Projecting Fine Particulate Matter-Related Mortality in East China

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• 作者：Lina Madaniyazi ; Tatsuya Nagashima ; Yuming Guo ; Weiwei Yu ; Shilu Tong
• 刊名：Environmental Science & Technology
• 出版年：2015
• 出版时间：September 15, 2015
• 年：2015
• 卷：49
• 期：18
• 页码：11141-11150
• 全文大小：567K
• ISSN：1520-5851

文摘

China is suffering from severe air pollution from fine particulate matter [鈮?2.5 渭m in aerodynamic diameter (PM_2.5)], especially East China. But its future trends and potential health impacts remain unclear. The study objectives were to project future trends of PM_2.5 and its short-term effect on mortality in East China by 2030. First, daily changes in PM_2.5 concentrations between 2005 and 2030 were projected under the 鈥渃urrent legislation鈥?scenario (CLE) and the 鈥渕aximum technically feasible reduction鈥?scenario (MFR). Then, they were linked to six population projections, two mortality rate projections, and PM_2.5-mortality associations to estimate the changes in PM_2.5-related mortality in East China between 2005 and 2030. Under the CLE scenario, the annual mean PM_2.5 concentration was projected to decrease by 0.62 渭g/m³ in East China, which could cause up to 124鈥?00 additional deaths, when considering the population growth. Under the MFR scenario, the annual mean PM_2.5 concentration was projected to decrease by 20.41 渭g/m³ in East China. At least 230鈥?00 deaths could be avoided by such a large reduction in PM_2.5 concentration under MFR scenario, even after accounting for the population growth. Therefore, our results suggest that reducing PM_2.5 concentration substantially in East China would benefit the public health. Otherwise, it may still remain as a great health risk in the future, especially when the population keeps growing.