4,6-trichlorophenol mainly Occurred in the Yellow River, Huaihe River, and Haihe River watersheds, while pentachlorophenol contamination mainly occurred in the Yangtze River watershed. The pentachlorophenol was the most ubiquitous CPs being detected in 85.4%) of samples (median = 50.0 ng l (- 1); range 1.1 - 594.0 ng l (- 1)), 2,4-dichlorophenol was detected in 51.3% (median = 5.0 ng l (- 1); range 1.1 - 19960.0 ng l (- 1)) and the 2,4,6-trichlorophenol was detected in 54.4% of water samples (median =2.0 ng l (- 1), range 1.4 - 28650.0 ng l (- 1)). The results of this investigation indicated that 2,4-dichlorophenol and 2,4,6-trichlorophenol contaminations of Yellow River, Huaihe River, and Haihe River watersheds were of particular concern, while the pentachlorophenol contamination mainly occurred in the Yangtze River watershed. These results showed that CPs contamination in the surface water of China was similar to other places of the world. (c) 2007 Elsevier Ltd. All rights reserved.
机译：据报道，在中国的某些水域中，氯酚污染物（CPs）的浓度较高。为了绘制CP在中国地表水中的分布图，我们从七个主要流域和三个流域的600多个站点采集了样本。分析了样品中的代表性CP，包括2,4-二氯苯酚，2,4,6-三氯苯酚和五氯苯酚。一般而言，与华南地区相比，华北地区河流中较高浓度的2,4-二氯苯酚和2,4,6-三氯苯酚含量更高。 2,4-二氯苯酚和2,4,6-三氯苯酚的高浓度场所主要发生在黄河，淮河和海河流域，而五氯苯酚的污染主要发生在长江流域。五氯苯酚是在85.4％的样品中检测到的最普遍的CP（中位数= 50.0 ng l（-1）;范围<1.1-594.0 ng l（-1）），检测到的2,4-二氯苯酚的51.3％（中位数= 5.0 ng l（-1）;范围<1.1-19960.0 ng l（-1）），在54.4％的水样品中检测到2,4,6-三氯苯酚（中位数= 2.0 ng l（-1），范围<1.4-28650.0 ng l（-1））。调查结果表明，黄河，淮河和海河流域的2,4-二氯苯酚和2,4,6-三氯苯酚污染尤其令人关注，而五氯苯酚污染主要发生在长江流域。这些结果表明，中国地表水中的CP污染与世界其他地方相似。 （c）2007 Elsevier Ltd.保留所有权利。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号