以空气负离子浓度和耗氧量为室内空气环境监测指标的探讨

An Approch on Using Concentration of Air Negative Ion and Oxygen Consumption as Environmental Monitoring Indexe for Evaluation of Indoor

本文利用空气离子浓度和耗氧量为室内空气质量监测指标,对几家饭店及舞厅进行了监测,结果显示,三个舞厅开场前的CO、CO_2浓度低,耗氧量也低,开场后一小时,CO、CO_2浓度增高,耗氧量也增高。空气负离子浓度与耗氧量呈负相关,r=-0.354(P<0.01),即空气耗氧量越高,负离子浓度越低。空调房间负离子浓度降低,使用现代装璜材料的场所耗氧量高因其含有机物多。我们建议,以上两项可用作空气质量的评价指标。

In this paper,the indoor air quality of several hotelsand dancing halls was evaluated by using of two monitoring indexes.The results showed that the concentration of carbon dioxide of three dancing halls is low before opening,and the oxygen consumption is low too.But after opening an hour,the concentrations of carbon dioxide and carbon monoxide raises with increase of oxygen consumption correlation analysis between the concentration of air-negative ion and the oxygen consumption showed that both is negative correlation,(r=-0.354,P<0.01).The higher oxygen consumption,the lower concentration of negative ion.The concentration of air-negative ion of air-conditioning room is low.The oxygen consumption of some places decorted with modern mountion material is high because it contains much organic matter.We suggest that both indexes above should be used to evaluated the indoor air quality.