Word: hydros
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...next slide (slide =4) shows one made for hydro-carbon. What this says is that back in 1940 for the total country, we have something under 20,000 tons a day for the total passenger car population...
...every one of those passenger cars on the dotted line we've had 567 grams a day of hydro-carbon. So simple multiplication shows continual increase into the atmosphere of hydro-carbon...
...begin to deviate from that ever increasing line along about the early 1960's, reach a maximum in the mdi-1960's and as of today the total hydro-carbon emissions are on the decline and they're going to continue to become less and less as time goes along and will reach a minimum around...
About that time the passenger car will begin to catch up with the level of control and the line of hydro-carbon emission will gradually begin to rise again...
...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...