...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of environmental science and health, Part A. Toxic/hazardous substances & environmental engineering >Health risk assessment of arsenic from blended water in distribution systems
【24h】

Health risk assessment of arsenic from blended water in distribution systems

机译：分配系统中混合水中砷的健康风险评估

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

In a water distribution system with different sources, water blending occurs, causing specific variations of the arsenic level. This study was undertaken to investigate the concentration and cancer risk of arsenic in blended water in Xi'an city. A total of 672 tap water samples were collected from eight sampling points in the blending zones for arsenic determination. The risk was evaluated through oral ingestion and dermal absorption, separately for males and females, as well as with respect to seasons and blending zones. Although the arsenic concentrations always fulfilled the requirements of the World Health Organization (WHO) (10g L-1), the total cancer risk value was higher than the general guidance risk value of 1.00 x 10(-6). In the blending zone of the Qujiang and No.3 WTPs (Z2), the total cancer risk value was over 1.00 x 10(-5), indicating that public health would be affected to some extent. More than 99 of the total cancer risk was from oral ingestion, and dermal absorption had a little contribution. With higher exposure duration and lower body weight, women had a higher cancer risk. In addition, due to several influential factors, the total cancer risk in the four blending zones reached the maximum in different seasons. The sensitivity analysis by the tornado chart proved that body weight, arsenic concentration and ingestion rate significantly contributed to cancer risk. This study suggests the regular monitoring of water blending zones for improving risk management.
机译：在具有不同来源的配水系统中，会发生水混合，导致砷含量的特定变化。本研究旨在调查习市混合水中砷的浓度和致癌风险。从混合区的八个采样点共抽取了672个自来水样本进行砷测定。通过口服摄入和皮肤吸收分别评估男性和女性的风险，以及季节和混合区。虽然砷浓度始终符合世界卫生组织（WHO）的要求（10g L-1），但总癌症风险值高于1.00 x 10（-6）的一般指导风险值。在曲江和3号污水处理厂（Z2）的混合区，总癌症风险值超过1.00×10（-5），表明公共卫生将受到一定程度的影响。超过99%的总癌症风险来自口服摄入，皮肤吸收有一点贡献。暴露时间越长，体重越轻，女性患癌症的风险就越高。此外，由于多种影响因素的影响，4个混合区的总癌症风险在不同季节达到最大值。龙卷风图的敏感性分析证明，体重、砷浓度和摄入率对癌症风险有显著影响。这项研究建议定期监测水混合区，以改善风险管理。

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