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Urban Air Pollution from Vehicular Emissions

Urban Air Pollution from Vehicular Emissions

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Pollutant	Source of emission	Contribution (per cent) of	Remarks
		the source to total emissions
Carbon monoxide	Petrol-driven vehicles	85.0	Contribution of two-wheelers
			is expected to rise
Unburnt hydrocarbons	Two- and three-wheelers	35 to 65	----
Nitrogen oxides	Diesel-driven vehicles	90 or more	----
Particulates	Diesel-driven vehicles	----	----

Source: Teri Energy Data Directory & Yearbook, 1996/97

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