Seasonal variations of sulfur aerosols at Zhongshan Station, East Antarctica  

作　　者：ZHANG Miming CHEN Liqi LIN Qi WANG Yanmin 

机构地区：[1]Key Laboratory of Global change and Marine-Atmospheric Chemistry, SOA, Third Institute of Oceanography, State Oceanic Administration

出　　处：《Advances in Polar Science》2015年第3期189-195,共7页极地科学进展（英文版）

基　　金：supported by the National Natural Science Foundation of China (NSFC) (Grant nos. 41476172, 41230529, 40671062, and 41106168);the Chinese Polar Environment Comprehensive Investigation & Assessment Programs (Grant no. CHINARE2012-15 for 01-04-02, 02-01, and 03-0402);International Cooperation Programs, Chinese Arctic and Antarctic Adminstration (Grant nos. 2G22010, IC201201, IC201308, and IC201513)

摘　　要：Observations of atmospheric methane-sulfonic acid（MSA） and non-sea-salt sulfate（nss-SO4^2-） from December 2010 to November 2011 at Zhongshan Station are presented in this paper. MSA and nss-SO4^2- average concentrations were 24.2 ± 37.9 ng·m^-3（0.5-158.3 ng·m^-3） and 53.0 ± 82.6 ng·m^-3（not detected [n.d.]） - 395.4 ng·m^-3）, respectively. Strong seasonal variations of MSA and nss-SO4^2-, with maxima in austral summer and minima in winter, were examined. The high concentrations of sulfur compounds in December may be attributed the dimethyl sulfide（DMS） emissions from the marginal ice zone, when open water near the sampling site was important in impacting the sulfur species of January and February at Zhongshan Station. In austral winter, there was almost no phytoplanktonic activity in offshore waters, and atmospheric sulfur compounds likely had long-range transport sources.Observations of atmospheric methane-sulfonic acid（MSA） and non-sea-salt sulfate（nss-SO4^2-） from December 2010 to November 2011 at Zhongshan Station are presented in this paper. MSA and nss-SO4^2- average concentrations were 24.2 ± 37.9 ng·m^-3（0.5-158.3 ng·m^-3） and 53.0 ± 82.6 ng·m^-3（not detected [n.d.]） - 395.4 ng·m^-3）, respectively. Strong seasonal variations of MSA and nss-SO4^2-, with maxima in austral summer and minima in winter, were examined. The high concentrations of sulfur compounds in December may be attributed the dimethyl sulfide（DMS） emissions from the marginal ice zone, when open water near the sampling site was important in impacting the sulfur species of January and February at Zhongshan Station. In austral winter, there was almost no phytoplanktonic activity in offshore waters, and atmospheric sulfur compounds likely had long-range transport sources.

关 键 词：MSA nss-SO4^2- seasonal variations East Antarctica Zhongshan Station 

分 类 号：X513[环境科学与工程—环境工程]