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Article: Using daily excessive concentration hours to explore the short-term mortality effects of ambient PM 2.5 in Hong Kong

TitleUsing daily excessive concentration hours to explore the short-term mortality effects of ambient PM 2.5 in Hong Kong
Authors
Issue Date2017
PublisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/envpol
Citation
Environmental Pollution, 2017, v. 229, p. 896-901 How to Cite?
AbstractWe developed a novel indicator, daily excessive concentration hours (DECH), to explore the acute mortality impacts of ambient fine particulate matter pollution (PM2.5) in Hong Kong. The DECH of PM2.5 was calculated as daily concentration-hours >25 μg/m3. We applied a generalized additive models to quantify the association between DECH and mortality with adjustment for potential confounders. The results showed that the DECH was significantly associated with mortality. The excess mortality risk for an interquartile range (565 μg/m3*hours) increase in DECH of PM2.5 was 1.65% (95% CI: 1.05%, 2.26%) for all natural mortality at lag 02 day, 2.01% (95% CI: 0.82%, 3.21%) for cardiovascular mortality at lag 03 days, and 1.41% (95% CI: 0.34%, 2.49%) for respiratory mortality at lag 2 day. The associations remained consistent after adjustment for gaseous air pollutants (daily mean concentration of SO2, NO2 and O3) and in alternative model specifications. When compared to the mortality burden of daily mean PM2.5, DECH was found to be a relatively conservative indicator. This study adds to the evidence by showing that daily excessive concentration hours of PM2.5 might be a new predictor of mortality in Hong Kong.
Persistent Identifierhttp://hdl.handle.net/10722/244557
ISSN
2019 Impact Factor: 6.792
2015 SCImago Journal Rankings: 2.045
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorLin, H-
dc.contributor.authorMa, W-
dc.contributor.authorQiu, H-
dc.contributor.authorWang, X-
dc.contributor.authorTrevathan, E-
dc.contributor.authorYao, Z-
dc.contributor.authorDong, GH-
dc.contributor.authorVaughn, MG-
dc.contributor.authorQian, Z-
dc.contributor.authorTian, L-
dc.date.accessioned2017-09-18T01:54:40Z-
dc.date.available2017-09-18T01:54:40Z-
dc.date.issued2017-
dc.identifier.citationEnvironmental Pollution, 2017, v. 229, p. 896-901-
dc.identifier.issn0269-7491-
dc.identifier.urihttp://hdl.handle.net/10722/244557-
dc.description.abstractWe developed a novel indicator, daily excessive concentration hours (DECH), to explore the acute mortality impacts of ambient fine particulate matter pollution (PM2.5) in Hong Kong. The DECH of PM2.5 was calculated as daily concentration-hours >25 μg/m3. We applied a generalized additive models to quantify the association between DECH and mortality with adjustment for potential confounders. The results showed that the DECH was significantly associated with mortality. The excess mortality risk for an interquartile range (565 μg/m3*hours) increase in DECH of PM2.5 was 1.65% (95% CI: 1.05%, 2.26%) for all natural mortality at lag 02 day, 2.01% (95% CI: 0.82%, 3.21%) for cardiovascular mortality at lag 03 days, and 1.41% (95% CI: 0.34%, 2.49%) for respiratory mortality at lag 2 day. The associations remained consistent after adjustment for gaseous air pollutants (daily mean concentration of SO2, NO2 and O3) and in alternative model specifications. When compared to the mortality burden of daily mean PM2.5, DECH was found to be a relatively conservative indicator. This study adds to the evidence by showing that daily excessive concentration hours of PM2.5 might be a new predictor of mortality in Hong Kong.-
dc.languageeng-
dc.publisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/envpol-
dc.relation.ispartofEnvironmental Pollution-
dc.rightsThis work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.-
dc.titleUsing daily excessive concentration hours to explore the short-term mortality effects of ambient PM 2.5 in Hong Kong-
dc.typeArticle-
dc.identifier.emailQiu, H: qiuhong@hku.hk-
dc.identifier.emailTian, L: linweit@hku.hk-
dc.identifier.authorityTian, L=rp01991-
dc.description.naturepostprint-
dc.identifier.doi10.1016/j.envpol.2017.07.060-
dc.identifier.scopuseid_2-s2.0-85026450421-
dc.identifier.hkuros276977-
dc.identifier.volume229-
dc.identifier.spage896-
dc.identifier.epage901-
dc.identifier.isiWOS:000410010200094-
dc.publisher.placeUnited Kingdom-

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