Distributions of sulfur pollutants in East Asia |
| |
| Authors: | Hui-wang Gao Mei-yuan Huang Jun-ling An |
| |
| Institution: | (1) Institute of Physical Oceanography, Ocean University of Qingdao, 266003 Qingdao, P. R. China;(2) Institute of Atmospheric Physics, the Chinese Academy of Sciences, 100029 Beijing, P. R. China |
| |
| Abstract: | A Eulerian sulfur deposition model is used to study the distributions of sulfur pollutants in East Asia, in which important
physical and chemical processes such as transport, diffusion, dry and wet deposition, vertical transportation in cumulus cloud,
gas phase chemistry, aqueous phase chemistry and heterogeneous aerosol chemistry are included. Two cases, the periods of 1987.
07. 02 GMT00-1987-07-03 GMT00 (case 1) and 1989-04-20 GMT00-1989-04-21 GMT00 (case 2), are studied and the distributions of
SO2 and SO
4
2−
in East Asia are shown. It is revealed that the patterns of distributions of SO2 and SO
4
2−
are different under different meteorological conditions. In the upper layer, the concentrations of SO2 and SO
4
2−
are 0.4–1.0 μg/m3 and 0.2–0.5 μg/m3, 4.0–10.0 μg/m3 and 2.0–6.0 μg/m3 in the middle layer. In the surface layer, the levels of SO2 range from 4.0 to 30.0 μg/m3 and from 2.0 to 8.0 μg/m3 for SO
4
2−
. Distributions of SOx are controlled by emissions in the surface layer, while in the upper layer it is mainly affected by precipitation. The distributions
of SOx show the interaction of emissions, winds and precipitation in the middle layer.
Biography: GAO Hui-wang(1966–), male, a native of Shandong Province, Ph. D., professor. His research interests include atmospheric
environment and marine environment. |
| |
| Keywords: | sulfur pollutants deposition model East Asia sulfur distribution |
| 本文献已被 CNKI 万方数据 SpringerLink 等数据库收录！ |
|
