Investigation of Environmental Risk Factors for Metro Station Staffs Attacked with Sphagitis and Rhinitis / 环境与健康杂志

ABSTRACT

Objective To investigate the sanitary condition in the inside and outside of a metro station in Guangzhou, and to find the environmental risk factors which can affect the health of staffs of the metro station. Methods To monitor the level of TVOC, inhalable particles, carbon monoxide, benzene, carbon dioxide, formaldehyde and total bacterial count in the air of public places metro hall, metro platform,facilities rooms, tunnel gates, new flow entrances and entrances of subway station respectively in the afternoon and evening, Feb 15, 2006. Results The rate of exceeding standard limit of the pollutants in metro station in the evening was higher than that in the afternoon, and the main items exceeded the limit were inhalable particles, benzene and carbon monoxide, especially in the evening. The level of inhalable particles in the metro hall and facilities rooms both exceeded standard limit. The level of every pollutant in the inside and outside of the station in the evening was higher than that in the afternoon P