Abstract
In 1995, daily mortality in a district of Chongqing, China, was analyzed from January through December for associations with daily ambient sulfur dioxide and fine particles (airborne particles with diameters less than or equal to 2.5 microm; PM2.5. The mean concentration of PM2.5 was 147 microg/m3 (maximum, 666 microg/m3), and that of SO2 was 213 microg/m3 (maximum, 571 microg/m3). On average, 9.6 persons died each day. We used a generalized additive model using robust Poisson regression to estimate the associations of mean daily SO2 and PM2.5 with daily mortality (on the same day and at lags up to 5 days) adjusted for trend, season, temperature, humidity, and day of the week. The relative risk of mortality associated with a 100 microg/m3 increase in mean daily SO2 was highest on the second lag day [1.04; 95% confidence interval (CI), 1.00-1.09] and the third lag day (1.04; 95% CI, 0.99-1.08). The associations between daily mortality and mean daily PM2.5 were negative and statistically insignificant on all days. The relative risk of respiratory mortality on the second day after a 100 microg/m3 increase in mean daily SO2 was 1.11 (95% CI, 1.02-1.22), and that for cardiovascular mortality was 1.10 (95% CI, 1.02-1.20). The relative risk of cardiovascular mortality on the third day after a 100 microg/m3 increase in mean daily SO2 was 1.20 (95% CI, 1.11-1.30). The relative risks of mortality due to cancer and other causes were insignificant on both days. The estimated effects of mean daily SO2 on cardiovascular and respiratory mortality risk remained after controlling for PM2.5.
Full Text
The Full Text of this article is available as a PDF (150.0 KB).
Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- Borja-Aburto V. H., Castillejos M., Gold D. R., Bierzwinski S., Loomis D. Mortality and ambient fine particles in southwest Mexico City, 1993-1995. Environ Health Perspect. 1998 Dec;106(12):849–855. doi: 10.1289/ehp.106-1533229. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Burnett R. T., Cakmak S., Brook J. R. The effect of the urban ambient air pollution mix on daily mortality rates in 11 Canadian cities. Can J Public Health. 1998 May-Jun;89(3):152–156. doi: 10.1007/BF03404464. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Burnett R. T., Cakmak S., Raizenne M. E., Stieb D., Vincent R., Krewski D., Brook J. R., Philips O., Ozkaynak H. The association between ambient carbon monoxide levels and daily mortality in Toronto, Canada. J Air Waste Manag Assoc. 1998 Aug;48(8):689–700. doi: 10.1080/10473289.1998.10463718. [DOI] [PubMed] [Google Scholar]
- Dockery D. W., Pope C. A., 3rd, Xu X., Spengler J. D., Ware J. H., Fay M. E., Ferris B. G., Jr, Speizer F. E. An association between air pollution and mortality in six U.S. cities. N Engl J Med. 1993 Dec 9;329(24):1753–1759. doi: 10.1056/NEJM199312093292401. [DOI] [PubMed] [Google Scholar]
- Fairley D. Daily mortality and air pollution in Santa Clara County, California: 1989-1996. Environ Health Perspect. 1999 Aug;107(8):637–641. doi: 10.1289/ehp.99107637. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Goldberg M. S., Burnett R. T., Brook J., Bailar J. C., 3rd, Valois M. F., Vincent R. Associations between daily cause-specific mortality and concentrations of ground-level ozone in Montreal, Quebec. Am J Epidemiol. 2001 Nov 1;154(9):817–826. doi: 10.1093/aje/154.9.817. [DOI] [PubMed] [Google Scholar]
- Hales S., Salmond C., Town G. I., Kjellstrom T., Woodward A. Daily mortality in relation to weather and air pollution in Christchurch, New Zealand. Aust N Z J Public Health. 2000 Feb;24(1):89–91. doi: 10.1111/j.1467-842x.2000.tb00731.x. [DOI] [PubMed] [Google Scholar]
- Katsouyanni K., Touloumi G., Spix C., Schwartz J., Balducci F., Medina S., Rossi G., Wojtyniak B., Sunyer J., Bacharova L. Short-term effects of ambient sulphur dioxide and particulate matter on mortality in 12 European cities: results from time series data from the APHEA project. Air Pollution and Health: a European Approach. BMJ. 1997 Jun 7;314(7095):1658–1663. doi: 10.1136/bmj.314.7095.1658. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Klemm R. J., Mason R. M., Jr, Heilig C. M., Neas L. M., Dockery D. W. Is daily mortality associated specifically with fine particles? Data reconstruction and replication of analyses. J Air Waste Manag Assoc. 2000 Jul;50(7):1215–1222. doi: 10.1080/10473289.2000.10464149. [DOI] [PubMed] [Google Scholar]
- Lee J. T., Kim H., Hong Y. C., Kwon H. J., Schwartz J., Christiani D. C. Air pollution and daily mortality in seven major cities of Korea, 1991-1997. Environ Res. 2000 Nov;84(3):247–254. doi: 10.1006/enrs.2000.4096. [DOI] [PubMed] [Google Scholar]
