气候变化领域集成服务门户(CCPortal): Impact of the green light program on haze in the North China Plain; China

CCPortal

DOI	10.5194/acp-19-11185-2019
	Impact of the green light program on haze in the North China Plain; China
	Long X.; Tie X.; Zhou J.; Dai W.; Li X.; Feng T.; Li G.; Cao J.; An Z.
发表日期	2019
ISSN	16807316
起始页码	11185
结束页码	11197
卷号	19 期号:17
英文摘要	As the world's largest developing country, China has undergone ever-increasing demand for electricity during the past few decades. In 1996, China launched the Green Light Program (GLP), which became a national energy conservation activity for saving lighting electricity as well as an effective reduction of the coal consumption for power generation. Despite the great success of the GLP, its effects on haze have not been investigated and well understood. This study focused on assessing the potential coal saving induced by the improvement of luminous efficacy, the core of the GLP, and on estimating the consequent effects on the haze in the North China Plain (NCP), where a large number of power plants are located and are often engulfed by severe haze. The estimated potential coal saving induced by the GLP can reach a massive value of 120-323 million tons, accounting for 6.7 %-18.0% of the total coal consumption for thermal power generation in China. There was a massive potential emission reduction of air pollutants from thermal power generation in the NCP, which was estimated to be 20.0-53.8 Gg for NOx and 6.9- 18.7 Gg for SO2 in December 2015. The potential emission reduction induced by the GLP plays important roles in the haze formation, because the NOx and SO2 are important precursors for the formation of particles. To assess the impact of the GLP on haze, sensitivity studies were conducted by applying a regional chemical-dynamical model (WRFCHEM). The model results suggest that in the case of lowerlimit emission reduction, the PM2.5 concentration decreased by 2-5 μgm-3 in large areas of the NCP. In the case of upperlimit emission reduction, there was much more remarkable decrease in PM2.5 concentration (4-10 μgm-3). This study is a good example to illustrate that scientific innovation can induce important benefits for environment issues such as haze. © Author(s) 2019.
语种	英语
来源期刊	Atmospheric Chemistry and Physics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/144173
作者单位	State Key Laboratory of Loess and Quaternary Geology, SKLLQG, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an, 710061, China; Center for Excellence in Urban Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China; Key Laboratory of Aerosol Chemistry and Physics, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an, 710061, China; Shanghai Key Laboratory of Meteorology and Health, Shanghai, 200030, China; National Center for Atmospheric Research, Boulder, CO 80303, United States; Department of Geography, University of Connecticut, Storrs, Mansfield, CT 06269, United States; School of Environment Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
推荐引用方式 GB/T 7714	Long X.,Tie X.,Zhou J.,et al. Impact of the green light program on haze in the North China Plain; China[J],2019,19(17).
APA	Long X..,Tie X..,Zhou J..,Dai W..,Li X..,...&An Z..(2019).Impact of the green light program on haze in the North China Plain; China.Atmospheric Chemistry and Physics,19(17).
MLA	Long X.,et al."Impact of the green light program on haze in the North China Plain; China".Atmospheric Chemistry and Physics 19.17(2019).