Tag Archive for 'Empa Air Pollution & Environmental Technology Laboratory'

Road traffic is one of the main sources of fine particulate matter in the atmosphere

February 4th, 2011 by Empa

Road traffic is one of the main sources of fine particulate matter in the atmosphere, above all when the weather favours the creation of winter smog. Vehicle tailpipe emissions are responsible for just less than half of the fine particles.  The majority of this pollutant is produced by mechanical wear and resuspension of dust due […]