Aromatic Hydrocarbons and Halocarbons at a Mountaintop in Southern China
Aromatic Hydrocarbons and Halocarbons at a Mountaintop in Southern China
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中国南方山顶的芳香烃和卤代烃
DOI：
10.4209/aaqr.2015.03.0197
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发表时间：
2016-03
影响因子：
4
通讯作者：
Yuhua Li
中科院分区：
文献类型：
--
作者：
Yan Wang;Jianmin Chen;Hongli Li;Yuhua Li
本研究于2011年夏季和2012年春季在庐山采集了45个环境样品。本文还对芳烃和卤代烃的浓度和季节分布进行了测定和讨论。与其他山区相比，个别物种的浓度中等;然而，测量的浓度远低于城市报告的值。对于芳烃，苯和间/对二甲苯是最丰富的物种在春季，而苯和甲苯表现出最大的贡献在夏季。对于卤烃，1，2，4-三氯苯、二氯二氟甲烷和氯甲烷的浓度在春季高于其他气体;二氯二氟甲烷和氯甲烷的贡献最大，在夏季。OH损失率表明，1，3，5-三甲苯和1，2，4-三甲苯是占主导地位的芳烃的OH损失率在春季，而苯乙烯和甲苯的贡献最大的反应性在夏季。对于臭氧形成潜势（OFP），1，2，4-三甲苯和间/对二甲苯在春季OFP中占最大比例（24.3%和23.7%），而甲苯是OFP最丰富的来源（即，43.7%，在夏天。间二甲苯和对二甲苯在春季和夏季对OFP的贡献都很大，分别为23.7%和19.2%。T/B（春季和夏季分别为0.80和0.73）比表明采样的空气质量主要受汽车排放的影响。采样空气团的36小时后向轨迹和相应的个别物种的日浓度表明，远距离迁移对采样地点的大气有很大影响。
In this study, 45 ambient samples were collected in the summer of 2011 and spring of 2012 on Mount Lushan. The concentrations and seasonal distributions of aromatic hydrocarbons and halocarbons were measured and discussed. Moderate concentrations of individual species were found compared with other mountain sites; however, the measured concentrations were much lower than the values reported in cities. For aromatic hydrocarbons, benzene and m/p-xylene were the most abundant species in the spring, while benzene and toluene exhibited the largest contributions in the summer. For halocarbons, the concentrations of 1,2,4-trichlorobenzene, dichlorodifluoromethane and chloromethane were higher than other gases measured in the spring; and dichlorodifluoromethane and chloromethane contributed largest in the summer. The OH loss rates demonstrated that 1,3,5-trimethylbenzene and 1,2,4-trimethylbenzene were the dominant aromatic hydrocarbons for OH loss rates in the spring, while styrene and toluene contributed the largest to reactivity in the summer. For the ozone formation potential (OFP), 1,2,4-trimethylbenzene and m/p-xylene accounted for the largest fraction of the OFPs in the spring (24.3% and 23.7%), while toluene was the most abundant source of OFP (i.e., 43.7%) in the summer. M/p-xylene exhibited large contributions to OFP in both spring and summer (23.7% and 19.2%) of the OFPs. The T/B (0.80 and 0.73 in spring and summer respectively) ratios indicated that the sampled air masses were primarily influenced by automotive emissions. The 36-h backward trajectories of the sampled air masses and the corresponding daily concentrations of individual species suggested that long-range transport had a large effect on the atmosphere at the sampling site.
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影响因子：
6.3
作者：
V. Lanz;B. Buchmann;C. Hueglin;R. Locher;S. Reimann;J. Staehelin
通讯作者：
V. Lanz;B. Buchmann;C. Hueglin;R. Locher;S. Reimann;J. Staehelin
影响因子：
5
作者：
Yu-Jin Choi;S. Ehrman
通讯作者：
Yu-Jin Choi;S. Ehrman
影响因子：
5
作者：
Mao Ting;Wang Yue-si;Xu Hong-hui;Jiang Jie;Wu Fang-kun;Xu Xiao-bin
通讯作者：
Mao Ting;Wang Yue-si;Xu Hong-hui;Jiang Jie;Wu Fang-kun;Xu Xiao-bin
影响因子：
5.5
作者：
J. Suthawaree;Y. Tajima;A. Khunchornyakong;Shungo Kato;A. Sharp;Y. Kajii
通讯作者：
J. Suthawaree;Y. Tajima;A. Khunchornyakong;Shungo Kato;A. Sharp;Y. Kajii
DOI：
--
发表时间：
1998
期刊：
--
影响因子：
--
作者：
R. Draxler
通讯作者：
R. Draxler