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چکیده
This Chapter covers the emissions of airborne particulate matter (PM) from road transport which are due to vehicle tyre and brake wear (SNAP code 070700) and road surface wear (SNAP code 070800). PM emissions from vehicle exhaust are not included. The focus is on primary non-exhaust particles in other words those particles emitted directly as a result of the wear of surfaces and not those resulting from the resuspension of previously deposited material. The sources of such PM emissions are considered in relation to the general vehicle classes identified in the Road Transport Chapter of the Guidebook (SNAPS 0701-0705), these being passenger cars, light-duty trucks, heavy-duty vehicles and two-wheelers.
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