【摘要】 目的了解南宁市居室空气质量情况,探讨室内空气中甲醛和总挥发性有机化合物(TVOC)的污染程度和分布情况。方法采用PPM-400ST甲醛检测仪、Pho Check Tiger-PCT有机气体检测仪等测试分析了南宁市典型居室中客厅、卧室、书房的甲醛和TVOC浓度。结果南宁市居室的书房、卧室、客厅中TVOC合格率分别为97.6%、92.9%、100%,甲醛合格率分别为23.8%、26.2%、71.4%;甲醛污染严重的是书房,甲醛质量浓度超过国家标准1~2倍、2~3倍、3倍以上的比例分别为21.4%、31.0%、23.8%,最高质量浓度为0.901 mg/m3,是国家标准的9.0倍。结论室内甲醛、TVOC质量浓度普遍较高,通风及宽敞的室内空间有利于降低污染程度。更多还原

【Abstract】 Objective To analysis the indoor air quality in Nanning and to investigate the species,sources and distribution of contaminants. Methods The concentration of formaldehyde and total volatile organic compounds( TVOC) in bedroom,living room and study room were detected by formaldehyde detector and organic gas detector. Results The qualified rates of TVOC in the study room,bedroom and living room were 97. 6%,92. 9%and 100%,respectively; the qualified rates of formaldehyde were 23. 8%,26. 2% and 71. 4%,respectively. The pollution of formaldehyde in the study room was the most serious,the highest concentration of formaldehyde was0. 901 mg / m3,which was 9. 0 times higher than the national standard limits,and the rates of formaldehyde exceeding the standard limits of 1 to 2 times,2 to 3 times and more than 3 times were 21. 4%,31. 0% and 23. 8%,respectively. Conclusion The concentration of formaldehyde and TVOC in indoor air was general high,which would be effectively reduced by increasing indoor space and ventilation.更多还原