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Korean Journal of Preventive Medicine 1998;31(1): 82-90.
Air particulate matters and daily mortality in Ulsan, Korea.
Jong Tae Lee, Seong Im Lee, Dongchun Shin, Yong Chung
1Department of Preventive Medicine and Public Health, College of Medicine, Yonsei University, Seoul, Korea.
2Department of Computer Science and Statistics, Seoul National University, Seoul, Korea.
ABSTRACT
A large number of studies have indicated associations between particulate air pollution and daily mortality. Daily measurements of total suspended particulates (TSP) by high volume air sampler were matched to daily death counts supplied by the National Statistics Office, Korea. All deaths, except deaths from accidents, occurred at Ulsan from 1 January 1991 to 31 December 1994 were considered in the poisson regression analysis. The multiple regression models were used to investigate a main effects of air particulate pollution controlling for SO2 levels, air temperature, relative humidity, seasonal variation, and calendar year. The results indicated that the effects of TSP, SO2, temperature, and relative humidity were not significantly associated with all cause mortality. It could, however, be emphasized that the size of the parameter estimate of TSP was very similar to that of previous studies. An increase in particulates of 100microgram/m4 was associated with a 3% increase in mortality. This relationship was observed at TSP levels well below the current National Ambient Air Quality Standard of 150microgram/m4 in Korea as well.
Key words: air pollution; air particulate pollution; mortality
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