On-Road Remote Sensing of Motor Vehicle Emissions: Associations between Exhaust Pollutant Levels and Vehicle Parameters for Arizona, California, Colorado, Illinois, Texas, and Utah

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Year January February March April May June July August September October November December Total
2014 5 7 2 7 1 5 16 5 0 48
2013 3 2 4 5 10 6 3 5 6 4 5 5 58
2012 2 1 3 1 1 0 1 6 7 3 7 0 32
2011 0 0 0 2 4 2 2 1 1 3 5 0 20
2010 1 1 2 2 0 1 2 4 1 5 0 0 19

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