Satellite-observed US power plant NOx emission reductions and their impact on air quality
Satellite-observed US power plant NOx emission reductions and their impact on air quality
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DOI：
10.1029/2006gl027749
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发表时间：
2006-11-29
影响因子：
5.2
通讯作者：
Grell, G. A.
中科院分区：
文献类型：
--
作者：
Kim, S. -W.;Heckel, A.;Grell, G. A.
化石燃料燃烧产生的氮氧化物（NOx）排放导致近地表臭氧（O-3）的不健康水平。美国最大的S.能源，发电，约占美国的25%。S. 1999年的NOx排放量。在这里，我们表明，空间为基础的仪器观察到下降的区域氮氧化物水平在1999年和2005年之间的响应，最近的实施污染控制的公用事业公司在美国东部。S.卫星反演的夏季二氧化氮（NO2）柱和自下而上的排放估计显示，俄亥俄州河谷的减少幅度比美国东北部大，在俄亥俄州河谷，发电厂是氮氧化物排放的主要来源。S.城市走廊模型模拟预测，美国东部大部分地区的O-3含量较低。S.以应对这些减排。
Nitrogen oxide (NOx) emissions resulting from fossil fuel combustion lead to unhealthy levels of near-surface ozone (O-3). One of the largest U. S. sources, electric power generation, represented about 25% of the U. S. anthropogenic NOx emissions in 1999. Here we show that space-based instruments observed declining regional NOx levels between 1999 and 2005 in response to the recent implementation of pollution controls by utility companies in the eastern U. S. Satellite-retrieved summertime nitrogen dioxide (NO2) columns and bottom-up emission estimates show larger decreases in the Ohio River Valley, where power plants dominate NOx emissions, than in the northeast U. S. urban corridor. Model simulations predict lower O-3 across much of the eastern U. S. in response to these emission reductions.