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Engineering · Civil Engineering
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4. Emissions: Reports from the 2015 VW diesel passenger vehicle scandal indicate that the vehicles emitted up to 35 times more NO than the relevant US standard of 0.07 g mi 0.043 g km1 in CA. There have been 489,000 diesel passenger cars sold in the US since 2009. There are approximately 250 million cars on the road in the US. If you assume that all of these diesel passenger vehicles emitted exactly 35 times as much NOx as the US standard and that all other vehicles emitted at the standard limit, what would be the actual fleet average (aka weighted average) emission factor in g mi? You can assume that the diesel vehicles are a subset of the entire fleet. (6 pts)

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