Comparison of Ozone Production Regimes between Two Mexican Cities: Guadalajara and Mexico City
Comparison of Ozone Production Regimes between Two Mexican Cities: Guadalajara and Mexico City
复制标题
DOI：
10.3390/atmos7070091
复制
发表时间：
2016-07-01
期刊：
影响因子：
2.9
通讯作者：
Wakamatsu, Shinji
中科院分区：
文献类型：
--
作者：
Kanda, Isao;Basaldud, Roberto;Wakamatsu, Shinji
墨西哥瓜达拉哈拉大都会区（GMA）的臭氧浓度一直在增加。为了帮助设计有效的减缓措施，我们通过化学输送模型（CTM）系统WRF-CMAQ研究了臭氧的形成机制。CTM系统通过GMA和墨西哥城大都市区（MCMA）地面挥发性有机化合物（VOC）和臭氧垂直分布的现场测量数据进行了验证。通过对挥发性有机化合物和氮氧化物（NOx）的排放率进行CTM模拟，发现GMA中的臭氧形成机制处于挥发性有机化合物敏感和氮氧化物敏感之间。该结果与GMA中VOC/NOx排放比相对较大的MCMA相一致，后者的臭氧形成机制处于VOC敏感机制。
Ozone concentrations have been increasing in the Guadalajara Metropolitan Area (GMA) in Mexico. To help devise efficient mitigation measures, we investigated the ozone formation regime by a chemical transport model (CTM) system WRF-CMAQ. The CTM system was validated by field measurement data of ground-level volatile organic compounds (VOC) and vertical profiles of ozone in GMA as well as in the Mexico City Metropolitan Area (MCMA). By conducting CTM simulations with modified emission rates of VOC and nitrogen oxides (NOx), the ozone formation regime in GMA was found to lie between VOC-sensitive and NOx-sensitive regimes. The result is consistent with the relatively large VOC/NOx emission ratio in GMA compared to that in MCMA where the ozone formation regime is in the VOC-sensitive regime.