Influence of regional pollution and sandstorms on the chemical composition of cloud/fog at the summit of Mt. Taishan in northern China
Influence of regional pollution and sandstorms on the chemical composition of cloud/fog at the summit of Mt. Taishan in northern China
复制标题
区域污染和沙尘暴对我国北方泰山山顶云雾化学成分的影响
DOI：
10.1016/j.atmosres.2010.11.010
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发表时间：
2011-03
影响因子：
5.5
通讯作者：
Wang, Wenxing
中科院分区：
文献类型：
--
作者：
Wang, Yan;Guo, Jia;Wang, Tao;Ding, Aijun;Gao, Jian;Zhou, Yang;Collett, Jeffrey L., Jr.;Wang, Wenxing
2007年春季，在污染严重的华北平原采集了云/雾样品，以研究污染和尘埃颗粒对云水化学的影响。云水的体积加权平均pH值为3.68。云的酸度被证明与气团起源有关。来自中国南方的云水及其气团轨迹比来自中国北方的云水酸性更高。人为源和尘埃对云水成分有明显影响，观测期间SO42−(1331.65μeqL−1)、NO3−(772.44μeqL−1)、NH4+(1375.92μeqL−1)和Ca2+(625.81μeqL−1)平均浓度非常高。沙尘暴期间，云的pH值相对较高，云水中所有离子的浓度都达到异常高的水平。云事件期间，观察到 PM2.5 和 PM10 质量浓度显着下降。 PM2.5和PM10的平均清除率分别为52.0%和55.7%。在细颗粒中的可溶性离子中，NO3−、K+和NH4+往往比Ca2+和Na+更容易被清除。
Cloud/fog samples were collected during spring of 2007 in the highly polluted North China Plain in order to examine the impact of pollution and dust particles on cloud water chemistry. The volume weighted mean pH of cloud water was 3.68. The cloud acidity was shown to be associated with air mass origins. Cloud water with its air mass trajectories originating from the southern part of China was more acidic than those from northern China. Anthropogenic source and dust had obvious impact on cloud water composition as indicated by the very high mean concentrations of SO42−(1331.65μeqL−1), NO3−(772.44μeqL−1), NH4+(1375.92μeqL−1) and Ca2+(625.81μeqL−1) in the observation periods. During sandstorm days, cloud pH values were relatively high, and the concentrations of all the ions in cloud water reached unusual high levels. Significant decreases in the mass concentrations of PM2.5and PM10were observed during cloud events. The average scavenging ratio for PM2.5and PM10was 52.0% and 55.7%, respectively. Among the soluble ions in fine particles, NO3−, K+and NH4+tend to be more easily scavenged than Ca2+and Na+.
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影响因子：
5
作者：
U. Baltensperger;M. Schwikowski;D. Jost;S. Nyeki;H. Gäggeler;O. Poulida
通讯作者：
U. Baltensperger;M. Schwikowski;D. Jost;S. Nyeki;H. Gäggeler;O. Poulida
影响因子：
5
作者：
Thomas Wrzesinsky;O. Klemm
通讯作者：
Thomas Wrzesinsky;O. Klemm
影响因子：
5
作者：
E. Brüggemann;T. Gnauk;S. Mertes;K. Acker;R. Auel;W. Wieprecht;D. Möller;J. Collett;H. Chang;D. Galgon;R. Chemnitzer;C. Rüd;R. Junek;W. Wiedensohler;H. Herrmann
通讯作者：
E. Brüggemann;T. Gnauk;S. Mertes;K. Acker;R. Auel;W. Wieprecht;D. Möller;J. Collett;H. Chang;D. Galgon;R. Chemnitzer;C. Rüd;R. Junek;W. Wiedensohler;H. Herrmann
影响因子：
6.4
作者：
L. Zimmermann;F. Zimmermann
通讯作者：
L. Zimmermann;F. Zimmermann
DOI：
10.1007/s11270-006-9276-x
发表时间：
2007-05
期刊：
Water, Air, and Soil Pollution
影响因子：
--
作者：
P. Herckes;Hui-qing Chang;Taehyoung Lee;J. Collett
通讯作者：
P. Herckes;Hui-qing Chang;Taehyoung Lee;J. Collett