California Air Resources Board 2009 Almanac (web)																															
Appendix A	Northeast Plateau									Table A-15 																					
	"NOx Emissions (tons/day, annual average)"										"ROG Emissions (tons/day, annual average)"																				
County	1975	1980	1985	1990	1995	2000	2005	2010	2015	2020	1975	1980	1985	1990	1995	2000	2005	2010	2015	2020											
Lassen	10	10	9	9	9	8	7	6	5	5	10	11	11	11	9	8	7	7	7	6											
Modoc	7	7	6	6	5	5	4	4	3	3	6	6	6	5	5	4	4	4	4	4											
Siskiyou	21	22	21	24	22	20	20	16	13	10	28	28	26	26	23	21	20	19	18	17											
Air Basin Total	38	39	36	38	36	33	31	26	21	17	44	45	42	42	37	33	31	30	28	27											
																															
	"Directly Emitted PM10 Emissions (tons/day, annual average)"										"CO Emissions (tons/day, annual average)"																				
County	1975	1980	1985	1990	1995	2000	2005	2010	2015	2020	1975	1980	1985	1990	1995	2000	2005	2010	2015	2020											
Lassen	19	19	20	21	20	23	22	22	22	23	61	72	70	66	60	52	39	35	32	31											
Modoc	18	18	19	19	18	18	18	17	17	17	31	32	29	27	22	18	16	14	13	12											
Siskiyou	33	35	34	34	34	33	33	33	33	34	369	353	332	329	299	271	259	253	246	242											
Air Basin Total	69	72	73	74	72	74	73	72	73	74	461	457	431	423	381	341	314	302	292	284											
																															
	"Directly Emitted PM2.5 Emissions (tons/day, annual average)"																														
County	1975	1980	1985	1990	1995	2000	2005	2010	2015	2020																					
Lassen	6	5	5	6	5	5	5	5	5	5																					
Modoc	4	4	4	4	3	3	3	3	3	3																					
Siskiyou	19	20	18	19	18	18	18	17	17	17																					
Air Basin Total	28	28	27	28	26	26	25	25	25	25