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目的监测荆门市新装修住宅室内空气中的主要污染物甲醛、菌落总数、氨、放射线的污染情况,以探讨对人体影响的因素,提出有效的预防控制措施。方法对100户新装修住宅室内空气中的甲醛、氨、菌落总数、放射线进行监测;按室内空气质量标准(GB/T 18883)判断各污染物的超标率。结果荆门市2006—2009年新装修住宅室内空气中甲醛、菌落总数的超标率分别为70.0%,12.99%,污染由重到轻依次是甲醛,菌落总数,氨,放射线。甲醛浓度与相应的采样温度作回归分析,其回归方程为Y=0.045 46+0.005 75 X。结论荆门市新装修住宅环境空气中氨、放射线污染较轻,微生物污染较重,甲醛污染状况最严重,甲醛是室内空气污染的主要物质,须采取净化处理、污染源控制、加强通风等综合措施降低室内空气中甲醛的污染。
Objective To monitor the pollution of formaldehyde, colony, ammonia and radioactive rays in the indoor air of newly renovated residential buildings in Jingmen City to explore the factors affecting the human body and put forward effective preventive and control measures. Methods The total number of formaldehyde, ammonia, colony and radiation in 100 newly renovated residential buildings were monitored. The standard of indoor air quality (GB / T 18883) was used to judge the excessive rate of each pollutant. Results The over-standard rates of formaldehyde and colony in newly renovated residential buildings in Jingmen City were 70.0% and 12.99% respectively from 2006 to 2009, followed by formaldehyde, colony, ammonia and radioactive rays. Formaldehyde concentration and the corresponding sampling temperature for regression analysis, the regression equation Y = 0.04546 + 0.00575X. Conclusions In the newly renovated residential buildings in Jingmen City, ammonia in the ambient air is relatively polluted, the microbial contamination is heavy and the formaldehyde pollution is the most serious. Formaldehyde is the main indoor air pollutant, and the comprehensive measures such as purifying treatment, pollution source control and ventilation are needed to be reduced Indoor air formaldehyde pollution.