Satellite Remote Sensing of Air Quality in the Energy Golden Triangle in Northwest China

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• 作者：Yanjie Shen ; Xiaodong Zhang ; Jeffrey R. Brook ; Tao Huang ; Yuan Zhao ; Hong Gao ; Jianmin Ma
• 刊名：Environmental Science & Technology Letters
• 出版年：2016
• 出版时间：July 12, 2016
• 年：2016
• 卷：3
• 期：7
• 页码：275-279
• 全文大小：365K
• 年卷期：0

文摘

This article presents the first assessment of air quality in the Energy Golden Triangle (EGT) in northwest China. Using the planetary boundary layer (PBL) column density (PCD) of SO₂ and the tropospheric column density (TCD) of NO₂ retrieved from the Ozone Monitoring Instrument (OMI), we show that the column densities of both SO₂ and NO₂ exhibit an increasing trend from 2005 to 2014 in the Ningdong energy and chemical industrial base (NECIB) within the EGT, in contrast to the rapid and widespread decrease of SO₂ emissions in northern China. This is largely attributed to the rapid development of the energy industry in this region. It is expected that SO₂ and NO₂ emitted from the EGT would increasingly contribute to the total emissions of these two air pollutants in northern China.