【摘要】 [目的]了解室内空气中甲醛污染的累加效应。[方法]选择6家宾馆、4家洗浴中心、10户居民住宅为研究对象,采用4160型甲醛分析仪分别测定室内和局部储物空间的甲醛浓度随时间递增的变化。[结果]甲醛浓度随时间延长(1h、6h、24h)而累积升高,平均超标倍数分别是(1.0±0.40)倍、(2.4±0.83)倍和(3.5±0.76)倍(P<0.05)。[结论]累加效应是造成某一相对封闭空间内甲醛浓度超标的首要因素,局部相对封闭小空间的甲醛污染亦应该受到重视。甲醛污染浓度明显超过国家标准,对食品的储藏、人体的健康都将产生不良影响。更多还原

【Abstract】 [Objective]To study the accumulation effect of the indoor air polluted by formaldehyde.[Methods]Indoor air in the rooms of hotels,public baths,and inhabitants houses were sampled for the detection of formaldehyde concentration after a certain time of sealing the room by closing all windows and doors.[Results]The concentration of formaldehyde in the rooms increased as the sealing time of the room elongated.It was(1.0±0.40)times,(2.4±0.83)times,and(3.5±0.76)times of the national standard value at 1 hr,6 hr,and 24 hr of sealing respectively(P<0.05).[Gonclusion]The accumulation effect is the main reason of increasing of the concentration of formaldehyde in room air.The higher concentration of formaldehyde will cause serious influence to food storage and adverse effect to human health.更多还原