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Air Pollution and Mortality in Chile: Susceptibility among the Elderly
OBJECTIVE: The estimated mortality rate associated with ambient air pollution based on general population studies may not be representative of the effects on certain subgroups. The objective of the present study was to determine the influence of relatively high concentrations of air pollution on mor...
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Formato: | Texto |
Lenguaje: | English |
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National Institute of Environmental Health Sciences
2007
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1852651/ https://www.ncbi.nlm.nih.gov/pubmed/17450219 http://dx.doi.org/10.1289/ehp.9567 |
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author | Cakmak, Sabit Dales, Robert E. Vidal, Claudia Blanco |
author_facet | Cakmak, Sabit Dales, Robert E. Vidal, Claudia Blanco |
author_sort | Cakmak, Sabit |
collection | PubMed |
description | OBJECTIVE: The estimated mortality rate associated with ambient air pollution based on general population studies may not be representative of the effects on certain subgroups. The objective of the present study was to determine the influence of relatively high concentrations of air pollution on mortality in a general population sample and in the very elderly. STUDY DESIGN: Daily time-series analyses tested the association between daily air pollution and daily mortality in seven Chilean urban centers during 1997–2003. Results were adjusted for day of the week and humidex. RESULTS: Daily averaged particulate matter with aerodynamic matter < 10 μm (PM(10)) was 84.88 μg/m(3), sulfur dioxide was 14.08ppb, and carbon monoxide was 1.29 ppb. The 1-hr maximum ozone was 100.13 ppb. The percentage increases in nonaccidental mortality associated with an increase in PM(10) equivalent to its mean were 4.53 (t-ratio 1.52) for those < 65 years and 14.03 (3.87) for those > 85 years. Respective values were 4.96 (1.17) and 8.56 (2.02) for O(3); 4.77 (2.50) and 7.92 (3.23) for SO(2); and 4.10 (2.52) and 8.58 (4.45) for CO. CONCLUSION: Our results suggest that the very elderly are particularly susceptible to dying from air pollution. Concentrations deemed acceptable for the general population may not adequately protect the very elderly. |
format | Text |
id | pubmed-1852651 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2007 |
publisher | National Institute of Environmental Health Sciences |
record_format | MEDLINE/PubMed |
spelling | pubmed-18526512007-04-20 Air Pollution and Mortality in Chile: Susceptibility among the Elderly Cakmak, Sabit Dales, Robert E. Vidal, Claudia Blanco Environ Health Perspect Research OBJECTIVE: The estimated mortality rate associated with ambient air pollution based on general population studies may not be representative of the effects on certain subgroups. The objective of the present study was to determine the influence of relatively high concentrations of air pollution on mortality in a general population sample and in the very elderly. STUDY DESIGN: Daily time-series analyses tested the association between daily air pollution and daily mortality in seven Chilean urban centers during 1997–2003. Results were adjusted for day of the week and humidex. RESULTS: Daily averaged particulate matter with aerodynamic matter < 10 μm (PM(10)) was 84.88 μg/m(3), sulfur dioxide was 14.08ppb, and carbon monoxide was 1.29 ppb. The 1-hr maximum ozone was 100.13 ppb. The percentage increases in nonaccidental mortality associated with an increase in PM(10) equivalent to its mean were 4.53 (t-ratio 1.52) for those < 65 years and 14.03 (3.87) for those > 85 years. Respective values were 4.96 (1.17) and 8.56 (2.02) for O(3); 4.77 (2.50) and 7.92 (3.23) for SO(2); and 4.10 (2.52) and 8.58 (4.45) for CO. CONCLUSION: Our results suggest that the very elderly are particularly susceptible to dying from air pollution. Concentrations deemed acceptable for the general population may not adequately protect the very elderly. National Institute of Environmental Health Sciences 2007-04 2007-01-08 /pmc/articles/PMC1852651/ /pubmed/17450219 http://dx.doi.org/10.1289/ehp.9567 Text en http://creativecommons.org/publicdomain/mark/1.0/ Publication of EHP lies in the public domain and is therefore without copyright. All text from EHP may be reprinted freely. Use of materials published in EHP should be acknowledged (for example, ?Reproduced with permission from Environmental Health Perspectives?); pertinent reference information should be provided for the article from which the material was reproduced. Articles from EHP, especially the News section, may contain photographs or illustrations copyrighted by other commercial organizations or individuals that may not be used without obtaining prior approval from the holder of the copyright. |
spellingShingle | Research Cakmak, Sabit Dales, Robert E. Vidal, Claudia Blanco Air Pollution and Mortality in Chile: Susceptibility among the Elderly |
title | Air Pollution and Mortality in Chile: Susceptibility among the Elderly |
title_full | Air Pollution and Mortality in Chile: Susceptibility among the Elderly |
title_fullStr | Air Pollution and Mortality in Chile: Susceptibility among the Elderly |
title_full_unstemmed | Air Pollution and Mortality in Chile: Susceptibility among the Elderly |
title_short | Air Pollution and Mortality in Chile: Susceptibility among the Elderly |
title_sort | air pollution and mortality in chile: susceptibility among the elderly |
topic | Research |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1852651/ https://www.ncbi.nlm.nih.gov/pubmed/17450219 http://dx.doi.org/10.1289/ehp.9567 |
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