INTRODUCTION The ultimate goal of this program is the development of a field technique capable of elucidating the contribution of automobile exhaust to atmospheric haze. To attain this goal@ it is necessary to establish the relationship between atmospheric haze and automotive emissions and to discover methods for distinguishing between the man-made and natural hazes. Experimental studies involve measurements of the optical and chemical properties of the atmospheric aerosol and determination of the gaseous pollutants in the atmosphere in which the aerosol is found. As a result of the first year's study@ significant insight has been gained in understanding the nature and magnitude of the problems inherent in specifying the contributing sources for haze.
API 4146-1972 history
1972API 4146-1972 HAZE FORMATION – ITS NATURE AND ORIGIN to ENVIRONMENTAL PROTECTION AGENCY CPA 70-Neg. 172 and COORDINATING RESEARCH COUNCIL CAPA 6-68