公共交通工具内PM2.5浓度实测研究

Monitoring and Analysis of the Concentration of PM2.5 in Public Transportations

由于大气中PM2.5对人体健康的危害严重,PM2.5浓度越来越受到人们的关注,而对公共交通工具,如公交车内空气的PM2.5浓度的实测研究很少。公共交通工具人员流动较大且室内空气与室外相通,室外大气中PM2.5浓度势必会对公共交通工具内的室内环境有较大的影响,但公共交通工具空气中PM2.5与室外大气中PM2.5的关系并不明确。针对这些问题,以公交车为研究对象对公共交通工具内环境的PM2.5进行现场实测,分析室外大气中PM2.5浓度与公共交通工具内PM2.5的关系,并提出一些建议。

Because the PM 2.5 in atmosphere are harmful to people's health,research on PM 2.5 has aroused more and more attention.But the measured researches on the concentration of PM2.5 have seldom done in public transportations such as in buses.Personnel flow is larger in public transportations and the indoor air is connected to the outdoor air.Therefore,the outdoor concentration of PM 2.5 will affect the indoor environment in public transportations,but the relation between the concentrations of PM 2.5 in public transportations and in atmosphere still remains unclear.This paper focuses on the concentration of PM2.5 in bus,to get the field measurement of the concentrations of PM 2.5 in public transportations,and analyze the relationship between the concentrations of PM 2.5 in public transportations and outdoor air.In the end,some advises were given.