2013—2020年深圳市某区室内公共场所空气PM_(2.5)时间分布特征分析  

Time distribution characteristics of PM_(2.5) in indoor public places air in a district of Shenzhen from 2013 to 2020

作　　者：杜海荣 李超 金洪伟 姚炜 DU Hairong;LI Chao;JIN Hongwei;YAO Wei(Guangming District Center for Disease control and Prevention of Shenzhen City,Shenzhen,Guangdong 518106,China)

机构地区：[1]深圳市光明区疾病预防控制中心,广东深圳518106

出　　处：《中国公共卫生管理》2024年第4期578-581,共4页Chinese Journal of Public Health Management

基　　金：深圳市科技计划基金资助项目(JCYJ20180301170716407)。

摘　　要：目的了解室内公共场所不同时间空气PM_(2.5)浓度分布特征,为室内外空气PM_(2.5)治理、预防人体PM_(2.5)暴露危害提供科学依据。方法以深圳市某区室内公共场所PM_(2.5)浓度为研究对象,采用光散射法测定室内公共场所空气PM_(2.5)浓度,采用Kruskal-Wallis H检验进行统计分析。结果2013—2020年,深圳市某区8种室内公共场所空气PM_(2.5)浓度不同,差异有统计学意义(H=93.084,P<0.001);室内公共场所空气PM_(2.5)年平均浓度呈下降趋势(r=-0.964,P<0.05);月均浓度呈“U”型分布,1、2、3、10、11、12月明显高于4、5、6、7、8月,差异有统计学意义(H=215.773,P<0.001)。结论2013—2020年,深圳市某区室内公共场所空气PM_(2.5)浓度明显下降,呈现明显的夏低冬高季节特征。建议继续强化治理,并根据时间和场所的不同实施针对性策略。Objective To study the distribution characteristics of indoor air PM_(2.5) concentration in public places at different times,and provide scientific basis for indoor and outdoor air PM_(2.5) control and prevention of human PM_(2.5) exposure hazards.Methods Taking the PM_(2.5) concentration in indoor public places in a district of Shenzhen as the research object,the light scattering method was used to measure indoor air PM_(2.5) mass concentration in public places,and Kruaskai-Wallis H method was uesd for statistical analysis.Results From 2013 to 2020,the average concentrations of PM_(2.5) in eight types of indoor public places in a certain district of Shenzhen showed statistically significant different(H=93.084,P<0.001).The average annual concentrations of PM_(2.5) in indoor public places air showed a decreasing trend(r=-0.964,P<0.05).The average concentrations of PM_(2.5) in indoor public places air by month showed a U-shaped distribution,and it was significantly higher in January,February,March,October,November and December than in April,May,June,July,August(H=215.773,P<0.001).Conclusion The PM_(2.5) concentrations of indoor public places air in a district of Shenzhen decreased significantly from 2013 to 2020,and presented typical seasonal characteristics of low in summer and high in winter.It is suggested that a strengthen governance should be continued,and implemented a targeted strategies based on different times and locations.

关 键 词：室内公共场所 PM_(2.5) 时间分布 

分 类 号：R122.3[医药卫生—环境卫生学]