Chemical composition and source apportionment of Toronto summertime urban fine aerosol (PM2.5)

被引：8
|
作者：
Tsai, J [1 ]
Owega, S [1 ]
Evans, G [1 ]
Jervis, R [1 ]
Fila, M [1 ]
Tan, P [1 ]
Malpica, O [1 ]
机构：
[1] Univ Toronto, Dept Chem Engn & Appl Sci, Toronto, ON M5S 3E5, Canada
来源：
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2004年 / 259卷 / 01期
关键词：
D O I：
10.1023/B:JRNC.0000015828.93105.ac
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Summertime urban PM2.5 was collected on cellulose filters in downtown Toronto, using a customized air sampler (635 l/min). Mass concentrations for up to 19 trace elements/ions were measured by ICP-AES, INAA and IC. Source apportionment was performed on these results including additional carbon and total mass concentrations using positive matrix factorization (PMF). PMF factors exhibited trends that indicated soil (18%), stationary (19%), secondary (48%), and vehicle (15%) sources. Potential source contribution function (PSCF) analysis identified probable sources of the stationary and secondary PM2.5 as originating from the south and southwest of Toronto.
引用
收藏
页码：193 / 197
页数：5
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