北京大气中PM2.5及其碳组分季节变化特征与来源

被引:19
作者
周家茂 [1 ]
曹军骥 [1 ]
张仁健 [2 ]
机构
[1] 中国科学院地球环境研究所黄土与第四纪国家重点实验室
[2] 中国科学院大气物理研究所
关键词
PM2.5; OC; EC; 来源; 北京;
D O I
暂无
中图分类号
X513 [粒状污染物];
学科分类号
摘要
于2006年在北京开展大气细粒子(PM2.5)的连续近地面观测,获得了PM2.5质量浓度及其碳组分季节变化规律,并分析其可能影响原因;PM2.5年均质量浓度为176.57±100.29μg/m3,春季沙尘和大风引起的局地扬尘对PM2.5质量浓度有很大的贡献.OC,EC组分及其相关性均有显著的季节变化,可能与各个季节主导排放源的不同以及气象条件的差异有关.
引用
收藏
页码:248 / 252
页数:5
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