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首页> 外文会议>Specialty Conference on Emission Inventory: Living in a Global Environment Vol.1 Dec 8-10, 1998, New Orleans, LA >The 1996 National Toxics Inventory and its Role in the Government Performance and Results Act
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The 1996 National Toxics Inventory and its Role in the Government Performance and Results Act

机译：1996年国家有毒物质​​清单及其在政府绩效和结果法中的作用

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摘要

The Environmental Protection Agency has routinely collected emissions inventory data for criteria pollutants for about 20 years. The 1990 amendments to the Clean Air Act (CAA) provided a new focus on hazardous air pollutants (HAPs) that resulted in a similar need for HAP emissions inventories. As a result the EPA's Office of Air Quality Planning and Standards (OAQPS) has produced several inventory products that provide data for specific CAA needs. Examples are the seven pollutant (112(c)(6)) and urban program (112(k)) inventories, and the 1993 National Toxics Inventory (NTI). More recently, the Government Performance and Results Act (GPRA) has established the need for a more comprehensive HAP emissions inventory effort that can be used to track EPA's progress over time in reducing HAPs in ambient air. In response to GPRA, EPA has established goals for the Air Toxics Program that require first, a demonstration of HAP emissions reductions, and in later years, a demonstration of reduced risk to the public from HAP emissions. To meet the objective of estimating risk, EPA will need a model-ready emissions inventory in order to perform dispersion and exposure modeling. The OAQPS 1996 NTI will be the first effort to estimate not only HAP emissions on a national scale, but also source-specific parameters necessary for modeling such as location and facility characteristics (stack height, exit velocity, temperature, etc.). The compilation of this huge amount of data presents a significant challenge to OAQPS. Since HAPs estimates have not previously been required, current data is limited and new methodologies for estimating emissions are necessary. In order to begin compiling the necessary data, OAQPS has solicited HAP emissions data from the states. Approximately thirty states have delivered HAP emissions inventories they have voluntarily compiled. This state data varies in completeness, format, and quality. OAQPS will evaluate and supplement the state data and estimate emissions from missing states and from sources not included in state data in order to produce a complete model-ready national 1996 inventory. This paper will discuss OAQPS' plans for establishing the 1996 NTI including methodologies, schedule, format, and review.
机译：环境保护署已定期收集约20年的标准污染物排放清单数据。 1990年的《清洁空气法》（CAA）修正案将新的重点放在了有害空气污染物（HAP）上，导致对HAP排放清单的需求也与此类似。结果，EPA的空气质量计划和标准办公室（OAQPS）生产了几种库存产品，这些产品可提供满足CAA特定需求的数据。例如，七种污染物（112（c）（6））和城市计划（112（k））清单，以及1993年国家有毒物质​​清单（NTI）。最近，《政府绩效和结果法案》（GPRA）确立了对更全面的HAP排放清单工作的需求，该工作可用于跟踪EPA在减少环境空气中HAP方面的进展。作为对GPRA的回应，EPA已为“空气有毒物质计划”制定了目标，该目标首先需要证明HAP的排放量减少，随后几年需要证明减少HAP排放物对公众的风险。为了达到估算风险的目的，EPA将需要模型就绪的排放清单，以便执行扩散和暴露模型。 OAQPS 1996 NTI将不仅是在全国范围内估算HAP排放量，而且是建模所需的特定于源的参数（例如位置和设施特征（烟囱高度，出口速度，温度等））的第一笔工作。大量数据的汇总对OAQPS提出了重大挑战。由于以前不需要HAP估计值，因此当前数据有限，并且需要用于估计排放量的新方法。为了开始汇编必要的数据，OAQPS从各州征求了HAP排放数据。约有三十个州已交付了他们自愿编制的HAP排放清单。此状态数据的完整性，格式和质量各不相同。 OAQPS将评估和补充状态数据，并估算缺失州和未包含在状态数据中的排放，以产生完整的1996年模型就绪清单。本文将讨论OAQPS建立1996年NTI的计划，包括方法，时间表，格式和审查。

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