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Title: Identifying dominant sources of respirable suspended particulates in Guangzhou, China

Abstract

Respirable suspended particulates (RSP, i.e., particles with an aerodynamic diameter of 10 {mu} m or less) were measured in 2004 and 2005 at seven sites in the rapidly developing Guangzhou area of China. The average RSP concentration was 126 {mu} g m{sup -3}, a high level that could be very harmful to human health. The chemical species composition of the RSP, including organic and elemental carbon, water-soluble ions, and elemental compositions, was also analyzed. The organics and sulfate may be the major components of RSP mass concentrations. Positive matrix factorization (PMF) was used to identify the sources of RSP as secondary sulfates (32%), secondary nitrates (6%), biomass burning (15%), coal fly ash/cement (18%), sea salt (3%), crustal dust (5%), vehicle exhaust (6%), and coal-fired power plants (3%). Reducing coal combustion and controlling vehicle emissions would alleviate RSP pollution, as most of the precursors were components of coal burning emissions and vehicular exhaust.

Authors:
; ; ; ; ; ;  [1]
  1. Peking University, Beijing (China). Dept. for Environmental Science
Publication Date:
OSTI Identifier:
21107508
Resource Type:
Journal Article
Journal Name:
Environmental Engineering Science
Additional Journal Information:
Journal Volume: 25; Journal Issue: 7; Journal ID: ISSN 1092-8758
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; PARTICULATES; CHINA; CHEMICAL COMPOSITION; POLLUTION SOURCES; AIR POLLUTION; SULFATES; NITRATES; BIOMASS; COAL; FLY ASH; EXHAUST GASES; VEHICLES; FOSSIL-FUEL POWER PLANTS; HEALTH HAZARDS

Citation Formats

Song, Y, Dai, W, Wang, X S, Cui, M M, Su, H, Xie, S D, and Zhang, Y H. Identifying dominant sources of respirable suspended particulates in Guangzhou, China. United States: N. p., 2008. Web. doi:10.1089/ees.2007.0146.
Song, Y, Dai, W, Wang, X S, Cui, M M, Su, H, Xie, S D, & Zhang, Y H. Identifying dominant sources of respirable suspended particulates in Guangzhou, China. United States. https://doi.org/10.1089/ees.2007.0146
Song, Y, Dai, W, Wang, X S, Cui, M M, Su, H, Xie, S D, and Zhang, Y H. 2008. "Identifying dominant sources of respirable suspended particulates in Guangzhou, China". United States. https://doi.org/10.1089/ees.2007.0146.
@article{osti_21107508,
title = {Identifying dominant sources of respirable suspended particulates in Guangzhou, China},
author = {Song, Y and Dai, W and Wang, X S and Cui, M M and Su, H and Xie, S D and Zhang, Y H},
abstractNote = {Respirable suspended particulates (RSP, i.e., particles with an aerodynamic diameter of 10 {mu} m or less) were measured in 2004 and 2005 at seven sites in the rapidly developing Guangzhou area of China. The average RSP concentration was 126 {mu} g m{sup -3}, a high level that could be very harmful to human health. The chemical species composition of the RSP, including organic and elemental carbon, water-soluble ions, and elemental compositions, was also analyzed. The organics and sulfate may be the major components of RSP mass concentrations. Positive matrix factorization (PMF) was used to identify the sources of RSP as secondary sulfates (32%), secondary nitrates (6%), biomass burning (15%), coal fly ash/cement (18%), sea salt (3%), crustal dust (5%), vehicle exhaust (6%), and coal-fired power plants (3%). Reducing coal combustion and controlling vehicle emissions would alleviate RSP pollution, as most of the precursors were components of coal burning emissions and vehicular exhaust.},
doi = {10.1089/ees.2007.0146},
url = {https://www.osti.gov/biblio/21107508}, journal = {Environmental Engineering Science},
issn = {1092-8758},
number = 7,
volume = 25,
place = {United States},
year = {Mon Sep 15 00:00:00 EDT 2008},
month = {Mon Sep 15 00:00:00 EDT 2008}
}