新装修居室空气中甲醛污染状况研究  

Investigation on formaldehyde pollution in newly decorated rooms

作　　者：彭西英[1] 李洪波[1] 卢秀娟[1] 杜娟[1] 陈刚[1] 宋小琴[1] 蒋励[1] 张建华[1] 

机构地区：[1]贵州省疾病预防控制中心,贵阳550004

出　　处：《微量元素与健康研究》2017年第5期55-56,共2页Studies of Trace Elements and Health

基　　金：贵州省疾病预防控制中心科学基金/青年基金项目[2015-E-3]

摘　　要：目的:了解新装修居室空气中甲醛污染状况。方法:采用酚试剂分光光度法对贵阳市装修完工1年以内的60户住户室内空气中甲醛浓度进行测定和评价。结果:共调查了69间卧室,在密闭条件下有60间卧室空气中甲醛浓度超过国家卫生标准,超标率为86.96%,通风条件下,有16间卧室超过国家卫生标准,超标率为23.19%,显著低于密闭状态;装修完工3个月内的有22间,密闭时室内甲醛超标率达100%,装修完工4~6个月的有27间,密闭时甲醛超标率为88.89%,装修完工7~12个月的有19间,密闭时甲醛超标率为73.68%,随着装修时间的延长,室内空气中甲醛的平均浓度降低,超标率下降。结论:新装修居室室内空气中甲醛超标率高,通风能显著降低室内甲醛浓度。随装修时间的延长,室内甲醛浓度降低。Objective： To understand the status of formaldehyde pollution in newly decorated rooms. Methods： We tested and evaluated formaldehyde concentration in indoor air of 60 households in Guiyang,which was completed in 1 years,by phenol reagent spectrophotometry. Results： We had investigated 69 bedrooms. 60 bedroom’s formaldehyde concentrations were exceeding the national health standards under closed conditions,the exceeding standard rate was 86. 96%. 16 bedroom’s formaldehyde concentrations were exceeding the national health standards under under ventilation conditions,the exceeding standard rate was 23. 19%,which was lower than the closed state significantly. 22 rooms’ renovation was within 3 months,and all of their formaldehyde concentration had exceed the standard under closed conditions,the over-standard rate was 100%. 27 rooms’ renovation was within 4 ~ 6 months,the over-standard rate was 88. 89% under closed conditions. 19 rooms’ renovation was within7 ~ 12 months,the over-standard rate was 73. 68%under closed conditions. Average concentration of formaldehyde in indoor air decreased,and the exceeding standard rate decreased,too,with the extension of the decoration time. Conclusion： The exceeding standard rate of formaldehyde in indoor air of newly decorated rooms was high. Aeration could significantly reduce the formaldehyde concentration in indoor air. The formaldehyde concentration indoor decreased as time goes on.

关 键 词：室内空气污染 甲醛 超标率 

分 类 号：X51[环境科学与工程—环境工程]