西安市民用建筑室内氨污染现状分析

Studies on Civil Buildings' Indoor Ammonia Pollution Status in Xi'an City

采用纳氏试剂分光光度法分别对西安市刚装修完的建筑、装修完3个月后准备入住的建筑和没有装修的毛坯房进行了室内氨气浓度检测。结果表明,毛坯房和刚装修完的建筑所有房间氨浓度均有不同程度的超标,而装修完3个月后的建筑室内氨浓度除个别样本外基本全部达标。通过持续跟踪检测发现,室内氨气浓度受通风时间和温度的影响显著,而相对湿度对氨气浓度变化影响较小。

By using the method of Nessler＇s reagent Spectrophotometry, this paper makes the indoor ammonia concentration detection for three kinds of buildings in Xi＇ an including the buildings that were just decorated, the buildings that were decorated for three months and ready to move in, and the buildings that were not decorated. The results show that the ammonia concentrations in all rooms of the buildings that were not decorated and the buildings that were just decorated exceeded the standards at different extents, and the indoor ammonia concentrations in all rooms of the buildings that were decorated for three months, except a few samples, basically up to standards. Through continuous tracking, we find that the influence of ventilation time and temperature on indoor ammonia concentration was obvious while the effect of relative humidity on ammonia concentration was less.