北京市公共汽车内PM2.5和PM10污染特征研究  

Study on Pollution Characteristics of PM2.5 and PM10 in Bus in Beijing,China

作　　者：渠美楠 翟宇昕 王可欣 王立鑫[1] Qu Meinan;Zhai Yuxin;Wang Kexin;Wang Li Xin

机构地区：[1]北京建筑大学供热、供燃气、通风及空调工程北京市重点实验室 [2]北京市轨道交通建设管理有限公司设备管理总部

出　　处：《洁净与空调技术》2020年第4期120-125,共6页Contamination Control & Air-Conditioning Technology

基　　金：国家自然科学基金(51378043);北京建筑大学市属高校基本科研业务费专项资金(X18126)。

摘　　要：为探讨北京公共汽车车厢内的颗粒物污染特征,2017年3月—4月,在1路、300路、740路和44路车厢内对温度、相对湿度(RH)、CO2浓度、PM2.5和PM10浓度进行测试。通过相关性和差异性分析,确定PM2.5和PM10浓度的影响因素。研究结果表明,公共汽车车厢内PM2.5和PM10的平均浓度超标率分别为68.0%和54.8%,颗粒物污染情况较为严重。PM2.5和PM10质量浓度范围分别为18μg/m^3~246μg/m^3和34μg/m^3~280μg/m^3。二者呈显著正相关且具有同源性。室外颗粒物浓度对车厢内颗粒物浓度有很大影响。PM2.5和PM10浓度与车速相关且在不同线路上存在显著性差异。应采取措施降低车厢内颗粒物污染,保护人体健康。In order to explore the characteristics of particulate matter pollution in bus in Beijing,some parameters including temperature,relative humidity,CO2 concentration,PM2.5 and PM10 concentrations were tested in buses No.1,No.300,No.740 and No.44 from March to April,2017.Results showed that the exceeding standard rate of PM2.5 and PM10 average concentrations were 68.0%and 54.8%.Particulate pollution in bus is serious.The PM2.5 and PM10 mass concentration ranges are18μg/m^3-246μg/m^3 and 34μg/m^3-280μg/m^3.Both are significantly positively correlated and homologous.Outdoor particle concentrations had a great effect on that in bus.PM2.5 and PM10 concentrations were significantly correlated with vehicle speed and there were significant differences on different lines.Measures should be taken to reduce particulate matter pollution in bus to protect human health.

关 键 词：公交微环境 空气污染 PM2.5 PM10 室内空气品质 

分 类 号：X51[环境科学与工程—环境工程]