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Modeling of Traffic-related Air Pollution at Urban Scales
Citation:
Isakov, Vladilen. Modeling of Traffic-related Air Pollution at Urban Scales. 2019 EU-US Webinar Series on Passive Air Pollution Mitigation, online, June 27, 2019.
Impact/Purpose:
The webinar series, hosted by Trinity College Dublin, Cornell University and U.S. EPA, brings together experts to share information about passive mitigation of air pollution in the built environment. The 4th monthly webinar takes place next Thursday 27th June 2019, entitled 'Urban Design: Informing change through Advancements in Modelling' The speakers for this webinar include: Dr Stijn Janssen, VITO NV, Belgium; Dr Vera Rodrigues, University of Aveiro, Portugal; Dr Vlad Isakov, U.S. EPA, USA. There are ~300 registrants for this event so far, representing 35 countries, and near 2,000 registrants from more than 60 countries for the four webinars of the Spring/Summer series.
Description:
The presentation will focus on dispersion modeling, explaining how modeling could help to study near-source pollution and to explore potential benefits of roadside vegetation barriers. Regulatory and urban planning programs require an accurate evaluation of how traffic emissions transport and disperse from roads to fully determine exposures and health risks. Roadside vegetation barriers have shown the potential to reduce near-road air pollution concentrations; however, the characteristics of these barriers needed to ensure pollution reductions are not well understood. U.S. EPA conducted several field experiments to understand the effects of vegetation barriers on dispersion of pollutants near roadways (e.g. 2008 mobile monitoring study in Chapel Hill, North Carolina and 2014 mobile monitoring study in San Francisco Bay Area, California). The results of these field studies were used to evaluate dispersion models in simulating the effects of near road barriers and to develop recommendations for model improvements. The improved models can be used for evaluating the effectiveness of vegetation barriers as a potential mitigation strategy to reduce exposure to traffic-related pollutants and their associated adverse health effects. This presentation shows the results of the analysis of the field studies and discusses the applicability of dispersion models to simulate the impacts of vegetation barriers.
URLs/Downloads:
https://www.tcd.ie/civileng/air-pollution-webinar-series/webinar-presentations/Vlad-Isakov.pdf