二氧化氮对天津市河东区室内空气品质的影响

Effects of nitrogen dioxide on indoor air quality in Hedong District of Tianjin

目的了解室内二氧化氮(NO2)的产生原因,分析对室内环境的影响,对室内环境检测工作起到提示作用。方法在天津市河东区内随机选取6组家庭,于2018年1-11月连续检测家庭室内NO2浓度并分析。结果抽取的6组家庭中,3组家庭NO2检测浓度明显高于其他3组,且冬、春季居高。结论 NO2作为室内空气污染物之一,具有刺激性气味,可引发人体呼吸系统各类疾病,其产生与烹饪、吸烟、取暖材料等密切相关。NO2作为强氧化性物质,易与室内多种物质发生化学反应,产生有害物质。应采取措施预防或减少室内NO2的产生,提高室内空气质量,避免对健康的损害。

Objective To understand the causes of indoor nitrogen dioxide(NO2),analyze the effects on indoor environment,and give a suggestion to the indoor environment detection.Methods 6 groups of families were randomly selected in Hedong District of Tianjin,and indoor NO2 concentration was measured and analyzed continuously from January to November 2018.Results Among the six groups of families,the NO2 concentration in three groups were significantly higher than those in the other three groups,and it was higher in winter and spring.Conclusion NO2,as one of indoor air pollutants,has a pungent odor and can cause various diseases of the human respiratory system.Its production is closely related to cooking,cigarettes,heating materials.NO2,as a strong oxidizing substance,easily reacts with many substances in the room to produce harmful substances.Measures should be taken to prevent or reduce the production of indoor NO2,improve indoor air quality and avoid damage to health.