昆明地铁环境空气质量检测分析

发布时间：2018-01-06 03:10

本文关键词：昆明地铁环境空气质量检测分析　出处：《云南大学学报(自然科学版)》2017年06期 　论文类型：期刊论文

【摘要】：2014年7月,利用便携监测设备检测了昆明31个地铁站台及车厢内环境空气质量,对空气中砷化氢(As H3)、氨(NH3)、总挥发性有机物(TVOCs)、一氧化氮(NO)、二氧化氮(NO2)进行了检测分析.结果表明:(1)在高架站台(斗南站)与地下站台(东风广场站)气态污染物浓度的对比中,高架站台中As H2、NH3、NO、NO2的质量浓度分别为(117.25±1.94)、(53.93±7.30)、(395.66±5.13)、(89.77±17.82)μg·m-3,且TVOCs体积分数为(63.59±3.61)×10-9,而地下站台5种气态污染物质量浓度分别为(112.21±1.94)、(119.63±3.06)、(398.20±4.62)、(54.23±2.54)μg·m-3和(103.39±3.88)×10-9(体积分数),高架站台中As H3、NH3质量浓度和TVOCs体积分数比地下站台高,而NOx质量浓度高架站台比地下站台低;(2)在站台与车厢内气态污染物浓度的对比中,站台中As H3、NH3、NO、NO2的质量浓度分别为(116.27±1.19)、(106.92±5.50)、(397.71±3.83)、(61.11±4.58)μg·m-3,且TVOCs的体积分数为(95.68±4.29)×10-9,车厢中5种气态污染物的质量浓度分别为(119.63±1.22)、(120.53±2.97)、(384.53±2.71)、(78.83±3.36)μg·m-3和(113.83±4.08)×10-9(体积分数),其中站台的As H3、NH3及TVOCs浓度均明显低于车厢内浓度,而NOx两者相似;(3)在对31个站的监测中发现,As H3在31个站中质量浓度水平相差不大,其中东风广场站的As H3质量浓度最高,为126.81μg·m-3,NH3质量浓度和TVOCs体积分数在环城南路站最高,分别为145.26μg·m-3和155.73×10-9,NOx质量浓度在南部客运站最高,其中NO2质量浓度为158.21μg·m-3.本研究中发现,As H3、NH3和TVOCs浓度变化主要受客流量影响较大,NO、NO2的质量浓度变化主要受地面汽车尾气排放的影响.
[Abstract]:In July 2014, the ambient air quality of 31 subway platforms and compartments in Kunming was detected by portable monitoring equipment. Total volatile organic compounds (TVOCs), nitric oxide (no). The results show that the concentration of as H2 in the elevated platform (Dounan station) and the underground platform (Dongfeng Square station) is compared with that in the elevated platform (Dounan Station) and the underground platform (Dongfeng Square Station). The mass concentrations of NH _ 3N _ 2 were 117.25 卤1.94, 53.93 卤7.30, 395.66 卤5.13, respectively. The volume fraction of TVOCs was 63.59 卤3.61) 脳 10-9. The mass concentrations of five gaseous pollutants in the underground platform were 112.21 卤1.94, 119.63 卤3.06, respectively, 398.20 卤4.62). 54.23 卤2.54 渭 g 路m-3 and 103.39 卤3.88) 脳 10-9 (volume fraction, as H3 in elevated platform). NH3 mass concentration and TVOCs volume fraction were higher than those of underground platform, while NOx mass concentration elevated platform was lower than underground platform. (2) in the comparison of gaseous pollutant concentration between platform and carriage, the mass concentration of as H _ 3H _ 3N _ 3no _ 2 in platform is 116.27 卤1.19). 106.92 卤5.50 渭 g 路m-3, 397.71 卤3.83, 61.11 卤4.58) 渭 g 路m-3. The volume fraction of TVOCs was 95.68 卤4.29 脳 10 ~ (-9) and the mass concentration of five gaseous pollutants was 119.63 卤1.22). 120.53 卤2.97 (384.53 卤2.71). 78.83 卤3.36) 渭 g 路m-3 and 113.83 卤4.08) 脳 10 ~ (-9) (volume fraction, as _ H _ 3 of the platform. The concentrations of NH3 and TVOCs were significantly lower than those in the compartment, while NOx and NOx were similar. In the monitoring of 31 stations, it is found that there is no significant difference in mass concentration of AsH _ 3 in 31 stations, in which the mass concentration of as _ H _ 3 in Dongfeng Square Station is the highest. The mass concentration of NH _ 3 and the volume fraction of TVOCs were 126.81 渭 g 路m ~ (-3) and 155.73 脳 10 ~ (-9), respectively, in Huancheng South Road Station, which were 145.26 渭 g 路m ~ (-3) and 155.73 脳 10 ~ (-9), respectively. The mass concentration of NOx was the highest in the southern passenger station, and the mass concentration of NO2 was 158.21 渭 g 路m-3.In this study, as H3 was found. The change of NH3 and TVOCs concentration is mainly affected by the mass concentration of NONO _ 2, which is influenced by the passenger flow.
【作者单位】：昆明理工大学建筑工程学院;昆明理工大学环境科学与工程学院;
【基金】：国家自然科学基金(21667014,21567012,21207055) 云南省科技厅社会发展科技计划项目(2012CA016)
【分类号】：X51;X831
【正文快照】： 在城市地区,公交系统是最重要的公共交通方式之一,地铁乘客的数量由于其便利性而在不断增加[1-2].在地铁系统中,如制动系统、电力设施和乘客等,会产生各种气态污染物,包括砷化氢(As H3)、氨(NH3)、总挥发性有机物(TVOCs)、一氧化氮(NO)和二氧化氮(NO2)等[3-4].由于地铁站的空

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