The paper discusses the types of smog, the differences between London pariculate and Los Angeles photo-chemical smog, the Los Angeles County regulations and the California State laws on exhaust and crankcase control devices; It describes briefly how exhaust contaminants and crankcase emissions can be reduced and the cost of devices.
Toxicity aspects, including the work of the U. S. Public Health Service are discussed; The individual and cooperative activities of the oil industry in minimizing air pollution and the research efforts to find sound technical solutions are described. The paper concludes with comments on future trends and the tremendous challenge to various technologies.
