Levels of exhaust emissions of these pollutants from an engine are dependent upon many factors, and petrol and diesel engine emissions are quite different in nature. The ways in which the different pollutants are measured are given.
In: Road design 2 (specialist topics) : proceedings of seminar W on specialist topics in road design held during the PTRC summer annual meeting, at the university of Warwick, England, 8-12 July 1974, p. 119-145, fig., graph., tab., ref.
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