Long-Term Trends in Visibility and Its Relationship with Mortality, Air-Quality Index, and Meteorological Factors in Selected Areas of Korea

被引:26
作者
Lee, Jeong-Young [1 ]
Jo, Wan-Kuen [2 ]
Chun, Ho-Hwan [3 ]
机构
[1] Korean Minist Environm, Daegu Reg Off, Taegu 704888, South Korea
[2] Kyungpook Natl Univ, Dept Environm Engn, Taegu 702701, South Korea
[3] Pusan Natl Univ, Dept Naval Architecture & Ocean Engn, Busan 609735, South Korea
基金
新加坡国家研究基金会;
关键词
Visibility; Comprehensive Air-quality Index (CAI); Respiratory mortality (RM); Meteorology; Excess risk; AMBIENT AIR; PARTICULATE MATTER; POLLUTION; EXPOSURE; AEROSOL; REGION;
D O I
10.4209/aaqr.2014.02.0036
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
We investigated temporal trends in atmospheric visibility as well as their relationship to non-accident-related daily mortality, the Comprehensive Air-quality Index (CAI) in Korea, and selected meteorological factors in four cities (Seoul, Busan, Daegu, and Ulsan) and one remote island (Ullungdo) for the period 2001-2009. According to the mean values, Seoul exhibited the lowest visibility (12.2 km), followed by Ullungdo (12.6 km), Ulsan (14.2 km), Daegu (14.7 km), and Busan (17.3 km). Conversely, Ullungdo had the lowest CAI value (82.4) and no respiratory mortality (RM) occurrences at all, and Seoul had both the highest mean CAI value (122) and the highest occurrence of daily RM (5.3). There were negative correlations between visibility and two meteorological parameters (relative humidity and ambient temperature) in all five areas, whereas there were generally positive correlations between visibility and the other two meteorological parameters (precipitation and wind speed). For some lag periods, the mortality in the cities was significantly correlated with visibility and the CAI, whereas mortality in Ullungdo was not. Busan had the highest excess risk for non-accident-related daily mortality, followed by Daegu, Seoul, and Ulsan.
引用
收藏
页码:673 / 681
页数:9
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