9
IRUS Total
Downloads
  Altmetric

A chemical investigation of household solid fuel use and outdoor air pollution contributions to personal PM2.5 exposures

File Description SizeFormat 
acs.est.1c01368.pdfPublished version1.96 MBAdobe PDFView/Open
Title: A chemical investigation of household solid fuel use and outdoor air pollution contributions to personal PM2.5 exposures
Authors: Lai, A
Lee, M
Carter, E
Chan, Q
Elliott, P
Ezzati, M
Yan, L
Wu, Y
Yang, X
Zhao, L
Baumgartner, J
Schauer, J
Item Type: Journal Article
Abstract: In communities with household solid fuel use, transitioning to clean stoves/fuels often results in only moderate reductions in fine particulate matter (PM2.5) exposures; the chemical composition of those exposures may help explain why. We collected personal exposure (men and women) and outdoor PM2.5 samples in villages in three Chinese provinces (Shanxi, Beijing, and Guangxi) and measured chemical components, including water-soluble organic carbon (WSOC), ions, elements, and organic tracers. Source contributions from chemical mass balance modeling (biomass burning, coal combustion, vehicles, dust, and secondary inorganic aerosol) were similar between outdoor and personal PM2.5 samples. Principal component analysis of organic and inorganic components identified analogous sources, including a regional ambient source. Chemical components of PM2.5 exposures did not differ significantly by gender. Participants using coal had higher personal/outdoor (P/O) ratios of coal combustion tracers (picene, sulfate, As, and Pb) than those not using coal, but no such trend was observed for biomass burning tracers (levoglucosan, K+, WSOC). Picene and most levoglucosan P/O ratios exceeded 1 even among participants not using coal and biomass, respectively, indicating substantial indirect exposure to solid fuel emissions from other homes. Contributions of community-level emissions to exposures suggest that meaningful exposure reductions will likely require extensive fuel use changes within communities.
Issue Date: 24-Nov-2021
Date of Acceptance: 10-Nov-2021
URI: http://hdl.handle.net/10044/1/92894
DOI: 10.1021/acs.est.1c01368
ISSN: 0013-936X
Publisher: American Chemical Society
Start Page: 15969
End Page: 15979
Journal / Book Title: Environmental Science and Technology (Washington)
Volume: 55
Issue: 23
Copyright Statement: © 2021 The Authors. Published by American Chemical Society. This work is published under CC BY 4.0 International license.
Sponsor/Funder: Wellcome Trust
MRC-PHE Centre for Environment and Health, Imperial College London, UK
Funder's Grant Number: 103906/Z/14/Z
Pump-Priming Project
Keywords: PM2.5
household air pollution
molecular tracers
personal exposure
personal/outdoor ratio
solid fuels
source apportionment
Environmental Sciences
Publication Status: Published
Online Publication Date: 2021-11-15
Appears in Collections:School of Public Health



This item is licensed under a Creative Commons License Creative Commons