中山市室内新装修场所甲醛和苯系物监测结果分析

Analysis on Monitoring Results of Formaldehyde and Benzene Compounds Content in The Newly Decorated Houses in Zhongshan City.

目的了解中山市室内新装修场所的甲醛和苯系物污染状况。方法对新装修后3个月内的场所进行现场监测,监测项目包括甲醛、苯、甲苯和二甲苯,对监测结果进行统计分析。结果中山市室内新装修场所的甲醛、苯、甲苯和二甲苯的平均浓度分别为(0.052±0.054)、(0.069±0.155)、(0.296±1.152)和(0.218±0.226)mg/m3。二甲苯和苯、甲苯的浓度显著相关(P<0.01);甲醛、苯、甲苯和二甲苯的监测点数合格率分别为85.34%、91.81%、83.19%和87.93%;各类场所的监测间数合格率为45%,家居、酒店、展览中心和商场、文化娱乐场所以及办公场所的监测合格率分别为50%、50%、67%、0%和33%。结论中山市室内新装修场所甲醛和苯系物污染严重,需加强对室内新装修场所空气质量的监测与防控。

[ Objective] To study the indoor air formaldehyde and benzene compounds content in the newly decorated houses in Zhongshan city. [ Methods] The newly decorated houses within 3 months were detected, the detected items included formaldehyde, benzene, toluene, dimethylbenzene, and all the results were analyzed. [ Results] The average concentration of formaldehyde, ben- zene, toluene, dimethylbenzene was （ 0. 052 ± 0.054） mg/m^3, （0.069 ±0. 155 ） mg/m^3, （0.296± 1. 152） mg/m^3 and （0.218± 0. 226） mg/m^3 respectively. The concentration of dimethylbenzene was significantly relative with that of benzene and toluene （ P〈 0. 01）. The spot qualified rate of formaldehyde, benzene, toluene, dimethylbenzene was 85.34% ,91.81% ,83.19% ,87.93% respectively. The total qualified rate of places was 45%. The qualified rate of household, cabaret, exhibition hall and marketplace, entertainment public place and office was 50% , 50%, 67% , 0%, 33% respectively. [ Conclusion] Air pollution of formaldehyde and benzene compounds was serious in the newly decorated houses in Zhongshan city. It is necessary to strengthen detection and control of the indoor air in the newly decorated houses.