摘要
目的 对比分析贵阳市某高校男女学生寝室内PM_(2.5)浓度及污染特征,了解寝室内PM_(2.5)污染情况。方法 于2022年11月在贵阳市某高校采用方便抽样与自愿响应抽样的方法,抽取4间男生寝室和4间女生寝室,使用中流量总悬浮颗粒物智能采样器采集和分析寝室内外PM_(2.5)浓度,同时记录采样现场的温湿度。结果 学生寝室内外PM_(2.5)浓度M(P25,P75)分别为41.6(32.9,53.9)μg/m^(3)、40.3(33.8,54.9)μg/m^(3),总体均低于标准限值,但室外浓度整体高于贵阳市同时段PM_(2.5)的监测水平。男生寝室内PM_(2.5)浓度M(P25,P75)为46.6(39.4,55.3)μg/m^(3),女生寝室内PM_(2.5)浓度为39.2(31.8,46.0)μg/m^(3),两者差异无统计学意义(U=274.000,P=0.054)。男、女寝室内外PM_(2.5)浓度比值(I/O比值)分别为1.14(1.02~1.26)、0.87(0.78~0.96),男寝室I/O比值大于女寝室,差异有统计学意义(U=149.000,P<0.001)。男、女寝室内PM_(2.5)浓度与室外均呈正相关,且女寝室内PM_(2.5)浓度与室外的相关性较男寝室更高(男寝室r_(s)=0.775,女寝室r_(s)=0.882)。男寝室内PM_(2.5)浓度与室内温度有弱正相关性。结论 贵阳市某高校学生寝室内外PM_(2.5)浓度总体低于标准限值。男寝室有更多的室内污染源,而女寝室内PM_(2.5)污染主要来自于室外污染源,建议针对男女寝室PM_(2.5)污染采取不同的防护措施。
Objective To know the pollution characteristics of PM_(2.5) in male and female student dormitories in a university in Guiyang,thereby gaining a deeper understanding of the PM_(2.5) pollution conditions within these dormitory environments.Methods In November 2022,4 male dormitories and 4 female dormitories were chosen by using convenient sampling and voluntary response sampling methods in a university,Guiyang City.The indoor and outdoor PM_(2.5) data were collected and analyzed by using a medium-flow intelligent total suspended particulate matter sampler,and the temperature and humidity at the sampling site were recorded.Results The indoor and outdoor PM_(2.5) concentrations in student dormitories were 41.6(32.9,53.9)μg/m^(3) and 40.3(33.8,54.9)μg/m^(3),respectively,both remaining below the standard limit.However,the outdoor concentration was generally higher than the PM_(2.5) levels concurrently monitored in Guiyang.The PM_(2.5) concentrations in male and female dormitories were 46.6(39.4,55.3)μg/m^(3) and 39.2(31.8,46.0)μg/m^(3),respectively.No significant difference was observed between the two groups(P>0.05).PM_(2.5) ratios of indoor and outdoor in male and female student dormitories(expressed as I/O)were 1.14(1.02-1.26)and 0.87(0.78-0.96),respectively,which indicated I/O in male student dormitories was greater than that of female student dormitories(P<0.001).Indoor PM_(2.5) of male and female student dormitories were positively correlated with those of outdoor PM_(2.5)(male student dormitories:r_(s)=0.775,female student dormitories:r_(s)=0.882).Indoor PM_(2.5) in the male student dormitories had a weak positive correlation with indoor temperature.Conclusion The indoor and outdoor PM_(2.5) concentrations in the dormitories of a university in Guiyang were generally below the standard limit.Male dormitories exhibited more indoor sources of PM_(2.5),primarily attributable to indoor activities,whereas the PM_(2.5) in female dormitories was predominantly influenced by outdoor sources.Targeted protective measures should be implemented in the future to address PM_(2.5) pollution more effectively in each type of dormitory.
作者
邱育权
仇广乐
阳许
杨涛
郑榜贵
宿敏敏
QIU Yuquan;QIU Guangle;YANG Xu;YANG Tao;ZHENG Banggui;SU Minmin(Key Laboratory of Environmental Pollution Monitoring and Disease Control,Ministry of Education,School of Public Health,Guizhou Medical University,Guiyang,Guizhou 561113,China)
出处
《环境与健康杂志》
2025年第7期589-596,共8页
Journal of Environment and Health
基金
贵州省科技计划项目(黔科合基础-ZK[2023]299)
贵州医科大学高层次人才科研启动基金项目(校博合J字[2020]062号)
大学生创新创业项目(S202210660124,S202310660060)。
关键词
高校寝室
室内
PM_(2.5)
污染特征
差异性
University dormitories
Indoor
PM_(2.5)
Pollution characteristics
Disparities
