Takashi Yorifuji1, Sanghyuk Bae, Saori Kashima, Toshihide Tsuda, Hiroyuki Doi, Yasushi Honda, Ho Kim, Yun-Chul Hong. 1. From the Department of Human Ecology (Drs Yorifuji and Tsuda), Okayama University Graduate School of Environmental and Life Science, Japan; Public Health Medical Service (Dr Bae), Seoul National University Hospital, Korea; Department of Public Health and Health Policy (Dr Kashima), Institute of Biomedical & Health Sciences, Hiroshima University; Department of Epidemiology (Dr Doi), Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences; Department of Health Care Policy and Health Economics (Dr Honda), Faculty of Medicine, University of Tsukuba, Japan; Department of Epidemiology and Biostatistics (Dr Kim), Graduate School of Public Health, Seoul National University; and Institute of Environmental Medicine (Dr Hong), Seoul National University Medical Research Center, Korea.
Abstract
OBJECTIVE: We aimed to evaluate the annual health impacts of particulate matter (PM) less than 10 μm diameter (PM10) and less than 2.5-μm diameter (PM2.5) in 27 cities in Southeast and East Asian countries (Japan, the Philippines, the Republic of Korea, Singapore, and Vietnam) for the year 2009 (n = 50,756,699). METHODS: We estimated the number of cases attributable to long-term exposure. We used a scenario that reduced the annual mean values for PM10 and PM2.5 to 20 and 10 μg/m, respectively. RESULTS: A reduction in long-term exposure to PM10 and PM2.5 would have postponed 8% to 9% of all-cause mortality or about 37,000 deaths. One third of them were associated with cardiopulmonary mortality and one ninth of them were associated with lung cancer mortality. CONCLUSIONS: Current air pollution levels in Southeast and East Asian countries have a nonnegligible public health impact.
OBJECTIVE: We aimed to evaluate the annual health impacts of particulate matter (PM) less than 10 μm diameter (PM10) and less than 2.5-μm diameter (PM2.5) in 27 cities in Southeast and East Asian countries (Japan, the Philippines, the Republic of Korea, Singapore, and Vietnam) for the year 2009 (n = 50,756,699). METHODS: We estimated the number of cases attributable to long-term exposure. We used a scenario that reduced the annual mean values for PM10 and PM2.5 to 20 and 10 μg/m, respectively. RESULTS: A reduction in long-term exposure to PM10 and PM2.5 would have postponed 8% to 9% of all-cause mortality or about 37,000 deaths. One third of them were associated with cardiopulmonary mortality and one ninth of them were associated with lung cancer mortality. CONCLUSIONS: Current air pollution levels in Southeast and East Asian countries have a nonnegligible public health impact.
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