Abstract
This study investigates the contributions of four major emission sources—industry, road traffic, shipping and residential heating—on air quality in the harbour city of Hamburg using a local-scale modelling system comprising meteorological, emissions and chemical transport models. Moreover, human exposure with regard to the overall air quality and the emissions sources under investigation was calculated. Based on detailed emission inventories and an evaluated CTM system, this study identifies road traffic as a major source of PM2.5 pollution and exposure during the entire year and in almost all populated areas in Hamburg. Overall, the highest contributor to PM2.5 concentrations is the industrial sector focussing on less populated areas.
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