%0 Journal Article
%T An estimate on the rainout of atmospheric CO2
%A Liu Chun-jiang
%A Ilvesniemi Hannu
%A Kutsch Werner
%A Ma Xiang-qing
%A Westman Carl J
%A Kauppi Pekka
%A <br>Liu CJ
%A Ilvesniemi H
%A Kutsch W
%A Ma XQ
%A Westman CJ
%A Kauppi P
%J 环境科学学报(英文版)
%D 2004
%I 
%X The CO2 in the atmosphere is in contact with water vapor and rain droplets forming CO2 x H2O, HCO3- and CO3(2-) . Global precipitation is about 505 x 1015 kg/a. Based on theoretical calculation for unpolluted air and measurement observations, we estimated that 100-270 x 10(12) gC/a are scavenged from the air by global precipitation. This roughly equals carbon emissions from volcanic sources or 2-6 per cent of current CO2 emissions. An inventory-based estimate on carbon removal in northwestern Europe supports the above calculation on global scale. With increasing CO2 concentration in the air, precipitation scavenging may increase.
%K atmospheric CO_2
%K dissolution
%K dissociation
%K precipitation scavenging
%K rainwater<br>大气评价
%K 二氧化碳
%K 酸雨
%K 快速净化
%K 大气污染
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=6CB1530875F53489BF1E81BD87B7F5E6&aid=C7D278C1A5EB76FED1E918438C4439EA&yid=D0E58B75BFD8E51C&vid=7801E6FC5AE9020C&iid=CA4FD0336C81A37A&sid=7AA74D31F1FF2DCE&eid=CFAC5CB624A41AFD&journal_id=1001-0742&journal_name=Journalofenvironmentalsciences(China)&referenced_num=0&reference_num=32