Photochemical ozone creation potentials for organic compounds in northwest Europe calculated with a master chemical mechanism

Photochemical ozone creation potentials for organic compounds in northwest Europe calculated with a master chemical mechanism
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DOI:
10.1016/s1352-2310(98)00053-3
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发表时间:
1998-08-01
影响因子:
5
通讯作者:
Pilling, MJ
Pilling, MJ
中科院分区:
环境科学与生态学2区
文献类型:
--
作者:
Derwent, RG;Jenkin, ME;Pilling, MJ

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一个主化学机制,包含超过2400种化学物质和超过7100个化学反应,在这里描述的大气降解的120种有机化合物和相关的区域尺度臭氧和PAN形成的条件下,适合于污染的边界层在欧洲西北部。光化学臭氧和PAN的创建潜力(POCP和PPCP)来自每种有机化合物从他们的倾向,形成臭氧和PAN相对于乙烯和丙烯,分别。这些POCP值的NO,排放密度在整个欧洲的变化的鲁棒性进行了测试,并与以前的研究值进行了比较。POCP值的审查和合理化的背景下,我们目前的理解的固有特性的每种有机化合物,其大气降解途径和其他机械数据。这些持久性有机污染物应有助于决策者制定切实可行的、强有力的污染控制战略,重点关注那些对整个西北欧区域范围臭氧形成贡献最大的有机化合物。(C)1998由Elsevier Science Ltd.出版。保留所有权利。
A Master Chemical Mechanism containing over 2400 chemical species and over 7100 chemical reactions is employed here to describe the atmospheric degradation of 120 organic compounds and the associated regional scale ozone and PAN formation under conditions appropriate to the polluted boundary layer over northwest Europe. Photochemical ozone and PAN creation potentials (POCP and PPCP) are derived for each organic compound from their propensities to form ozone and PAN relative to ethylene and propylene, respectively. The robustness of these POCP values to changes in the NO, emission densities across Europe is tested and the values are compared with previous studies. The POCP values are reviewed and rationalised against the background of our current understanding of the intrinsic properties of each organic compound, their atmospheric degradation pathways and other mechanistic data. These POCPs should assist policy-makers in defining realistic and robust pollution control strategies which focus on those organic compounds which contribute most to regional scale ozone formation across northwest Europe. (C) 1998 Published by Elsevier Science Ltd. All rights reserved.