Word: nitrogen
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...automobile is a contributor of three-these include carbon monoxide, hydrocarbons, and oxides of nitrogen. So, to the degree that any one or all three of these are air pollution problems in a local area, or any urban area, like Boston here, then the automobile is to that degree a significant source of air pollution in that total area...
...cent of the losses from an uncontrolled car come from the crankcase. And another 60 per cent of those hydro-carbon losses come from the exhaust itself. Now practically all of the carbon-monoxide come from the tail-pipe of the car. And practically all of the oxides of nitrogen-the third pollutant-come from the tailpipe...
...will decrease hydro-carbons by about 50 per cent, it will decrease oxides of nitrogen about 30 per cent on average and carbon monoxide some 35 per cent. This in itself will again hasten the decline of pollution in the atmosphere...
This system gives hydro-carbon levels that would meet 1975 kinds of problems. It would give carbon monoxide levels meeting the 1975 requirements. It won't do the job on oxides of nitrogen...
...next slide shows one of the combinations you can put together-one of several that we have running. This one includes electronic fuel injection along with so-called recirculation... to control oxides of nitrogen...