...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Environmental Pollution >Environmental contamination of mercury from Hg-mining areas in Wuchuan, northeastern Guizhou, China
【24h】

Environmental contamination of mercury from Hg-mining areas in Wuchuan, northeastern Guizhou, China

机译：贵州东北吴川汞矿区汞的环境污染

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Total Hg and methyl-Hg were evaluated in mine wastes, soils, water, and vegetations from the Wuchuan Hg-mining areas, Guizhou, China. Mine wastes contain high total Hg concentrations, ranging from 79 to 710 mu g g(-1), and methyl-Hg from 0.32 to 3.9 ng g(-1). Total Hg in soil samples range from 0.33 to 320 mu g g(-1) and methyl-Hg from 0.69 to 20 ng g(-1). Vegetations present a high average total Hg concentration of 260 ng g(-1), which greatly exceeds the maximum Hg concentration of 20 ng g(-1) recommended by the Chinese National Standard Agency for food sources. The rice samples contain elevated methyl-Hg concentrations, ranging from 4.2 to 18 ng g(-1). Stream water collected from Hg-mining areas is also contaminated, containing Hg as high as 360 ng l(-1), and methyl-Hg reaches up to 5.7 ng l(-1). Data indicate heavy Hg-contaminations and significant conversion of methyl-Hg in the study areas. (c) 2005 Elsevier Ltd. All rights reserved.
机译：对来自中国贵州吴川汞矿区的矿山废物，土壤，水和植被中的总汞和甲基汞进行了评估。矿山废物中的总汞含量很高，范围从79至710微克g（-1），甲基汞的含量从0.32至3.9 ng g（-1）。土壤样品中的总汞含量为0.33至320μg g（-1），甲基汞的含量为0.69至20 ng g（-1）。植被的平均总Hg浓度很高，为260 ng g（-1），大大超过了中国国家标准局对食物来源推荐的最大Hg浓度20 ng g（-1）。大米样品中的甲基汞浓度升高，范围为4.2至18 ng g（-1）。从汞矿区收集的溪流水也受到污染，其汞含量高达360 ng l（-1），而甲基汞高达5.7 ng l（-1）。数据表明在研究区域中汞污染严重，甲基汞大量转化。 （c）2005 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
获取原文

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