海口市装修居室内空气中甲醛浓度调查

Investigation on indoor formaldehyde level of new decorated apartments in Haikou

目的了解海口市装修居室内空气中甲醛的污染水平。方法在2015年5月对100户装修居室内空气中的甲醛浓度进行现场检测,对装修后不同时间、不同房间类型的检测结果进行统计学分析。结果装修居室内空气中甲醛总体浓度范围为0.016~0.263 mg/m^3,平均浓度为0.076 mg/m^3,总超标率为39.0%。装修1年内室内甲醛超标率为52.2%,平均浓度为0.095 mg/m^3,明显高于装修时间为1~3年和≥3年的室内甲醛浓度,差异均具有统计学意义,P<0.05)。客厅的超标率最高为42.0%,厨房的超标率最低为36.0%,卧室的超标率为38.0%,随着装修时间的延长,客厅、厨房和卧室空气中的甲醛超标率呈逐渐下降的趋势。结论新装修居室内甲醛污染较严重,应加强通风及采取有效措施降低甲醛浓度,以减少甲醛污染的危害。

Objective To understand the pollution level of formaldehyde in indoor air of decorated rooms in Haikou.Methods A total of 100 rooms in newly decorated apartments were selected in May 2015, and the concentration of indoorFormaldehyde was determined by field detection. The results were classified and analyzed by time and room type. Results The formaldehyde content was 0.016~0.263mg/m^3, and the average concentration was 0.076mg/ m^3 and the total with 39%exceeding standard rate was 39%. The overall non-compliance rate of indoor formaldehyde level in Haikou was 52.2%, averageconcentration was 0.095 mg/m^3, it was significantly higher than that with the decoration of time for 1 to 3 years and more thanor equal to 3 years of indoor formaldehyde concentration. The difference showed statistical significance（variance analysis andleast significant difference,LSD, P〈0.05）.Then carries on the analysis according to the room type, living room had the highestnon-compliance rate（42.0%）, whereas kitchen was the lowest（36%）. Bedroom exceeding the rate was 38%, with the extensionof the decoration time, the living room, kitchen and bedroom air formaldehyde standard rate showed a gradual downward trend.Conclusion The indoor air pollution by formaldehyde was significant. Enhancing ventilation after decoration is conducive toreduce the content of formaldehyde.