半封闭式大型综合客运枢纽中空气污染状况调查

Air Pollution in Semi-enclosed Large-scale Comprehensive Passenger Transport Hubs

目的了解不同季节半封闭式客运交通枢纽内空气中各种污染物的污染水平及分布特征。方法在半封闭式客运交通枢纽内外选取不同监测点,在不同时间里对一氧化碳、非甲烷总烃、氮氧化合物、二氧化硫和可吸入颗粒物的浓度进行监测。结果枢纽内汽车尾气的污染高于枢纽外露天站台,尤以冬、夏季、上、下班高峰期污染为严重,枢纽内主要污染物为氮氧化物,其浓度均值(1.71±1.07 mg/m3)。结论目前半封闭客运交通枢纽内空气污染状况不容忽视,建议相关部门尽早制定相关标准,保护人体健康。

Objectives To investigate the concentration and distribution characteristics of pollutants in large- scale comprehensive passenger transport hubs. Methods Detecting the concentration of carbon monoxide （CO） , non-methane hydrocarbon （ NMHC）, nitrogen oxides （ NOx）, sulfur dioxide （ SO2 ） and particulate matter （ PM10 ） at different monitoring sites inside and outside of hubs during different seasons. Results The pollutants exhausted from automobile in hubs were higher than those in the open-air sites outside of hubs, especially during winter, sum- mer and rush hours. The major pollutant in hubs was nitrogen oxides; and its average concentration was l. 71 ＋ 1.07 mg/m3. Conclusions The current situation of air pollution in semi-enclosed large-scale comprehensive pas- senger transport hubs could not be ignored; developing relevant standards to protect human health should be as ear- ly as possible.