室内装修后空气耗氧量及其影响因素分析

Chemical Oxygen Demand in Decorated Apartment Air and its Affection Factors

目的 :研究装修结束后不同时间居室空气中化学耗氧量 ( COD)的变化及自然通风换气对室内空气的影响以及 COD与 CO、CO2 浓度之间的关系。方法 :选择装修十年以上 (对照组 )、装修一年左右、装修三个月左右、正在装修的住宅 ,分别测定通风前后居室空气中的 COD、CO、CO2 的浓度变化。结果 :装修结束后的不同时间 ,室内空气 COD浓度明显不同 ( P<0 .0 5 ) ;通风换气可使空气耗氧量明显降低 ;装修的住宅内空气 COD与 CO、CO2 浓度之间没有明显的相关性。结论

Objective:To observe the difference of chemical oxygen demand (COD) under different condition of decoration. Methods:To select the apartments of different time after decoration and measure the concentrations of COD, CO,and CO 2 before and after ventilation in indoor. Results:The COD in decorated apartment was chiefly related with the variety time after decoration, ventilation and it has no relativity with the concentrations of CO, CO 2. Conclusion:The COD can be applied for evaluation of pollution in decorated apartment.