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자료유형
학술저널
저자정보
이수현 (서울대학교) 김옥진 (국립암센터) 김선영 (국립암센터) 김호 (서울대학교)
저널정보
한국대기환경학회 한국대기환경학회지(국문) 한국대기환경학회지 제34권 제6호
발행연도
2018.12
수록면
806 - 821 (16page)
DOI
10.5572/KOSAE.2018.34.6.806

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Previous national cohort studies in Europe and North America have reported the relationship between longterm exposure to fine particulate matter air pollution and human health. However, there have been few studies in South Korea, because nationwide PM<SUB>2.5</SUB> regulatory air quality monitoring data were not available before 2015. This study aimed to develop an approach to predicting nationwide annual average PM<SUB>2.5</SUB> concentrations for 2001~2014 using the ratios of PM<SUB>2.5</SUB> to PM<SUB>10</SUB>. We used regulatory air quality monitoring data for PM<SUB>2.5</SUB> available only in Seoul for 2001~2014 and for the entire country in 2015, as well as national-scale data for PM<SUB>10</SUB> for 2001~2015. Our approach is based on multiplication of the districtspecific annual means of PM<SUB>10</SUB> for 2001~2014 predicted from a previously-developed approach by ratios of annual average PM<SUB>2.5</SUB> to PM<SUB>10</SUB>. Given the limited data availability to match PM<SUB>2.5</SUB> and PM<SUB>10</SUB> data over time and space, we explored five approaches for computing ratios of PM<SUB>2.5</SUB> to PM10: 1) an overall ratio based on national data in 2015; 2) a ratio for 2001~2014 in Seoul; 3) annual ratios for 2001~2014 in Seoul; 4) regional ratios in 2015; 5) regional ratios in 2015 with a spatial adjustment factor. We validated the models using PM<SUB>2.5</SUB> data for 2011~2014 collected at 24 regulatory monitoring sties in the second largest metropolitan city in South Korea, Busan. Whereas R² was computed over all sites and all years, spatial R² was computed by using 4-year averages at each site focusing on spatial prediction ability. In our validation, the approach 5 gave the largest overall and spatial R² of 0.79 and 0.84. Our highly predictive approach for estimating national-scale annual-average PM<SUB>2.5</SUB> concentrations for 15 years will allow future cohort studies to investigate health effects of long-term exposure to PM<SUB>2.5</SUB> in South Korea.

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Abstract
1. 서론
2. 연구 방법
3. 연구 결과
4. 고찰
5. 결론
References

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