摘要
目的探讨不同居室特征对室内甲醛浓度的影响,为室内甲醛污染防治提供依据。方法选取兰州市城关区28户不同居室特征的住宅,分别在采暖季与非采暖季入户采集甲醛样本、测定室内温度和湿度,通过问卷调查的形式调查房屋某些特征。结果采暖季(0.062 mg/m3)和非采暖季(0.030 mg/m3)28户住宅室内甲醛浓度的中位数差异有统计学意义(u=188.500,P<0.05);采暖季每天通风时间不足3 h与通风时间超过3 h的住户室内甲醛浓度差异有统计学意义(u=50.500,P<0.05),非采暖季不同墙壁装修类型(H=7.562)和不同室内温度(rs=0.373)的室内甲醛浓度差异均有统计学意义(P<0.05)。多因素分析结果显示,在采暖季,每天通风时间和墙壁装修类型影响甲醛浓度;在非采暖季,温度影响甲醛浓度。结论不同居室住宅特征影响室内甲醛浓度,应在采暖季增加每天的通风时间。
Objective To explore the influencing factors of indoor formaldehyde level in different residential characteristics and to provide basis for prevention and control of indoor formaldehyde pollution.Methods Indoor formaldehyde,temperature and humidity level in 28 households in Chengguan district of Lanzhou were measured during heating period and non-heating period respectively.Residential characteristics were investigated by questionnaire survey.Results The difference in indoor formaldehyde level between heating period(0.062 mg/m3)and non-heating period(0.030 mg/m3)was statistically significant(u=188.500,P<0.05).In heating period,there was statistical difference in indoor formaldehyde level between the hours of ventilation less than 3 hours and more than 3 hours per day(u=50.500,P<0.05).In non-heating period,the difference in indoor formaldehyde level was statistical(P<0.05)among the type of wall decoration(H=7.562)and indoor temperature(rs=0.373).The results of multivariate analysis showed that in heating period,the hours of ventilation per day and the type of wall decoration affected the indoor formaldehyde level,while in non-heating period,indoor formaldehyde level was influenced by indoor temperature.Conclusions The indoor formaldehyde level is affected by different residential characteristics.It is suggested that the hours of ventilation per day should be increased in heating period.
作者
李盛
樊琳
王先良
吴允萍
李昕蓉
王金玉
LI Sheng;FAN Lin;WANG Xian-liang;WU Yun-ping;LI Xin-rong;WANG Jin-yu(The First People's Hospital of Lanzhou City,Lanzhou,Gansu 730050,China;不详)
出处
《疾病预防控制通报》
2021年第3期18-20,27,共4页
Bulletin of Disease Control & Prevention(China)
基金
国家自然科学基金(21976169)
甘肃省科技计划资助(20CX9FA134)
兰州市人才创新创业项目(2020-RC-42)。
关键词
居室特征
室内甲醛
影响因素
Residential characteristics
Indoor formaldehyde
Influencing factor
