%0 Journal Article
%T Concentration analysis of atmospheric particulate matter under typical spring weather condition in Chongqing<br>重庆主城区春季典型天气的大气颗粒物浓度变化分析
%A Li Li
%A Yu Jiayan
%A Bao Lei
%A Zhai Chongzhi
%A <br>李礼
%A 余家燕
%A 鲍雷
%A 翟崇治
%J 环境工程学报
%D 2012
%I 
%X Using the real-time monitoring data of atmospheric particulate matter under typical weather at the atmosphere observation super station of Chongqing in spring 2010,a comparison of PM10 monitoring data from two methods: β-ray absorption and micro-libration(TEOM) was made.Then concentration correlation of PM10,PM2.5 and PM1 was analyzed,and the number concentration as a function of distribution of particles smaller than 10 μm was investigated.The results showed that PM10 monitoring data from two methods-β-ray absorption and TEOM were in well agreement,and the former was 5.4% lower than TEOM.Number concentration of PM2.5,PM1 and PM0.5 accounted for more than 98% of PM10.Average number concentration of PM0.25 accounted for 34.9% of PM10 and accounted for 35.1% of PM1.24 hours’ average mass concentration of PM2.5 accounted for 51.2% of PM10 monitored by TEOM.By β-ray absorption method,24 hours’ average mass concentration of PM2.5 and PM1 accounted for 56.9% and 30.9% of PM10,respectively.
%K particulate matter
%K mass concentration
%K number concentration
%K β-ray method
%K oscillation balance method<br>颗粒物
%K 质量浓度
%K 数浓度
%K β射线法
%K 震荡天平法
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=92E6F4267FD4CBCB51B1E49E014D8054&jid=3567BD61129AA59043F5DE01F8815DB5&aid=4561954BE0A0F99D9EB6C64CD5FC6454&yid=99E9153A83D4CB11&vid=B31275AF3241DB2D&iid=B31275AF3241DB2D&sid=99E9153A83D4CB11&eid=9F915C6F01DE79C5&journal_id=1673-9108&journal_name=环境工程学报&referenced_num=0&reference_num=0