Comparison of exposure to traffic-related pollutants on different commuting routes to a primary school in Jinan, China

Abstract

Traffic-related pollutants seriously affect human health, and the commute time to and from school is the time when students are exposed greatest to traffic pollution sources. Field measurements were conducted with hand-held instruments while walking along two selected commuting routes in winter and spring. The measured data were then compared with background monitoring data, and the respiratory deposition dose (RDD) was calculated to assess the exposure risk. Particulate matter intake from 2018 to 2020 was calculated. In winter, the average concentrations of PM 2.5 and PM 10 were higher in the afternoon than in the morning. The highest concentration was 2.94 times greater than the background value. The lowconcentration distribution area of the low-traffic route that is off the main road (route B) was more significant than that of the high-traffic route that is near the main road (route A). Moreover, the RDD of route B was consistently lower than that of route A, while the average annual amount of PM 2.5 inhalation on route B in 3 years was 16.3% lower than that on route A. Overall, route B is more suitable than route A for students to commute on foot. Based on the findings, a walking route located within a community is a good choice.

Exposure Assessment of Traffic-Related Air Pollution Based on CFD and BP Neural Network and Artificial Intelligence Prediction of Optimal Route in an Urban Area

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Numerical Simulation of the Ventilation and Fire Conditions in an Underground Garage with an Induced Ventilation System

“…The exhaust emissions from running vehicles contain a significant amount of pollutants. Transportrelated pollutants have a significant impact on human health [8], and the effects of traffic pollution on human health are increasingly gaining attention [9,10].…”