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为了解大型商场室内环境空气质量各项指标的动态变化。于2012年1月9日到2012年12月22日利用无线传输技术,通过在线监测,收集某大型商场(卖场、美食城)的空气质量各项指标每日24 h动态数据,主要指标包括:可吸入颗粒物(PM10)、甲醛、一氧化碳(CO)、二氧化碳(CO2)、温度、湿度。结果显示卖场以甲醛污染时间最长、污染最严重,全年有8周浓度超标;其次是PM10和CO,全年各有1周超标;相对湿度在5月中旬至9月中旬达标,其余时间段较均低于国标下限;其它指标未出现不合格结果。提示在线监测技术和传输方法能够提供室内空气质量连续、动态数据,为了筛选环境中主要污染物并及时发现空气污染较重的时段,为风险预警提供基础数据。
In order to understand the indoor shopping mall environment air quality indicators of the dynamic changes. From January 9, 2012 to December 22, 2012, using wireless transmission technology, through online monitoring, we collected dynamic data of 24 h daily air quality indicators of air quality in a large shopping mall (store and food court). The main indicators include: Respirable particulate matter (PM10), formaldehyde, carbon monoxide (CO), carbon dioxide (CO2), temperature and humidity. The results showed that the store formaldehyde pollution the longest time, the most polluting, the annual concentration of 8 weeks exceeded; followed by PM10 and CO, annual 1 week exceeded; relative humidity in mid-May to mid-September compliance, the rest of the time Paragraph lower than the national standard lower limit; other indicators did not appear unqualified results. It is suggested that on-line monitoring techniques and transmission methods can provide continuous and dynamic data on indoor air quality. In order to screen the main pollutants in the environment and timely find out the period of heavy air pollution, provide basic data for early warning of risks.