The City: Curbing the Fumes

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When it comes to air pollution, engineers have long pointed an accusing finger at the automobile. Last week the significant reports were in. Based tests made in California on 404 new models, all equipped with the devices required by state law to control exhaust fumes and cut down on engine evaporation, the State Motor Vehicle Pollution Control Board found that the new equipment had removed 70% of the obnoxious, smog-causing gases.

This is good news for the Los Angeles area, where up to 90% of the daily total of 14,225 tons of pollutants lofted into the atmosphere have been blamed on car engines. The California law is the model for federal legislation that will go into effect for all '68 models. Chrysler has already improved its carburetor and spark adjustment. Ford will install its "Imco" (for improved combustion), and American Motors now has approval for its new engine designed to cut fume emission. General Motors has developed an air-pump system driven by the fan belt.

Still to be found: an economical way to trap nitrogen oxide, which stains the air and still escapes from autos.