Characterisation and source apportionment of fine particulate sources at Hanoi from 2001 to 2008

被引：136

作者：

Cohen, David D. ^{[1
]}

Crawford, Jagoda ^{[1
]}

Stelcer, Eduard ^{[1
]}

Bac, Vuong Thu ^{[2
]}

机构：

[1] Australian Nucl Sci & Technol Org, Menai, NSW 2234, Australia

[2] Inst Nucl Sci & Technol, Hanoi, Vietnam

来源：

ATMOSPHERIC ENVIRONMENT | 2010年 / 44卷 / 03期

关键词：

Ion beam analysis; PMF; Fine particles; PM(2.5); Air pollution sources; Hanoi; ATMOSPHERIC-POLLUTION; PARTICLE POLLUTION; IBA TECHNIQUES; UNITED-STATES; PM2.5; VIETNAM; PMF; AEROSOL; PIXE;

D O I：

10.1016/j.atmosenv.2009.10.037

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

PM(2.5) particulate matter has been collected on Teflon filters every Sunday and Wednesday at Hanoi. Vietnam for nearly eight years from April 2001 to December 2008. These filters have been analysed for over 21 different chemical species from hydrogen to lead by ion beam analysis techniques. This is the first long term PM(2.5) dataset for this region. The average PM(2.5) mass for the study period was (54 +/- 33) mu g m(-3), well above the current US EPA health goal of 15 mu g m(-3). The average PM(2.5) composition was found to be (29 +/- 8)% ammonium sulfate, (8.9 +/- 3.3)% soil, (28 +/- 11)% organic matter, (0.6 +/- 1.4)% salt and (9.2 +/- 2.8)% black carbon. The remaining missing mass (25%) was mainly nitrates and absorbed water. Positive matrix factorisation techniques identified the major source contributions to the fine mass as automobiles and transport (40 +/- 10)%, windblown soil (3.4 +/- 2)%, secondary sulfates (7.8 +/- 10)%, smoke from biomass burning (13 +/- 6)%, ferrous and cement industries (19 +/- 8)%, and coal combustion (17 +/- 7)% during the 8 year study period. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：320 / 328

页数：9

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