首页> 美国政府科技报告 >TOX-SCREEN: A Multimedia Screening-Level Model for Assessing the Potential Fate of Toxic Chemicals Released to Environmental Media
【24h】

TOX-SCREEN: A Multimedia Screening-Level Model for Assessing the Potential Fate of Toxic Chemicals Released to Environmental Media

机译:TOX-sCREEN:用于评估有毒化学品潜在命运的多媒体筛选级模型发布到环境媒体

获取原文

摘要

A screening-level multimedia model called TOX-SCREEN has been developed to assess the potential environmental fate of toxic chemicals chronically released to air, water, or soil. TOX-SCREEN was developed to provide a means by which chemicals classified under Section 4 of the Toxic Substances Control Act (TSCA) can be rapidly evaluated with respect to their potential for accumulation in environmental media. The model is simplified in nature and is intended for use as a screening device to identify chemicals that are highly unlikely to pose problems even under worst-case assumptions. The model assumes a generic positioning of surface water bodies relative to atmospheric pollutant sources and contaminated land areas. Four types of water bodies are considered: lakes, rivers, estuaries, and oceans. The multimedia nature of TOX-SCREEN requires that physical/chemical processes which drive transport of chemicals across media (i.e., air, water, and soil) interfaces be simulated. Such processes include deposition (wet and dry) of airborne pollutants onto water and soil surfaces, volatilization of chemicals from these surfaces, groundwater runoff, and soil erosion via water or wind. (ERA citation 08:047256)

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