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Summer ozone episodes in the Greater Madrid area. Analyzing the ozone response to abatement strategies by modelling

机译:大马德里地区夏季臭氧事件。通过建模分析臭氧对减排策略的响应

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摘要

The development of ozone control strategies requires analysing the sensitivity of the dispersion model used to changes in emissions of nitrogen oxides (NO_X) and volatile organic compounds. The ozone response to variations in road traffic and total anthropogenic emissions is evaluated for two different summer ozone episodes in the Greater Madrid Area (GMA). This study uses the TVM model and a transport/chemistry module in which different chemical mechanisms (EMEP, RACM) are implemented. The results show that the areas of maximum impact and ozone responses are notably influenced by the different transport and dispersion patterns established in the area. However, the contribution of anthropogenic sources other than road traffic is patent in both episodes. Strategies based only on decreasing road traffic emissions were not sufficient for an effective control of the air quality in the GMA. Moreover, certain discrepancies observed in the predicted trends, as a response to these control strategies posed, reflect the importance of variations in the precursors balance. The ozone production regime associated to these ozone episodes and the sensitivity of the ozone response to changes in this balance has been investigated. A chemical indicator has been used to deepen in that evaluation.
机译:臭氧控制策略的发展需要分析用于氮氧化物(NO_X)和挥发性有机化合物排放变化的色散模型的敏感性。针对大马德里地区(GMA)中两个不同的夏季臭氧发作,评估了道路交通和人为排放总量对臭氧的响应。本研究使用TVM模型和运输/化学模块,在其中实施了不同的化学机制(EMEP,RACM)。结果表明,影响最大和臭氧响应最大的区域受到该区域建立的不同迁移和扩散模式的影响。然而,在这两次事件中,除了道路交通以外,人为来源的贡献都是专利。仅基于减少道路交通排放量的策略不足以有效控制GMA中的空气质量。此外,作为对这些控制策略的回应,在预测趋势中观察到的某些差异反映了前体平衡变化的重要性。已经研究了与这些臭氧事件相关的臭氧生产方式以及臭氧对这种平衡变化的敏感性。化学指示剂已被用于加深该评价。

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