Predicted impact of thermal power generation emission control measures in the Beijing-Tianjin-Hebei region on air pollution over Beijing, China.

Predicted impact of thermal power generation emission control measures in the Beijing-Tianjin-Hebei region on air pollution over Beijing, China.
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京津冀地区火力发电排放控制措施对北京空气污染的影响预测

DOI:
10.1038/s41598-018-19481-0
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发表时间:
2018-01-17
期刊:
影响因子:
4.6
通讯作者:
Seinfeld JH
Seinfeld JH
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Wang L;Li P;Yu S;Mehmood K;Li Z;Chang S;Liu W;Rosenfeld D;Flagan RC;Seinfeld JH

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中国广泛的经济增长导致了越来越多的严重空气污染事件,特别是在主要城市地区。火力发电厂是一类特别重要的排放物。本文利用社区多尺度空气质量(CMAQ)大气化学输送模式对京津冀地区最近提出的一系列火电厂排放控制措施对北京空气质量的预测效果进行了评估,以预测CO、SO2、NO2、PM2.5和PM10水平。对BTH地区所有火力发电厂的假设迁移进行的基线模拟预测,将导致北京当前CO、SO2、NO2、PM2.5和PM10的年平均水平分别减少38%、23%、23%、24%和24%。预计BTH地区的主要城市也会出现类似的降幅。对BTH地区六个拟议的火力发电厂减排战略对空气质量影响的模拟提供了对北京大都市区空气质量随一年中的时间变化的潜在改善的估计。
Widespread economic growth in China has led to increasing episodes of severe air pollution, especially in major urban areas. Thermal power plants represent a particularly important class of emissions. Here we present an evaluation of the predicted effectiveness of a series of recently proposed thermal power plant emission controls in the Beijing-Tianjin-Hebei (BTH) region on air quality over Beijing using the Community Multiscale Air Quality(CMAQ) atmospheric chemical transport model to predict CO, SO2, NO2, PM2.5, and PM10levels. A baseline simulation of the hypothetical removal of all thermal power plants in the BTH region is predicted to lead to 38%, 23%, 23%, 24%, and 24% reductions in current annual mean levels of CO, SO2, NO2, PM2.5, and PM10in Beijing, respectively. Similar percentage reductions are predicted in the major cities in the BTH region. Simulations of the air quality impact of six proposed thermal power plant emission reduction strategies over the BTH region provide an estimate of the potential improvement in air quality in the Beijing metropolitan area, as a function of the time of year.
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