Sources of atmospheric carbonaceous particulate matter in Pittsburgh, Pennsylvania

被引：81
作者：
Cabada, JC
Pandis, SN
Robinson, AL
机构：
[1] Carnegie Mellon Univ, Dept Chem Engn, Pittsburgh, PA 15213 USA
[2] Carnegie Mellon Univ, Dept Mech Engn, Pittsburgh, PA 15213 USA
来源：
JOURNAL OF THE AIR & WASTE MANAGEMENT ASSOCIATION | 2002年 / 52卷 / 06期
关键词：
D O I：
10.1080/10473289.2002.10470811
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The organic carbon (OC)/elemental carbon (EC) tracer method is applied to the Pittsburgh, PA, area to estimate the contribution of secondary organic aerosol (SOA) to the monthly average concentration of organic particulate matter (PM) during 1995. An emissions inventory is constructed for the primary emissions of OC and EC in the area of interest. The ratio of primary emissions of OC to those of EC ranges between 2.4 in the winter months and 1.0 in the summer months. A mass balance model and ambient measurements were used to assess the accuracy of the emissions inventory. It is estimated to be accurate to within 50%. The results from this analysis show a strong monthly dependence of the SOA contribution to the total organic PM concentration, varying from near zero during winter months to as much as 50% of the total OC concentration in the summer.
引用
收藏
页码：732 / 741
页数：10
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