2015年海南省火电行业大气环境影响研究

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Abstract

Based on the continuous emission monitoring systems (CEMS), environmental statistics, pollutant discharge permit and emission inventory of power plants in Hainan Province in 2015, the difference of pollutant emissions from power plants in Hainan under different methods was analyzed, and the variation rule of power plants emissions was acquired. In this paper, three situations including current situation, pollutant discharge permit situation and ultra-low emission situation were considered, and impacts of power plants on the air quality of Hainan province under three situations were simulated using CALPUFF model. The results showed that the emissions of various pollutants from power plants vary greatly under different statistical methods, and the maximum difference can reach 5.65times. In the time dimension, the monthly distribution of pollutant emissions from thermal power industry was relatively stable ranging from 7% to 10% and 24-hour fluctuation was characterized by "two peaks and two valleys". In terms of air quality, the concentration distribution of SO₂, NO_x, PM_2.5 and PM₁₀ generally showed a trend of high in west and low in east. Under current situation, the impacts of power plants on the average of annual concentration of each pollutant were SO₂ 0.001~0.015μg/m³、NO_x 0~0.01μg/m³、PM₁₀ 0.001~0.006μg/m³、PM_2.5 0~0.003μg/m³, and most of the highest concentration occurred in Dongfang and Lingao. The degree of impact of power plants on the atmospheric environment was permit > current > ultra-low. When the pollutant discharge permit is implemented, the annual average concentration of PM₁₀ and NO_x emitted from power plants increases by 50% and 38%, respectively, compared with the current situation. After the full implementation of ultra-low emission, there is a significant improvement in the air quality, with the annual average concentration of SO₂ and PM_2.5 for each city reduced by 57% and 69%, respectively, compared with the current situation.

Key words： environmental permitting power plants CEMS (continuous emission monitoring systems) CALPUFF emission inventory

Received: 30 May 2018

PACS:	X51
	X823

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	Articles by authors
	KAN Hui
	BO Xin
	QU Jia-Bao
	YANG Chao-Xu
	WU Peng-Cheng
	TIAN Fei
	MO Hua
	ZHAO Xiao-Hong
	ZHOU Xue-Shuang

Cite this article:

KAN Hui,BO Xin,QU Jia-Bao等. Air quality impacts of power plant emissions in Hainan Province, 2015[J]. CHINA ENVIRONMENTAL SCIENCECE, 2019, 39(1): 428-439.

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http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2019/V39/I1/428

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