2010 Progress Report - International Joint Commission
2010 Progress Report - International Joint Commission
2010 Progress Report - International Joint Commission
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Figure 18. U.S. NO x<br />
Emission Trends in PEMA States, 1990–2008<br />
Thousand Tons<br />
4,000<br />
3,500<br />
3,000<br />
2,500<br />
2,000<br />
1,500<br />
3,500<br />
3,000<br />
2,500<br />
2,000<br />
1,500<br />
Thousand Tonnes<br />
Commitments<br />
1,000<br />
1,000<br />
500<br />
500<br />
0<br />
1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2002 2003 2004 2005 2006 2007<br />
2008<br />
0<br />
( indicates data are not available)<br />
Industrial sources<br />
On-road transportation<br />
Other anthropogenic sources<br />
Non-industrial fuel combustion<br />
Non-road transportation<br />
Electric power generation<br />
Note: The scales in Figures 18–19 and 20–21 are significantly different.<br />
Source: US EPA <strong>2010</strong><br />
Figure 19. U.S. VOC Emission Trends in PEMA States, 1990–2008<br />
Thousand Tons<br />
4,000<br />
3,500<br />
3,000<br />
2,500<br />
2,000<br />
1,500<br />
1,000<br />
500<br />
3,500<br />
3,000<br />
2,500<br />
2,000<br />
1,500<br />
1,000<br />
500<br />
Thousand Tonnes<br />
0<br />
1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2002 2003 2004 2005 2006 2007<br />
2008<br />
0<br />
( indicates data are not available)<br />
Industrial sources<br />
On-road transportation<br />
Other anthropogenic sources<br />
Non-industrial fuel combustion<br />
Non-road transportation<br />
Solvent utilization<br />
Note: The scales in Figures 18–19 and 20–21 are significantly different.<br />
Source: US EPA <strong>2010</strong><br />
31