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redpoint5 · 01-17-2020, 06:24 PM

NOx would really only be hazardous in dense populations. The primary form produced from combustion is NO, and it has a half life of less than 2 hours. NO2 is the second most common form, it it readily breaks down from sunlight. The total average half life of NOx in daylight is 4 hours.

Maybe it's a good idea to not allow too many diesels in Tokyo, but for places like Montana it doesn't matter one bit.

So these urea systems exist in the off chance that you're driving an F-250 through Manhattan.

01-17-2020, 06:24 PM	#85 (permalink)
redpoint5 Human Environmentalist Join Date: Aug 2010 Location: Oregon Posts: 12,674 Acura TSX - '06 Acura TSX 90 day: 24.19 mpg (US) Lafawnda - CBR600 - '01 Honda CBR600 F4i 90 day: 47.32 mpg (US) Big Yeller - Dodge/Cummins - '98 Dodge Ram 2500 base 90 day: 21.82 mpg (US) Chevy ZR-2 - '03 Chevrolet S10 ZR2 90 day: 17.14 mpg (US) Model Y - '24 Tesla Y LR AWD Van - '21 Chrysler Pacifica Hybrid Thanks: 4,304 Thanked 4,458 Times in 3,424 Posts	NOx would really only be hazardous in dense populations. The primary form produced from combustion is NO, and it has a half life of less than 2 hours. NO2 is the second most common form, it it readily breaks down from sunlight. The total average half life of NOx in daylight is 4 hours. Maybe it's a good idea to not allow too many diesels in Tokyo, but for places like Montana it doesn't matter one bit. So these urea systems exist in the off chance that you're driving an F-250 through Manhattan. __________________ Gas and Electric Vehicle Cost of Ownership Calculator Give me absolute safety, or give me death! Last edited by redpoint5; 01-17-2020 at 06:30 PM..