Pedestrians could reduce the amount of traffic pollution they breathe in simply by crossing the street, according to the latest research from the University of Leeds.
The research revealed that air pollution levels change dramatically within small geographical areas dependent on wind patterns, the location of traffic queues and the position and shapes of the surrounding buildings. The findings showed that pollution hotspots tend to accumulate on the leeward side of the street, (the sheltered side) in relation to the wind’s direction at roof-top level.
Also carbon monoxide levels were up to four times lower in parallel side streets compared to the main road.
The researchers monitored traffic flow and carbon monoxide (CO) levels over an eight week period at one of the busiest junctions in the UK – the intersection between Marylebone Road and Gloucester Place in West London.
[Source]
Chapter: Health :: 4 March 2010
