2002 Almanac (page 119)  Table 3-6  Emission Trends and Forecasts - Oxides of Nitrogen								

"NOx Emission Trends (tons/day, annual average)"								
Emission Source	1975	1980	1985	1990	1995	2000	2005	2010
All Sources	4762	5050	4939	4901	4133	3523	2962	2462
Stationary Sources	1211	1246	994	889	711	592	571	606
Area-wide Sources	78	88	88	87	89	94	98	97
On-Road Mobile	2300	2422	2684	2727	2312	1846	1408	1012
   Gasoline Vehicles	2074	2020	2007	1836	1602	1179	803	559
   Diesel Vehicles	226	402	678	890	710	667	604	453
Other Mobile	1173	1294	1172	1199	1020	991	886	747