2013年北京市某商场空气质量监测与分析

发布时间：2018-04-14 23:10

本文选题：空气质量 + 商场　；参考：《环境与职业医学》2015年06期

【摘要】：[目的]了解某大型商场的空气质量状况,分析其变化规律及影响因素。[方法]于2013年对北京市某商场空气质量进行监测,监测点为2个商品售卖区和1个餐饮区,监测指标包括温度、湿度、可吸入颗粒物(PM10)、甲醛、一氧化碳(CO)、二氧化碳(CO2),通过远程数据传输技术收集数据并分析。[结果]监测指标中,CO2合格率(100%)最高;其次是温度、PM10、CO和甲醛,合格率分别为98.82%、96.81%、84.73%、69.41%;湿度合格率最低(仅29.36%)。商场内不同季节湿度变化明显(P0.05);PM10浓度与室外PM10浓度、客流量存在正相关(r=0.681,r=0.162;P0.05);餐饮区CO和CO2浓度高于其他2个监测点,浓度较高的时段与营业高峰时段一致;甲醛浓度波动较大,甲醛最高浓度达0.214 mg/m3,与商场内湿度呈正相关(r=0.740,P0.05),不同监测点甲醛浓度差异有统计学意义(P0.05)。[结论]PM10、CO、甲醛是该商场空气质量的主要危害因素。室外PM10浓度和客流量是影响商场内PM10浓度的主要因素;餐饮活动是CO的主要污染来源,客流量增加引起餐饮活动增多间接影响CO浓度;甲醛污染在商场内持续存在,湿度升高加速甲醛释放,局部装修加剧污染程度。商场应采取集中空调分区域运行,及时调整新风量等措施提高空气质量。
[Abstract]:Objective: to understand the air quality of a shopping mall and analyze its changing law and influencing factors.[methods] the air quality of a shopping mall in Beijing was monitored in 2013. The monitoring points were two commodity selling areas and one dining area. The monitoring indexes included temperature, humidity, PM10, formaldehyde.Carbon monoxide (CO) and carbon dioxide (CO _ 2) are collected and analyzed by remote data transmission technology.[results] the qualified rate of CO _ 2 was the highest in the monitoring index, followed by the temperature, PM10CO and formaldehyde, the qualification rates were 98.82% and 96.81%, respectively, and 69.41%, and the humidity rate was the lowest (29.36%).In different seasons, the change of humidity in shopping mall was obvious, the concentration of P0.05 / PM10 and the concentration of outdoor PM10 were positively correlated with the passenger flow, the concentration of CO and CO2 in catering area was higher than that of the other two monitoring points, and the concentration of CO and CO2 in the dining area was higher than that in the other two monitoring points, and the concentration of formaldehyde fluctuated greatly during the period when the concentration was higher than that in the peak period.The highest concentration of formaldehyde was 0.214 mg / m ~ (3), which was positively correlated with the humidity in the market. The difference of formaldehyde concentration in different monitoring points was statistically significant (P 0.05).[conclusion] PM10 COand formaldehyde is the main harmful factor of air quality.Outdoor PM10 concentration and passenger flow are the main factors affecting PM10 concentration in shopping malls. Catering activities are the main source of CO pollution. The increase of catering activities indirectly affects CO concentration. Formaldehyde pollution persists in shopping malls.Humidity increases to accelerate the release of formaldehyde, local decoration to increase the degree of pollution.Shopping malls should take measures to improve air quality, such as centralized air conditioning sub-regional operation and timely adjustment of fresh air volume.
【作者单位】：朝阳区疾病预防控制中心环境卫生科;北京市疾病预防控制中心环境卫生所;
【基金】：国家标准项目(编号:20130103/GB/T)
【分类号】：R122.1

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