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Article: Effect of air pollution on daily mortality in Hong Kong
Title | Effect of air pollution on daily mortality in Hong Kong |
---|---|
Authors | |
Keywords | Air pollutant concentrations Daily mortality Exposure-response Offset Stratification by seasons |
Issue Date | 2001 |
Publisher | US Department of Health and Human Services, National Institute of Environmental Health Sciences. The Journal's web site is located at http://ehp.niehs.nih.gov/ |
Citation | Environmental Health Perspectives, 2001, v. 109 n. 4, p. 335-340 How to Cite? |
Abstract | In different weather conditions, constituents and concentrations of pollutants, personal exposure, and biologic responses to air pollution may vary. In this study we assessed the effects of four air pollutants on mortality in both cool and warm seasons in Hong Kong, a subtropical city. Daily counts of mortality, due to all nonaccidental causes, and cardiovascular and respiratory diseases were modeled with daily pollutant concentrations [24-hr means for nitrogen dioxide, sulfur dioxide, and particulate matter < 10 μm in aerodynamic diameter (PM10); 8-hr mean for ozone]. using Poisson regression. We controlled for confounding factors by fitting the terms in models, in line with those recommended by the APHEA (Air Pollution and Health: a European Approach) protocol. Exposure-response relationships in warm and cool seasons were examined using generalized additive modeling. During the cool season, for a linear extrapolation of 10th-90th percentiles in the pollutant concentrations of all oxidant pollutants, NO2, SO2, and O3, we found significant effects on all the mortality outcomes under study, with relative risks (RR) of 1.04-1.10 (p < 0.038, except p = 0.079 for SO2 on respiratory mortality). We observed consistent positive exposure-response relationships during the cool season but not during the warm season. The effects of PM10 were marginally significant (RR = 1.06; p = 0.054) for respiratory mortality but not for the other outcomes (p > 0.135). In this subtropical city, local air quality objectives should take into account that air pollution has stronger health effects during the cool rather than warm season and that oxidant pollutants are more important indicators of health effects than particulates. |
Persistent Identifier | http://hdl.handle.net/10722/49371 |
ISSN | 2023 Impact Factor: 10.1 2023 SCImago Journal Rankings: 2.525 |
PubMed Central ID | |
ISI Accession Number ID | |
References |
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Wong, CM | en_HK |
dc.contributor.author | Ma, S | en_HK |
dc.contributor.author | Hedley, AJ | en_HK |
dc.contributor.author | Lam, TH | en_HK |
dc.date.accessioned | 2008-06-12T06:40:42Z | - |
dc.date.available | 2008-06-12T06:40:42Z | - |
dc.date.issued | 2001 | en_HK |
dc.identifier.citation | Environmental Health Perspectives, 2001, v. 109 n. 4, p. 335-340 | en_HK |
dc.identifier.issn | 0091-6765 | en_HK |
dc.identifier.uri | http://hdl.handle.net/10722/49371 | - |
dc.description.abstract | In different weather conditions, constituents and concentrations of pollutants, personal exposure, and biologic responses to air pollution may vary. In this study we assessed the effects of four air pollutants on mortality in both cool and warm seasons in Hong Kong, a subtropical city. Daily counts of mortality, due to all nonaccidental causes, and cardiovascular and respiratory diseases were modeled with daily pollutant concentrations [24-hr means for nitrogen dioxide, sulfur dioxide, and particulate matter < 10 μm in aerodynamic diameter (PM10); 8-hr mean for ozone]. using Poisson regression. We controlled for confounding factors by fitting the terms in models, in line with those recommended by the APHEA (Air Pollution and Health: a European Approach) protocol. Exposure-response relationships in warm and cool seasons were examined using generalized additive modeling. During the cool season, for a linear extrapolation of 10th-90th percentiles in the pollutant concentrations of all oxidant pollutants, NO2, SO2, and O3, we found significant effects on all the mortality outcomes under study, with relative risks (RR) of 1.04-1.10 (p < 0.038, except p = 0.079 for SO2 on respiratory mortality). We observed consistent positive exposure-response relationships during the cool season but not during the warm season. The effects of PM10 were marginally significant (RR = 1.06; p = 0.054) for respiratory mortality but not for the other outcomes (p > 0.135). In this subtropical city, local air quality objectives should take into account that air pollution has stronger health effects during the cool rather than warm season and that oxidant pollutants are more important indicators of health effects than particulates. | en_HK |
dc.format.extent | 388 bytes | - |
dc.format.mimetype | text/html | - |
dc.language | eng | en_HK |
dc.publisher | US Department of Health and Human Services, National Institute of Environmental Health Sciences. The Journal's web site is located at http://ehp.niehs.nih.gov/ | en_HK |
dc.relation.ispartof | Environmental Health Perspectives | en_HK |
dc.subject | Air pollutant concentrations | en_HK |
dc.subject | Daily mortality | en_HK |
dc.subject | Exposure-response | en_HK |
dc.subject | Offset | en_HK |
dc.subject | Stratification by seasons | en_HK |
dc.subject.mesh | Air Pollutants - adverse effects | en_HK |
dc.subject.mesh | Environmental Exposure | en_HK |
dc.subject.mesh | Mortality - trends | en_HK |
dc.subject.mesh | Child, Preschool | en_HK |
dc.subject.mesh | Confounding Factors (Epidemiology) | en_HK |
dc.title | Effect of air pollution on daily mortality in Hong Kong | en_HK |
dc.type | Article | en_HK |
dc.identifier.openurl | http://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0091-6765&volume=109&issue=4&spage=335&epage=340&date=2001&atitle=Effect+of+air+pollution+on+daily+mortality+in+Hong+Kong | en_HK |
dc.identifier.email | Wong, CM:hrmrwcm@hkucc.hku.hk | en_HK |
dc.identifier.email | Hedley, AJ:hrmrajh@hkucc.hku.hk | en_HK |
dc.identifier.email | Lam, TH:hrmrlth@hkucc.hku.hk | en_HK |
dc.identifier.authority | Wong, CM=rp00338 | en_HK |
dc.identifier.authority | Hedley, AJ=rp00357 | en_HK |
dc.identifier.authority | Lam, TH=rp00326 | en_HK |
dc.description.nature | published_or_final_version | en_HK |
dc.identifier.doi | 10.2307/3454891 | - |
dc.identifier.pmid | 11335180 | - |
dc.identifier.pmcid | PMC1240272 | en_HK |
dc.identifier.scopus | eid_2-s2.0-0035025289 | en_HK |
dc.identifier.hkuros | 56682 | - |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-0035025289&selection=ref&src=s&origin=recordpage | en_HK |
dc.identifier.volume | 109 | en_HK |
dc.identifier.issue | 4 | en_HK |
dc.identifier.spage | 335 | en_HK |
dc.identifier.epage | 340 | en_HK |
dc.identifier.isi | WOS:000168413600022 | - |
dc.publisher.place | United States | en_HK |
dc.identifier.scopusauthorid | Wong, CM=7404954904 | en_HK |
dc.identifier.scopusauthorid | Ma, S=24477737900 | en_HK |
dc.identifier.scopusauthorid | Hedley, AJ=7102584095 | en_HK |
dc.identifier.scopusauthorid | Lam, TH=7202522876 | en_HK |
dc.identifier.issnl | 0091-6765 | - |