• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Air quality, atmosphere & health >Airborne trace metals from coal combustion in Beijing
【24h】

Airborne trace metals from coal combustion in Beijing

机译：北京燃煤产生的空气中微量金属

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

Prior studies have measured elevated ambient concentrations of hazardous metals in Beijing, attributable to coal combustion. The 2008 Olympic Games led to an intense investment in air pollution controls at the major power plants in the region, accounting for 30% of coal combustion in Beijing. Recently Chinese coal beds have been characterized in the World Coal Quality Index, facilitating the development of trace metal emission factors for Beijing coals. This study quantifies the relative value of the power plant air pollution controls in terms of public health risk from chronic exposure to trace metals. Ambient concentrations from power plants were estimated using an atmospheric dispersion model (CALPUFF), outlining spatial and temporal variations. The following toxic, refractory metals were evaluated for health risk using the USEPA Integrated Risk Information System: antimony, arsenic, beryllium, cadmium, chromium, cobalt, copper, lead, manganese, nickel, and selenium. Stringent use of power plant air pollution controls significantly reduces population risk, averting a cancer risk of 1 in 5,000. However, other sources of coal combustion, such as industrial and household uses, are more relevant to public health than power plant emissions. Coal washing has potential to reduce the hazard from these diffuse sources and avert a greater number of potential cancer cases.
机译：先前的研究已经测量出北京可归因于煤炭燃烧的有害金属浓度升高。 2008年奥运会导致该地区主要发电厂在空气污染控制方面投入了大量资金，占北京燃煤总量的30％。最近，中国的煤层已成为世界煤炭质量指数的特征，促进了北京煤的微量金属排放因子的发展。这项研究从长期暴露于痕量金属引起的公共健康风险中量化了电厂空气污染控制的相对价值。利用大气扩散模型（CALPUFF）估算了发电厂的环境浓度，概述了空间和时间变化。使用USEPA综合风险信息系统评估了以下有毒难熔金属的健康风险：锑，砷，铍，镉，铬，钴，铜，铅，锰，镍和硒。严格使用电厂的空气污染控制措施可大大降低人口风险，避免了每5,000人中有1人患癌症。但是，其他燃煤来源，例如工业和家庭用途，与发电厂的排放相比，对公众健康的影响更大。洗煤具有减少来自这些分散源的危害并避免更多潜在癌症病例的潜力。

著录项

  • 来源
    《Air quality, atmosphere & health》 |2013年第1期|157-165|共9页
  • 作者

    Sheila Xiah Kragie; P. Barry Ryan; Michael H. Bergin; Shuxiao Wang;

  • 作者单位

    1.Department of Environmental Health Rollins School of Public Health of Emory University Atlanta GA USA 4.Department of Earth and Environmental Sciences Lamont-Doherty Earth Observatory Columbia University 61 Route 9W PO Box 1000 Palisades NY 10964 USA;

    1.Department of Environmental Health Rollins School of Public Health of Emory University Atlanta GA USA;

    2.Department of Civil and Environmental Engineering Georgia Institute of Technology Atlanta GA USA;

    3.State Key Joint Laboratory of Environment Simulation and Pollution Control Tsinghua University Beijing 100084 People’s Republic of China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Trace metals; Coal; China; Air pollution; Health risk; Dispersion model;

    机译：痕量金属;煤炭;中国;空气污染;健康风险;分散模型;

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