Hygroscopic growth of urban aerosol particles during the 2009 Mirage-Shanghai Campaign
Hygroscopic growth of urban aerosol particles during the 2009 Mirage-Shanghai Campaign
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2009年幻影-上海战役期间城市气溶胶颗粒的吸湿生长
DOI:
10.1016/j.atmosenv.2012.09.064
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发表时间:
2013
影响因子:
5
通讯作者:
Geng, Fuhai
中科院分区:
文献类型:
--
作者:
Ye, Xingnan;Tang, Chen;Yin, Zi;Chen, Jianmin;Ma, Zhen;Kong, Lingdong;Yang, Xin;Gao, Wei;Geng, Fuhai
The hygroscopic properties of submicrometer urban aerosol particles were studied during the 2009 Mirage-Shanghai Campaign. The urban aerosols were composed of more-hygroscopic and nearly-hydrophobic particles, together with a trace of less-hygroscopic particles. The mean hygroscopicity parameter κ of the more-hygroscopic mode varied in the range of 0.27–0.39 depending on particle size. The relative abundance of the more-hygroscopic particles at any size was ca. 70%, slightly increasing with particle size. The number fraction of the nearly-hydrophobic particles fluctuated between 0.1 and 0.4 daily, in accordance with traffic emissions and atmospheric diffusion. The results from relative humidity dependence on hygroscopic growth and chemical analysis of fine particles indicated that particulate nitrate formation through the homogenous gas-phase reaction was suppressed under ammonia-deficient atmosphere in summer whereas the equilibrium was broken by more available NH3during adverse meteorological conditions.
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影响因子:
5.5
作者:
Ye, Xingnan;Ma, Zhen;Hu, Dawei;Yang, Xin;Chen, Jianmin
通讯作者:
Chen, Jianmin
影响因子:
11.4
作者:
Chong Qiu;Renyi Zhang
通讯作者:
Chong Qiu;Renyi Zhang
影响因子:
6.3
作者:
Fors, E. O.;Swietlicki, E.;Sporre, M.
通讯作者:
Sporre, M.
影响因子:
6.3
作者:
Liu, P. F.;Zhao, C. S.;Wiedensohler, A.
通讯作者:
Wiedensohler, A.
影响因子:
6.3
作者:
A. Virtanen;T. Rönkkö;J. Kannosto;J. Ristimäki;J. Mäkelä;J. Keskinen;T. Pakkanen;R. Hillamo;L. Pirjola;K. Hämeri
通讯作者:
A. Virtanen;T. Rönkkö;J. Kannosto;J. Ristimäki;J. Mäkelä;J. Keskinen;T. Pakkanen;R. Hillamo;L. Pirjola;K. Hämeri