Key Quotes:
“The aim of the study was to quantify differences in exposure to air pollutants in traffic compared to simultaneously measured urban background concentrations, and to examine the differences in air pollution exposure associated with commuting by car, bus and bicycle.“
“a significant portion (up to 30%) of air pollutants in (school) buses is due to self-pollution..Open windows during driving, idling of the bus and opening of bus doors lead to higher in-bus exposures“
“On average, the minute ventilation of cyclists was 2.1 times higher than that of car passengers and 2.0 times higher than that of bus passengers…Inhaled doses of all air pollutants were highest in cyclists“
“Exposures were higher in diesel buses than in electric buses, and higher along high-traffic bicycle routes compared to low-traffic bicycle routes“
“Cyclists on the high-traffic route were exposed to 40% higher levels of PNC and 35% higher levels of soot compared to the low-traffic route.“
“City planners should create bicycle lanes with less (preferably: no) contact with motorised traffic.“
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