Study on Characteristics of Air Pollution at Highway Toll Stations in Dalian, China

摘要

People who work in highway toll station is suffering serve air pollution, due to where vehicles are crowded. So it is important to study the air pollution in highway toll stations. In this study, two toll stations in Dalian were chosen to measure the CO, PM_(10), NO_2 and total hydrocarbon (THC) inside and outside the toll stations. It was found that inside concentrations of PM_(10) exceed China Indoor Air Quality Standard (GB/T1883-2002) and outside concentrations of CO, PM_(10) and NO_2 exceed China Environment Air Quality Standard (GB3095-2012). The factors affecting the air pollution at toll stations were the traffic volume, source of external pollution, including industrial soot pollution and coal-fire nearby, and diffusion.