A Moderation effect of atmospheric conditions on PM<sub>2.5</sub> traffic related concentration-Reference-Cited by-同舟云学术

A Moderation effect of atmospheric conditions on PM_2.5 traffic related concentration

Published:2023-07-01 Issue:1 Volume:12 Page:1-17
ISSN:2286-2218
Container-title:Romanian Journal of Transport Infrastructure
language:en
Short-container-title:

Author:

Roșca Eugen¹,Ruscă Florin²,Dinu Oana³,Burciu Ștefan⁴,Oprea Cristina⁵,Ilie Anamaria⁶,Coman Cătălin⁷

Affiliation:

1. 1 Professor, University Politehnica of Bucharest , Romania

2. 2 Associated Professor, University Politehnica of Bucharest , Romania

3. 3 Associated Professor, University Politehnica of Bucharest , Romania

4. 4 Associated Professor, University Politehnica of Bucharest , Romania

5. 5 Lecturer, University Politehnica of Bucharest , Romania

6. 6 Lecturer, University Politehnica of Bucharest , Romania

7. 7 Ph.D. student, University Politehnica of Bucharest , Romania

Abstract

Abstract The paper highlights the contribution of the road traffic to PM2.5 air pollution, taking in consideration the atmospheric parameters. But, despite other studies, temperature and relative humidity are considered as moderating variable. The concentration of particulate matter is also influenced by local geography, urban structure, and streets shape. The case study was done in Bucharest, in an open area. The PM2.5 air concentration time series is proved stationary, an autoregressive model with two lags being tested. While the main effects of road traffic and humidity are significant, temperature has not a significant direct effect. But both moderators show interactive effects. The conditional effects are getting down with increase in temperature and humidity, due to changes in air dynamics and precipitation phenomena.

Publisher

Walter de Gruyter GmbH

Subject

Ocean Engineering,Safety, Risk, Reliability and Quality

Link

https://www.sciendo.com/pdf/10.2478/rjti-2023-0007

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