Transportation sector: NOx emissions in the United States 1990-2017

Transportation sector nitrogen oxide (NOx) emissions in the United States from 1990 to 2017 (in thousand metric tons)

The data describes nitrogen oxide (NOx) emissions from the United States transportation sector from 1990 to 2017. In 2017, NOx emissions from the United States transportation sector amounted to some 6.4 million tons.

1990 13373
1993 13143
1996 12912
1999 12456
2002 15201
2005 12612
2008 10426
2011 8952
2014 7559
2017 6355