- Lee J. T., Shin D., Chung Y. Air pollution and daily mortality in Seoul and Ulsan, Korea. Environ Health Perspect. 1999 Feb;107(2):149–154. doi: 10.1289/ehp.99107149. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Liao D., Creason J., Shy C., Williams R., Watts R., Zweidinger R. Daily variation of particulate air pollution and poor cardiac autonomic control in the elderly. Environ Health Perspect. 1999 Jul;107(7):521–525. doi: 10.1289/ehp.99107521. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Moolgavkar S. H. Air pollution and daily mortality in three U.S. counties. Environ Health Perspect. 2000 Aug;108(8):777–784. doi: 10.1289/ehp.00108777. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Pekkanen J., Brunner E. J., Anderson H. R., Tiittanen P., Atkinson R. W. Daily concentrations of air pollution and plasma fibrinogen in London. Occup Environ Med. 2000 Dec;57(12):818–822. doi: 10.1136/oem.57.12.818. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Peters A., Döring A., Wichmann H. E., Koenig W. Increased plasma viscosity during an air pollution episode: a link to mortality? Lancet. 1997 May 31;349(9065):1582–1587. doi: 10.1016/S0140-6736(97)01211-7. [DOI] [PubMed] [Google Scholar]
- Peters A., Perz S., Döring A., Stieber J., Koenig W., Wichmann H. E. Increases in heart rate during an air pollution episode. Am J Epidemiol. 1999 Nov 15;150(10):1094–1098. doi: 10.1093/oxfordjournals.aje.a009934. [DOI] [PubMed] [Google Scholar]
- Samet J. M., Dominici F., Curriero F. C., Coursac I., Zeger S. L. Fine particulate air pollution and mortality in 20 U.S. cities, 1987-1994. N Engl J Med. 2000 Dec 14;343(24):1742–1749. doi: 10.1056/NEJM200012143432401. [DOI] [PubMed] [Google Scholar]
- Schwartz J. Air pollution and daily mortality: a review and meta analysis. Environ Res. 1994 Jan;64(1):36–52. doi: 10.1006/enrs.1994.1005. [DOI] [PubMed] [Google Scholar]
- Schwartz J., Dockery D. W. Increased mortality in Philadelphia associated with daily air pollution concentrations. Am Rev Respir Dis. 1992 Mar;145(3):600–604. doi: 10.1164/ajrccm/145.3.600. [DOI] [PubMed] [Google Scholar]
- Schwartz J., Dockery D. W., Neas L. M. Is daily mortality associated specifically with fine particles? J Air Waste Manag Assoc. 1996 Oct;46(10):927–939. [PubMed] [Google Scholar]
- Seaton A., Soutar A., Crawford V., Elton R., McNerlan S., Cherrie J., Watt M., Agius R., Stout R. Particulate air pollution and the blood. Thorax. 1999 Nov;54(11):1027–1032. doi: 10.1136/thx.54.11.1027. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Stieb David M., Judek Stan, Burnett Richard T. Meta-analysis of time-series studies of air pollution and mortality: effects of gases and particles and the influence of cause of death, age, and season. J Air Waste Manag Assoc. 2002 Apr;52(4):470–484. doi: 10.1080/10473289.2002.10470794. [DOI] [PubMed] [Google Scholar]
- Touloumi G., Samoli E., Katsouyanni K. Daily mortality and "winter type" air pollution in Athens, Greece--a time series analysis within the APHEA project. J Epidemiol Community Health. 1996 Apr;50 (Suppl 1):s47–s51. doi: 10.1136/jech.50.suppl_1.s47. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Wang X., Ding H., Ryan L., Xu X. Association between air pollution and low birth weight: a community-based study. Environ Health Perspect. 1997 May;105(5):514–520. doi: 10.1289/ehp.97105514. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Xu X., Ding H., Wang X. Acute effects of total suspended particles and sulfur dioxides on preterm delivery: a community-based cohort study. Arch Environ Health. 1995 Nov-Dec;50(6):407–415. doi: 10.1080/00039896.1995.9935976. [DOI] [PubMed] [Google Scholar]
- Xu X., Dockery D. W., Christiani D. C., Li B., Huang H. Association of air pollution with hospital outpatient visits in Beijing. Arch Environ Health. 1995 May-Jun;50(3):214–220. doi: 10.1080/00039896.1995.9940390. [DOI] [PubMed] [Google Scholar]
- Xu X., Gao J., Dockery D. W., Chen Y. Air pollution and daily mortality in residential areas of Beijing, China. Arch Environ Health. 1994 Jul-Aug;49(4):216–222. doi: 10.1080/00039896.1994.9937470. [DOI] [PubMed] [Google Scholar]
- Xu X., Li B., Huang H. Air pollution and unscheduled hospital outpatient and emergency room visits. Environ Health Perspect. 1995 Mar;103(3):286–289. doi: 10.1289/ehp.95103286. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Zeger S. L., Thomas D., Dominici F., Samet J. M., Schwartz J., Dockery D., Cohen A. Exposure measurement error in time-series studies of air pollution: concepts and consequences. Environ Health Perspect. 2000 May;108(5):419–426. doi: 10.1289/ehp.00108419. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Zmirou D., Barumandzadeh T., Balducci F., Ritter P., Laham G., Ghilardi J. P. Short term effects of air pollution on mortality in the city of Lyon, France, 1985-90. J Epidemiol Community Health. 1996 Apr;50 (Suppl 1):S30–S35. doi: 10.1136/jech.50.suppl_1.s30. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Zmirou D., Schwartz J., Saez M., Zanobetti A., Wojtyniak B., Touloumi G., Spix C., Ponce de León A., Le Moullec Y., Bacharova L. Time-series analysis of air pollution and cause-specific mortality. Epidemiology. 1998 Sep;9(5):495–503. [PubMed] [Google Scholar]