Impact of the Green Light Program on haze in the North China Plain, China

Long, Xin1,3,7; Tie, Xuexi1,2,3,4,5; Zhou, Jiamao3; Dai, Wenting3; Li, Xueke6; Feng, Tian1; Li, Guohui1,3; Cao, Junji1,3; An, Zhisheng1

2019-09-04

10.5194/acp-19-11185-2019

ATMOSPHERIC CHEMISTRY AND PHYSICS   影响因子和分区

1680-7316

1680-7324

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 (WRF-CHEM). The model results suggest that in the case of lower-limit emission reduction, the PM2.5 concentration decreased by 2-5 mu g m(-3) in large areas of the NCP. In the case of upper-limit emission reduction, there was much more remarkable decrease in PM2.5 concentration (4-10 mu g m(-3)). This study is a good example to illustrate that scientific innovation can induce important benefits for environment issues such as haze.

SCI

英语

其他

Ministry of Science and Technology of China[2016YFC0203400]

Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences

Environmental Sciences ; Meteorology & Atmospheric Sciences

WOS:000484228100002

COPERNICUS GESELLSCHAFT MBH

GEOSCIENCES

Web of Science

1.Chinese Acad Sci, Inst Earth Environm, SKLLQG, Xian 710061, Shaanxi, Peoples R China
2.Chinese Acad Sci, Inst Urban Environm, Ctr Excellence Urban Atmospher Environm, Xiamen 361021, Fujian, Peoples R China
3.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, Xian 710061, Shaanxi, Peoples R China
4.Shanghai Key Lab Meteorol & Hlth, Shanghai 200030, Peoples R China
5.Natl Ctr Atmospher Res, Boulder, CO 80303 USA
6.Univ Connecticut, Dept Geog, Mansfield, CT 06269 USA
7.Southern Univ Sci & Technol, Sch Environm Sci & Engn, Shenzhen 518055, Peoples R China

Long, Xin,Tie, Xuexi,Zhou, Jiamao,et al. Impact of the Green Light Program on haze in the North China Plain, China[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2019,19(17):11185-11197.

Long, Xin.,Tie, Xuexi.,Zhou, Jiamao.,Dai, Wenting.,Li, Xueke.,...&An, Zhisheng.(2019).Impact of the Green Light Program on haze in the North China Plain, China.ATMOSPHERIC CHEMISTRY AND PHYSICS,19(17),11185-11197.

Long, Xin,et al."Impact of the Green Light Program on haze in the North China Plain, China".ATMOSPHERIC CHEMISTRY AND PHYSICS 19.17(2019):11185-11197.