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. 1996 Apr;50(Suppl 1):s59–s62. doi: 10.1136/jech.50.suppl_1.s59

Asthma and ambient air pollution in Helsinki.

A Pönkä 1, M Virtanen 1
PMCID: PMC1060890  PMID: 8758226

Abstract

OBJECTIVE: To study whether ambient air levels of sulphur dioxide (SO2), nitrogen dioxide (NO2), total suspended particulates (TSP), and ozone (O3) affect the number of hospital admissions for asthma. DESIGN: The associations between the daily number of admissions and air pollutants were analysed with Poisson regression, taking into account potential confounding factors by using the standardised protocol of the APHEA project. SETTING: Helsinki, Finland, 1987-89. PATIENTS AND MEASUREMENTS: Patients admitted to hospitals through emergency rooms because of asthma (n = 2421). The daily mean concentration was 13-25 micrograms/m3 for SO2, 33-41 micrograms/m3 for NO2, 19-41 micrograms/m3 for O3, and 58-109 micrograms/m3 for TSP during the different seasons. Values are means for various stations. The daily mean temperature during the three year period was +5.4 degrees C (range -37-27 degrees C). MAIN RESULTS: Positive associations with admissions were observed for O3 levels in all children under 14 years, and for SO2 levels in 15-64 year olds and among those older than 64. Significant associations were also seen between admissions for digestive tract diseases (the control) and O3 levels. This suggests that the modelling, which proved to be problematic, was unsatisfactory, or it may be a statistical coincidence. A rise in temperature was associated with a low number of admissions for asthma among 0-14 year olds and among 15-64 year olds, whereas humidity did not have a significant effect on the number of admissions. CONCLUSIONS: It is possible than even low level pollution may increase hospital admissions for asthma. However, definitive conclusions will be justified only after meta-analysis comprising several studies. The methodology was seen to have a strong effect on the results and standardised methods, possibly differing from those for the study concerning mortality, are needed to investigate the association between morbidity and ambient air pollutants.

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Selected References

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  1. Bates D. V., Baker-Anderson M., Sizto R. Asthma attack periodicity: a study of hospital emergency visits in Vancouver. Environ Res. 1990 Feb;51(1):51–70. doi: 10.1016/s0013-9351(05)80182-3. [DOI] [PubMed] [Google Scholar]
  2. Bates D. V., Sizto R. Air pollution and hospital admissions in Southern Ontario: the acid summer haze effect. Environ Res. 1987 Aug;43(2):317–331. doi: 10.1016/s0013-9351(87)80032-4. [DOI] [PubMed] [Google Scholar]
  3. Cohen A. A., Bromberg S., Buechley R. W., Heiderscheit L. T., Shy C. M. Asthma and air pollution from a coal-fueled power plant. Am J Public Health. 1972 Sep;62(9):1181–1188. doi: 10.2105/ajph.62.9.1181. [DOI] [PMC free article] [PubMed] [Google Scholar]
  4. Dockery D. W., Schwartz J., Spengler J. D. Air pollution and daily mortality: associations with particulates and acid aerosols. Environ Res. 1992 Dec;59(2):362–373. doi: 10.1016/s0013-9351(05)80042-8. [DOI] [PubMed] [Google Scholar]
  5. Goldstein I. F., Weinstein A. L. Air pollution and asthma: effects of exposures to short-term sulfur dioxide peaks. Environ Res. 1986 Aug;40(2):332–345. doi: 10.1016/s0013-9351(86)80108-6. [DOI] [PubMed] [Google Scholar]
  6. Katsouyanni K., Zmirou D., Spix C., Sunyer J., Schouten J. P., Pönkä A., Anderson H. R., Le Moullec Y., Wojtyniak B., Vigotti M. A. Short-term effects of air pollution on health: a European approach using epidemiological time-series data. The APHEA project: background, objectives, design. Eur Respir J. 1995 Jun;8(6):1030–1038. [PubMed] [Google Scholar]
  7. LOGAN W. P. D. Mortality in the London fog incident, 1952. Lancet. 1953 Feb 14;1(6755):336–338. doi: 10.1016/s0140-6736(53)91012-5. [DOI] [PubMed] [Google Scholar]
  8. Pope C. A., 3rd Respiratory hospital admissions associated with PM10 pollution in Utah, Salt Lake, and Cache Valleys. Arch Environ Health. 1991 Mar-Apr;46(2):90–97. doi: 10.1080/00039896.1991.9937434. [DOI] [PubMed] [Google Scholar]
  9. Pönkä A. Asthma and low level air pollution in Helsinki. Arch Environ Health. 1991 Sep-Oct;46(5):262–270. doi: 10.1080/00039896.1991.9934386. [DOI] [PubMed] [Google Scholar]
  10. Pönkä A., Virtanen M. Chronic bronchitis, emphysema, and low-level air pollution in Helsinki, 1987-1989. Environ Res. 1994 May;65(2):207–217. doi: 10.1006/enrs.1994.1032. [DOI] [PubMed] [Google Scholar]
  11. Schwartz J., Slater D., Larson T. V., Pierson W. E., Koenig J. Q. Particulate air pollution and hospital emergency room visits for asthma in Seattle. Am Rev Respir Dis. 1993 Apr;147(4):826–831. doi: 10.1164/ajrccm/147.4.826. [DOI] [PubMed] [Google Scholar]
  12. Schwartz J., Wypij D., Dockery D., Ware J., Zeger S., Spengler J., Ferris B., Jr Daily diaries of respiratory symptoms and air pollution: methodological issues and results. Environ Health Perspect. 1991 Jan;90:181–187. doi: 10.1289/ehp.90-1519478. [DOI] [PMC free article] [PubMed] [Google Scholar]
  13. Sunyer J., Antó J. M., Murillo C., Saez M. Effects of urban air pollution on emergency room admissions for chronic obstructive pulmonary disease. Am J Epidemiol. 1991 Aug 1;134(3):277–289. doi: 10.1093/oxfordjournals.aje.a116081. [DOI] [PubMed] [Google Scholar]
  14. Whittemore A. S., Korn E. L. Asthma and air pollution in the Los Angeles area. Am J Public Health. 1980 Jul;70(7):687–696. doi: 10.2105/ajph.70.7.687. [DOI] [PMC free article] [PubMed] [Google Scholar]

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