LOWER speed limits introduced on high-pollution stretches of the Welsh motorway system have cut in half the levels of harmful emissions in local areas.

Figures obtained via Freedom of Information request by Highways magazine found that, on lengths of motorway in Wales limited to 50mph by speed cameras, levels of toxic emissions fell by up to 47%. It has already been announced that officials in England are planning to implement similar systems.

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UK Study Finds Lower Speed Limits Cut Emissions In Half - Throttling Of More Highways Planned

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