共 8 条
广州市大气细粒子的化学组成与来源
被引:25
作者:

陈灿云
论文数: 0 引用数: 0
h-index: 0
机构:
佛山市南海区环境监测站 佛山市南海区环境监测站

梁高亮
论文数: 0 引用数: 0
h-index: 0
机构:
佛山市南海区环境监测站 佛山市南海区环境监测站

论文数: 引用数:
h-index:
机构:
机构:
[1] 佛山市南海区环境监测站
[2] 中国科学院广州地球化学研究所
来源:
关键词:
PM2.5;
化学组成;
化学质量平衡模型;
D O I:
10.19316/j.issn.1002-6002.2006.05.017
中图分类号:
X513 [粒状污染物];
学科分类号:
0706 ;
070602 ;
摘要:
对广州市四个不同功能区(石井、荔湾、天河和海珠)的夏季大气PM2.5进行了为期一个月的监测,并测试分析了其化学组成(有机碳/元素碳、水溶性离子和元素)。结果表明,广州市夏季PM2.5的平均浓度为97.54μg/m3,其化学组分有机物、SO42-和EC对PM2.5质量浓度贡献最大,分别占PM2.5质量浓度的42%52%、25%47%和10%17%。化学质量平衡模型研究表明,机动车排放和煤燃烧是对广州市大气PM2.5影响最大的污染源,其贡献率分别为54%75%和32%52%。
引用
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页码:61 / 64
页数:4
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