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首页> 外文会议>Annual conference of the International Society of Exposure Science >ChemSTEER: A Computerized Tool for Assessing Workplace Releases and Exposures of Chemicals
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ChemSTEER: A Computerized Tool for Assessing Workplace Releases and Exposures of Chemicals

机译：ChemSTEER：评估工作场所化学品排放和暴露的计算机化工具

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The Office of Pollution Prevention and Toxics (OPPT) of the United States Environmental Protection Agency (US EPA) has developed several exposure assessment tools, databases and models to evaluate the fate of chemicals when they are used and released to the environment and how workers, the general public, consumers and aquatic ecosystems may be exposed to the chemicals. This presentation will provide an overview of a computerized tool for estimating workplace releases and exposures of chemicals during various activities including manufacture, processing (e.g. formulation) and industrial and commercial uses. The tool consists of peer reviewed mathematical models and industry- specific release and exposure scenarios that can be used to estimate exposures and releases in the absence of data and/or to augment available data. The tool is used routinely as part of the risk assessment of new chemicals in the Office of Pollution Prevention and Toxics (OPPT) of the US EPA. It can also be used to develop estimates of workplace exposures and releases of existing chemicals. This tool, Chemical Screening Tool for Exposures and Environmental Releases (ChemSTEER), was originally designed for internal use by staff in EPA/OPPT for estimating workplace exposures and releases of new chemicals. The latest version of the tool, ChemSTEER version 3.1, has significant improvements over earlier versions: (1) it is more user-friendly, (2) it includes a new mass balance model for estimating vapor concentrations using a near-field/far-field approach, (3) it includes pre-defined scenarios that minimize the effort required to prepare assessments, and (4) it allows easier access to release and exposure models. Note: The views in this abstract are those of the authors and do not represent Agency policy or endorsement.
机译：美国环境保护局（US EPA）的污染预防和毒理学办公室（OPPT）开发了几种暴露评估工具，数据库和模型，以评估化学品在使用和释放到环境中时的去向以及工人，公众，消费者和水生生态系统可能会接触到这些化学物质。本演讲将概述用于评估包括制造，加工（例如配方）以及工业和商业用途在内的各种活动期间工作场所释放和化学品暴露的计算机化工具。该工具包括经过同行评审的数学模型以及针对特定行业的排放和暴露情景，可用于在没有数据的情况下估计暴露和排放，和/或增加可用数据。该工具在美国EPA的污染预防和毒理学办公室（OPPT）中常规用作新化学品风险评估的一部分。它也可用于估算工作场所的暴露量和现有化学物质的释放量。此工具，即暴露和环境释放化学物质筛选工具（ChemSTEER），最初是供EPA / OPPT人员内部使用的，用于估计工作场所的暴露和新化学物质的释放。该工具的最新版本ChemSTEER 3.1版相对于早期版本进行了重大改进：（1）更加用户友好;（2）它包括一个新的质量平衡模型，可使用近场/远场估算蒸气浓度。现场方法（3）包括预定义的方案，这些方案可以最大程度地减少准备评估所需的工作量;（4）可以更轻松地访问发布和暴露模型。注意：本摘要中的观点是作者的观点，并不代表原子能机构的政策或认可。

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