气候变化领域集成服务门户(CCPortal): Iron and steel industry emissions and contribution to the air quality in China

CCPortal

DOI	10.1016/j.atmosenv.2020.117668
	Iron and steel industry emissions and contribution to the air quality in China
	Tang L.; Xue X.; Jia M.; Jing H.; Wang T.; Zhen R.; Huang M.; Tian J.; Guo J.; Li L.; Bo X.; Wang S.
发表日期	2020
ISSN	1352-2310
卷号	237
英文摘要	To reduce the emissions from the iron and steel industry, China has imposed a series of strengthened emission standards since 2012. An accurate impact of emission reduction on the air quality is critical for evaluating policy efficiency. This study was the first attempt to explore the contribution of emissions from China's iron and steel industry to ambient air quality at national scale, after the implementation of current standards in 2012. First, all emission sources in production processes were estimated at unit level in China's iron and steel industry, covering sulfur dioxide (SO2), nitrogen oxides (NOx) and particulate matter (PM2.5), etc. Second, the corresponding air quality impacts were modeled with the Comprehensive Air Quality Model with extensions (CAMx) model. We find that emission hotspots from China's iron and steel industry, with following aspects. (1) From a spatial perspective, the largest emissions and ambient concentration contributors were mainly concentrated in eastern areas of China, with high crude steel production. (2) Among three main pollutants (i.e., SO2, NOx and PM2.5), SO2 made the largest contribution to ambient concentration in China's iron and steel industry. (3) As for temporal distribution, emission sources presented the greatest contribution to air quality concentration in summer. (4) For policy evaluation, under the current standards in 2012, the contribution of iron and steel industry emissions to air quality decreased by 92.07% and 72.91% for SO2 and PM2.5, respectively. Therefore, these results will be essential to reflecting current emission characteristics and underscoring further opportunities for emission reductions. © 2020 Elsevier Ltd
关键词	Air quality CAMx China Iron and steel industry
语种	英语
scopus关键词	Air quality; Air quality standards; Emission control; Nitrogen oxides; Steelmaking; Sulfur dioxide; Air quality impacts; Ambient air quality; Ambient concentrations; Comprehensive air quality model with extensions; Crude steel production; Emission reduction; Production process; Temporal distribution; Iron and steel industry; black carbon; carbon monoxide; fluoride; nitrogen oxide; organic carbon; sulfur dioxide; air quality; ambient air; emission control; industrial emission; iron and steel industry; policy implementation; pollution policy; standard (regulation); air pollution control; air quality; ambient air; Article; China; controlled study; environmental policy; iron and steel industry; particulate matter; priority journal; summer; China
来源期刊	ATMOSPHERIC ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/249064
作者单位	School of Economics and Management, Beihang University, Beijing, 100191, China; School of Economics and Management, Beijing University of Chemical Technology, Beijing, 100029, China; Appraisal Center for Environment and Engineering, Ministry of Ecology and Environment, Beijing, 100012, China; China National Environmental Monitoring Centre, Beijing, 100012, China; Shaanxi Environmental Investigation and Assessment Center, Xian, 710000, China; Capital Engineering & Research Incorporation Limited, Beijing, 100176, China; Academy of Environmental Planning & Design, Co., Ltd, Nanjing University, Nanjing, 210093, China; International School of Economics and Management, Capital University of Economics and Business, Beijing, 100070, China; Academy of Mathematics and Systems Science, Chinese Academy of Sciences, Beijing, 100190, China
推荐引用方式 GB/T 7714	Tang L.,Xue X.,Jia M.,et al. Iron and steel industry emissions and contribution to the air quality in China[J],2020,237.
APA	Tang L..,Xue X..,Jia M..,Jing H..,Wang T..,...&Wang S..(2020).Iron and steel industry emissions and contribution to the air quality in China.ATMOSPHERIC ENVIRONMENT,237.
MLA	Tang L.,et al."Iron and steel industry emissions and contribution to the air quality in China".ATMOSPHERIC ENVIRONMENT 237(2020).