2018—2022年山西省河津市环境空气浓度变化和趋势分析  

Variations of Ambient Air Pollutants′Concentration from 2018 to 2022 in Hejin City Shanxi Province

作　　者：王建华[1] 王仁桃[1] 吴丽[1] 任云霞[1] WANG Jianhua;WANG Rentao;WU Li;REN Yunxia(Institute of Coal Chemistry,Chinese Academy of Sciences,Taiyuan 030001,China)

机构地区：[1]中国科学院山西煤炭化学研究所,山西太原030001

出　　处：《环境影响评价》2023年第3期63-67,共5页Environmental Impact Assessment

摘　　要：以山西省典型工业城镇河津市为研究对象,探讨该市近五年来环境空气污染物浓度变化情况,分析污染物浓度月际变化规律,运用Spearman秩相关系数法分析变化趋势。结果表明,近五年内河津市全年优良天数占比逐年增加,NO_(2)、PM_(10)、PM_(2.5)、SO_(2)、CO浓度均呈下降趋势,O_(3)呈上升趋势,PM_(10)、PM_(2.5)、O_(3)三项指标超标;污染物季节分布明显;首要污染物以PM_(2.5)、O_(3)为主,大气污染防控需注重O_(3)、PM_(2.5)与其前体物的协同治理。Taking Hejin City,Shanxi Province as the research object,this article discusses the change of ambient air pollutant concentration in the city in the past five years,analyzes the monthly change law of pollutant concentration,and analyzes the change trend using Spearman rank correlation coefficient method.The results showed that the proportion of excellent days in Hejin City increased year by year in the past five years,the concentrations of NO_(2),PM_(10),PM_(2.5),SO_(2) and CO showed a downward trend,O_(3) showed an upward trend,PM_(10),PM_(2.5) and O_(3) exceeded the standard;The seasonal distribution of pollutants is obvious;The main pollutants are PM_(2.5) and O_(3).The prevention and control of air pollution should focus on the coordinated treatment of O_(3),PM_(2.5) and their precursors.

关 键 词：环境空气 污染防治 协同治理 山西省 

分 类 号：X51[环境科学与工程—环境工程]