中国煤炭消费对PM2.5污染的影响研究

Impact of Coal Consumption to PM2.5 Pollution in China

中文关键词:  煤炭消费  PM_2.5  WRF  CAMx

英文关键词:Coal consumption  PM_2.5  WRF  CAMx

中文摘要:

      国务院颁布的《大气污染防治行动计划》明确提出制定国家煤炭消费总量中长期控制目标,到2017年,煤炭占能源消费总量比重降低到65%以下,然而煤炭消费对PM_2.5污染的贡献到底多大,这是当前亟待研究的科学问题。为定量分析煤炭消费对我国PM_2.5污染的影响,本研究首先计算了2012年煤炭消费产生的大气污染物排量,然后利用CAMx空气质量模型,分别采用组分分析法和情景模拟法两种方法研究了煤炭消费对全国PM_2.5污染的影响。组分分析法研究表明,煤炭消费对全国PM_2.5年均浓度的贡献率约为61%,其中煤炭直接燃烧、煤炭相关行业的贡献率分别约为37%、24%;情景模拟法研究表明,煤炭消费对全国PM_2.5年均浓度的贡献率约为56%。因此,我国由于煤炭消费对全国PM_2.5年均浓度的贡献率为56%~61%。

英文摘要:

      In order to quantitatively analyze the impact of coal consumption to PM_2.5 pollution in China,emissions of air pollutants caused by coal consumption in 2012 were calculated.And its impact to PM_2.5 pollution was analyzed by component analysis method and scenario simulation method,respectively,based on CAMx air quality model.Component analysis showed that contribution rate to the annual average concentration of PM_2.5 from coal consumption in 2012 was 61%,in which contribution rate of coal direct combustion and coal related industries was 37% and 24% respectively.Scenario simulation study indicated that the contribution rate was 56%.In view of this,contribution rate to the annual average concentrations of PM 2.5 from coal consumption in China ranged from 56% to 61%.