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首页> 外文会议>Air Waste Management Association's Annual Conference Exhibition >Evaluation of the CALPUFF Long-range Transport Screening Technique by Comparison to Refined CALPUFF Results for Several Power Plants in both the Eastern and Western United States
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Evaluation of the CALPUFF Long-range Transport Screening Technique by Comparison to Refined CALPUFF Results for Several Power Plants in both the Eastern and Western United States

机译：评估Calpuff远程运输筛选技术与美国东部和美国东部多种电厂的精炼犬成果相比

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The Federal Land Managers' Air Quality Related Workgroup (FLAG) Phase I Report (2000) provides recommendations for evaluating visibility and deposition impacts to Class I areas. Following guidance from U.S. EPA's Interagency Workgroup on Air Quality Modeling (IWAQM) Phase 2 Summary Report and Recommendation for Modeling Long Range Transport Impacts (1998), FLAG recommends using CALPUFF for distant and multi-source analyses. Due to the relatively large time and resource requirements of a refined CALPUFF analysis, an easily conducted CALPUFF screening technique was developed in the 1998 IWAQM report. To ensure a level of conservatism to the results, the screening technique has the counterintuitive requirement of placing receptors in all directions around the sources, irrespective of the direction of the Class I area of concern. In a presentation given at the April 2001 Guideline on Air Quality Models: A New Beginning conference in Newport, Rhode Island, John Irwin (U.S. EPA) and John Notar (National Park Service) began to explore whether a more directional placement of receptors in the screening technique could still generally provide a worst-case maximum impact estimate, and yet be better representative of results obtained with a refined analysis. The motivation was that perhaps fewer full analyses would be needed, thus providing a savings to the regulated community. Because only a few cases were analyzed, the modeling community was requested to compile additional cases. In answer to that request, this paper evaluates the CALPUFF long-range transport screening technique by comparison to refined CALPUFF results for several power plants and an industrial source in both the eastern and western United States. Specifically, visibility impacts and increment-related concentrations of SO2 are compared. Alternative directionally determined receptor placements are examined. Preliminary findings indicate that refining the long-range transport screening technique through the use of directionally determined arcs of receptors probably is of limited utility.
机译：联邦土地管理人员的空气质量相关工作组（国旗）我报告（2000）提供了评估对I级地区的能见度和沉积影响的建议。以下指导美国EPA的空气质量建模（IWAQM）第2期概要报告和建模长距离运输影响的建议（1998），国旗建议使用CALPUFF进行远处和多源分析。由于精致的Calpuff分析的时间和资源需求相对较大，在1998年的IWAQM报告中开发了一种易于进行的Calpuff筛选技术。为了确保对结果的保守级别，筛选技术具有对源各地的所有方向的逆行要求，无论I级关注区域的方向如何。在2001年4月的空气质量模型指南的介绍中：纽波特，罗德岛，约翰·伊尔文（美国EPA）和约翰诺塔尔（国家公园服务）的新开始会议开始探讨是否有更多定向的受体安置筛选技术仍然可以提供最坏情况的最大影响估计，但尚更好地代表通过精致分析获得的结果。这种动机是需要更少的全部分析，从而节省受监管的社区。由于分析了一些案例，因此要求建模社区编制额外的案件。在答案到该请求时，本文通过比较，通过比较，在东部和美国东部和西部的工业来源中，通过比较来评估Calpuff远程运输筛选技术。具体地，比较可视性影响和相关的SO2浓度。检查替代方向确定的受体放置。初步调查结果表明，通过使用定向确定的受体弧形来精炼远程传输筛选技术可能是有限的效用。

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