... appro-priate to the local situation The Air Quality Act of 1967, Public Law 9 0-1 48, November 21, 1967 • Designated air quality control regions (AQCRs) within the USA, eitherinter- or ... thirty parts; malaria, ten parts; gas leaks, twenty parts; dewdropsgathered in a brick-yard at sunrise, twenty-five parts; odor of honeysuckle, fifteen parts.Mix. The mixture will give you a approximate ... mixture of particulates, oxides of nitrogen, sulfuric-acid mistcondensed from the oxidation of sulfur dioxide, and particles produced from pho-tochemical reaction in the atmosphere. The haze limits...