杭州地铁1号线颗粒物污染水平监测与分析  

Monitoring and analysis of particulate matter pollution level in Hangzhou Metro Line 1

作　　者：夏凤毅 王馨 叶丹 唐庆 XIA Feng-yi;WANG Xin;YE Dan;TANG Qing(School of Quality and Safety Engineering,China Jiliang University,Hangzhou 310000,China)

机构地区：[1]中国计量大学质量与安全工程学院,杭州310000

出　　处：《安全与环境学报》2023年第1期204-210,共7页Journal of Safety and Environment

基　　金：沈阳市科计划项目(20-206-4-07)。

摘　　要：为更好地了解杭州地铁运行环境,于2021年7月采用实地监测的方法对杭州地铁1号线部分车站站厅、站台、车厢内的PM1、PM_(2.5)以及PM_(10)的质量浓度进行了监测。结果显示,杭州地铁现有空调通风设备能够较好地控制车站及列车内颗粒物的质量浓度,仅PM_(2.5)最高质量浓度(67.7μg/m^(3))超出国家一级标准;站台颗粒物的质量浓度普遍高于站厅颗粒物质量浓度,且两者相关性强;地铁运行时车厢内PM1、PM_(2.5)以及PM_(10)的质量浓度变化平稳,客流量对PM2.5的质量浓度变化没有显著影响,两者相关性低;各地铁车站站厅ρ(PM_(1))/ρ(PM_(2.5))均值为0.73,站台ρ(PM_(1))/ρ(PM_(2.5))均值为0.74,站厅ρ(PM_(2.5))/ρ(PM_(10))均值为0.88,站台ρ(PM_(2.5))/ρ(PM_(10))均值为0.87,表明地铁环境中存在的主要污染物为细颗粒物。To better understand the operating environment of Hangzhou Metro,the concentrations of PM_(1),PM_(2.5)and PM_(10)in some station halls,platforms and carriages of Hangzhou Metro Line 1 were monitored by field monitoring in July 2021.The results show that the existing air conditioner and ventilation equipment of Hangzhou Metro Line 1 can better control the concentration of particulate matter in stations and trains,and only the highest concentration of PM_(2.5)(67.7μg/m^(3))exceeded the national first-class standard;The concentrations of PM_(1),PM_(2.5),and PM10 in the platform were generally higher than those in station hall,and the correlation between them is strong(R^(2)=0.795,0.804);During subway operation,the concentrations of PM1,PM_(2.5)and PM_(10)in the carriage changed steadily.To explore the relationship between passenger flow and particle concentration,the passenger flow and particle concentration in subway stations were monitored on the spot,and the relationship between passenger flow and PM_(2.5)in the subway station was studied.It is found that the correlation coefficient r was 0.196 and the significance p-value was 0.502,which proved that passenger flow and PM_(2.5)concentration change were not related.In addition,we researched the proportion of fine particles in particulate matter,ρ(PM1)/ρ(PM_(2.5))of each subway station hall is 0.72-0.75,with an average of 0.73;Platformρ(PM1)/ρ(PM_(2.5))is 0.73-0.75,with an average of 0.74;ρ(PM_(2.5))/ρ(PM_(10))in the station hall is 0.87-0.89,with an average of 0.88;Platformρ(PM_(2.5))/ρ(PM_(10))is 0.86-0.88,with an average of 0.87,which indicated the main pollutants in the subway environment are fine particles.The innovation of this paper is to study the particulate matter pollution level of Hangzhou Metro for the first time and explored the relationship between particulate matter concentration,the relationship between passenger flow and particulate matter concentration,and the proportion of fine particulate matter in particulate matter.

关 键 词：环境学 PM10 PM2.5 杭州地铁环境 站厅站台 车厢 

分 类 号：X513[环境科学与工程—环境工程]