Black Carbon in Lorraine: sources, geographical origins and model evaluation

摘要

Black carbon is mainly emitted by any combustion process: road traffic, wood andcoal burning, shipping and various industrial combustions. Given, among others,the health effects of air pollution, and that BC is a good tracer and its sanitaryimpacts, monitoring of BC at various scales (remote, rural, urban and traffic) hasnowadays become widespread. The present study uses long-term BCmeasurements in Metz (East of France) to determine the contribution of the twomain sources, traffic and wood-burning, and their seasonalities. Wood-burning, in2015, could represent up to 25% of BC during cold months. In paralell, acomparison with measurements at a rural background site located 80 km South-West of Metz during March 2015 helped to assess the role of backgroundconcentrations to urban air quality during an intense haze pollution event. Finally, amodel evaluation was performed at both sites and showed an air-mass dependenceon the performance of the model.