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首页> 外文会议>Annual conference of the International Society of Exposure Science >Assessing the Air Quality Health Benefits of Location-Specific Emission Controls: A Source Attribution Study using Adjoint Sensitivity Analysis
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Assessing the Air Quality Health Benefits of Location-Specific Emission Controls: A Source Attribution Study using Adjoint Sensitivity Analysis

机译：评估特定地点排放控制的空气质量对健康的益处：使用伴随敏感性分析的来源归因研究

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Background. Air quality management strategies that seek to maximize the benefits of emission control policies are best informed by source-specific air quality damage estimates. Adjoint sensitivity analysis is a tool that allows modellers to differentiate between emissions in different locations and their influences on air quality-related health effects and can thus guide emission reduction policies to preferentially target sources whose emissions are most influential on health. Aims. In this work, we aim to create a streamlined approach for comparing health benefits to costs of air pollution abatement using the source-specific information offered by adjoint sensitivity analysis. Methods. We use the adjoint of CMAQ to integrate epidemiological data with adjoint chemical transport modeling. We attribute national averted mortality in Canada and the U.S. (expressed in monetary terms as a "health benefit") to location-specific emission reductions of NOx, VOCs and other species in North America. Results. Our past work on ozone and NO2-related mortality suggests significant spatial variability of health benefits related to emission reductions across North America. The largest Canadian health benefits come from emission reductions upwind of Toronto; reaching upwards of $250K/day and $50K/day (for 10% reductions in NOx and VOCs). For the U.S., we observe consistently higher-magnitude influences, and in some major urban areas we estimate negative influences (disbenefits) of controlling emissions (e.g., -$680K/day from New York for NOx) whose interpretation requires consideration for long-term air quality planning. As a continuation of past work, we conduct a multi-pollutant analysis and investigate the temporal component of health benefit influences related to emission controls in various locations. Conclusions. The source specificity of adjoint heath benefit influences offers valuable information for selective targeting of emissions for strategic air quality management.
机译：背景。寻求最大化排放控制政策收益的空气质量管理策略最好根据特定来源的空气质量损害估算来提供。伴随敏感性分析是一种工具，可让建模人员区分不同位置的排放及其对与空气质量相关的健康影响的影响，从而可以指导减排政策优先考虑那些对健康影响最大的排放源。目的在这项工作中，我们旨在创建一种简化的方法，使用伴随敏感性分析提供的特定于源的信息，将健康益处与减少空气污染的成本进行比较。方法。我们使用CMAQ的伴随物将流行病学数据与伴随的化学物运输模型相结合。我们将加拿大和美国避免的全国性死亡率（以货币形式表示为“健康利益”）归因于北美特定地区的NOx，VOC和其他物种的排放量减少。结果。我们过去在臭氧和与NO2有关的死亡率方面的研究表明，与整个北美地区的减排量有关的健康益处在空间上存在很大差异。加拿大最大的健康收益来自多伦多上风的减排。达到每天25万美元和5万美元以上（氮氧化物和挥发性有机化合物减少10％）。对于美国，我们一直观察到幅度较大的影响，并且在一些主要城市地区，我们估计控制排放的负面影响（不利因素）（例如，每天从纽约排放NOx达到-$ 680K），其解释需要长期考虑空气质量计划。作为过去工作的延续，我们进行了多种污染物分析，并研究了与各个地方的排放控制有关的健康效益影响的时间性成分。结论伴生健康利益影响的来源特异性为战略性空气质量管理的排放目标选择提供了有价值的信息。

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