Cited by 190Air Quality and Health ImpactsClimate Change and Health ImpactsIndoor Air Quality and Microbial Exposure

Estimated acute effects of ambient ozone and nitrogen dioxide on mortality in the Pearl River Delta of Southern China

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Tao, Yebin, Huang, Wei, Huang, Xiaoliang, Zhong, Liuju, Lu, Shou-En, Li, Yi, Dai, Lingzhen, Zhang, Yuanhang +1 more·2012·Environmental Health Perspectives

Abstract

BACKGROUND AND OBJECTIVES: Epidemiologic studies have attributed adverse health effects to air pollution; however, controversy remains regarding the relationship between ambient oxidants [ozone (O₃) and nitrogen dioxide (NO₂)] and mortality, especially in Asia. We conducted a four-city time-series study to investigate acute effects of O₃ and NO₂ in the Pearl River Delta (PRD) of southern China, using data from 2006 through 2008. METHODS: We used generalized linear models with Poisson regression incorporating natural spline functions to analyze acute mortality in association with O₃ and NO₂, with PM₁₀ (particulate matter ≤ 10 μm in diameter) included as a major confounder. Effect estimates were determined for individual cities and for the four cities as a whole. We stratified the analysis according to high- and low- exposure periods for O₃. RESULTS: We found consistent positive associations between ambient oxidants and daily mortality across the PRD cities. Overall, 10-μg/m³ increases in average O₃ and NO₂ concentrations over the previous 2 days were associated with 0.81% [95% confidence interval (CI): 0.63%, 1.00%] and 1.95% (95% CI: 1.62%, 2.29%) increases in total mortality, respectively, with stronger estimated effects for cardiovascular and respiratory mortality. After adjusting for PM₁₀, estimated effects of O₃ on total and cardiovascular mortality were stronger for exposure during high-exposure months (September through November), whereas respiratory mortality was associated with O₃ exposure during nonpeak exposure months only. CONCLUSIONS: Our findings suggest significant acute mortality effects of O₃ and NO₂ in the PRD and strengthen the rationale for further limiting the ambient pollution levels in the area.

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  1. HEI (Health Effects Institute) 2010a Outdoor Air Pollution and Health in the Developing Countries of Asia: A Comprehensive Review. HEI Special Report 18 Boston, MA HEI

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Authors
Tao, Y., Huang, W., Huang, X., Zhong, L., Lu, S.-E., Li, Y., Dai, L., Zhang, Y., & Zhu, T.
Affiliations
  • Peking University (CN)
  • Consensus Information Center, Guangdong Provincial Bureau of Hygiene, Guangzhou, China
  • Guangdong Province Environmental Monitoring Center (CN)
  • University of Medicine and Dentistry of New Jersey (US)
  • Chinese Academy of Meteorological Sciences (CN)
Corresponding author
  • Huang, Wei
  • Huang, Xiaoliang
Venue
Environmental Health Perspectives
Published
2011-12-08
Volume
120
Issue
3
Pages
393-398
ISSN
  • 0091-6765 (ISSN-L)
  • 1552-9924
OpenAlex
W2012403623
Cited by
190
References
48
Citations by year
2026: 6 · 2025: 7 · 2024: 7 · 2023: 14 · 2022: 29 · 2021: 13 · 2020: 20 · 2019: 19 · 2018: 18 · 2017: 14 · 2016: 14 · 2015: 7 · 2014: 7 · 2013: 13 · 2012: 1
FWCI
4.86
Type
journal article
Language
en
Open access
Locations
  • Environmental Health Perspectives (publishedVersion, public-domain)
  • Europe PMC (PubMed Central) (publishedVersion, public-domain)
  • PubMed Central (publishedVersion, public-domain)
  • PubMed (publishedVersion)
Funders
  • National Science Foundation
  • Ministry of Science and Technology of the People's Republic of China (2008AA062503)
Topics
  • Physical Sciences › Environmental Science › Health, Toxicology and Mutagenesis › Air Quality and Health Impacts
  • Physical Sciences › Environmental Science › Health, Toxicology and Mutagenesis › Climate Change and Health Impacts
  • Physical Sciences › Environmental Science › Health, Toxicology and Mutagenesis › Indoor Air Quality and Microbial Exposure
Keywords
ambient ozone, nitrogen dioxide, acute mortality, air pollution health effects, oxidant exposure, cardiovascular mortality, respiratory mortality, Pearl River Delta
MeSH terms
Cardiovascular Diseases, China, Cities, Female, Humans, Male, Nitrogen Dioxide, Oxidants, Photochemical, Ozone, Respiratory Tract Diseases, Time Factors, Linear Models, Particulate Matter

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