Population exposure to hazardous air quality due to the 2015 fires in Equatorial Asia.

Population exposure to hazardous air quality due to the 2015 fires in Equatorial Asia.
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由于赤道亚洲2015年大火而导致的危险空气质量的人口暴露。

DOI:
10.1038/srep37074
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发表时间:
2016-11-16
期刊:
影响因子:
4.6
通讯作者:
Spracklen DV
Spracklen DV
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Crippa P;Castruccio S;Archer-Nicholls S;Lebron GB;Kuwata M;Thota A;Sumin S;Butt E;Wiedinmyer C;Spracklen DV

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植被和泥炭地火灾导致赤道亚洲人口稠密地区空气质量差,数千人过早死亡。强烈的厄尔尼诺现象和正印度洋偶极子条件与印度尼西亚和婆罗洲野火的频率和强度增加有关,使人口更多地接触到有害浓度的烟雾和空气污染物。在这里,我们调查了2015年秋季赤道亚洲野火对空气质量和人口暴露的影响,这是过去二十年来最大的一次。我们进行了高分辨率的模拟,使用天气研究和预测模型与化学的基础上,一个新的火灾排放产品。该模型反映了极端污染事件相对于空间和地面观测的时空变异性,并可用于确定赤道亚洲上空的污染源和迁移。我们计算出,2015年秋季火灾产生的高颗粒物浓度导致6900万人持续暴露在不健康的空气质量条件下。短期暴露于这种污染可能导致11,880(6,153 - 17,270)例超额死亡。这项研究的结果为决策者提供了有关土地利用变化和人为砍伐森林对火灾频率和人口暴露于退化空气质量的影响的决策相关信息。
Vegetation and peatland fires cause poor air quality and thousands of premature deaths across densely populated regions in Equatorial Asia. Strong El-Niño and positive Indian Ocean Dipole conditions are associated with an increase in the frequency and intensity of wildfires in Indonesia and Borneo, enhancing population exposure to hazardous concentrations of smoke and air pollutants. Here we investigate the impact on air quality and population exposure of wildfires in Equatorial Asia during Fall 2015, which were the largest over the past two decades. We performed high-resolution simulations using the Weather Research and Forecasting model with Chemistry based on a new fire emission product. The model captures the spatio-temporal variability of extreme pollution episodes relative to space- and ground-based observations and allows for identification of pollution sources and transport over Equatorial Asia. We calculate that high particulate matter concentrations from fires during Fall 2015 were responsible for persistent exposure of 69 million people to unhealthy air quality conditions. Short-term exposure to this pollution may have caused 11,880 (6,153–17,270) excess mortalities. Results from this research provide decision-relevant information to policy makers regarding the impact of land use changes and human driven deforestation on fire frequency and population exposure to degraded air quality.
DOI: 10.1038/ngeo443
发表时间: 2009-03-01
期刊: NATURE GEOSCIENCE
影响因子: 18.3
作者:
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作者:
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