摘要
为探究严控措施对哈尔滨市空气质量的影响,本文选取哈尔滨市2019—2021年(1月21日至3月23日)的空气质量数据,分析在此期间的空气环境质量变化特征。结果表明,严控期间整体空气质量好于严控前,优良比例明显提高;各类大气污染物中,除O_(3)外,其余污染物浓度均有不同程度的下降,下降幅度表现为PM_(10)>PM_(2.5)>NO_(2)>CO>SO_(2);从日变化规律上看,严控措施对O_(3)峰谷类型及变化幅度没有显著影响,气态污染物SO_(2)、NO_(2)、CO日变化幅度减小,PM_(10)及PM_(2.5)日变化规律明显改变。
In order to explore the impact of the strict control measures on the air quality of Harbin City,this paper selects the air quality data of Harbin City from 2019 to 2021(January 21 to March 23)to analyze the change characteristics of the air environment quality during this period.The results showed that the overall air quality during the strict control period was better than that before the strict control,and the proportion of excellent and good air quality was significantly increased;among all kinds o£air pollutants,except for O_(3),the concentrations of other pollutants had decreased to varying degrees,with the range of PM_(10)>PM_(2.5)>NO_(2)>CO>SO_(2);from the perspective of daily change law,the strict control measures had no significant impact on O_(3)peak and valley type and change range,the daily change range of gaseous pollutants SO_(2),NO_(2)and CO was reduced,while the daily change law of PM_(10)and PM_(2.5)was significandy changed.
作者
杨洋
周嘉
YANG Yang;ZHOU Jia(Heilongjiang Province Key Laboratory of Geographical Environment Monitoring and Spatial Information Service in Cold Regions,Harbin Normal University;Heilongjiang Province Collaborative Innovation Center of Cold Region Ecological Safety,Harbin 150025,China)
出处
《中国资源综合利用》
2023年第3期144-149,共6页
China Resources Comprehensive Utilization
