California Air Resources Board 2008 Almanac (web)																															
Appendix A	North Coast									Table A-13 (NOx and ROG)																					
	"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											
Del Norte	5	5	4	4	3	3	2	2	1	1	10	11	7	7	6	6	5	5	5	5											
Humboldt	41	39	32	33	27	26	22	19	17	14	66	41	33	30	24	21	18	17	16	16											
Mendocino	24	23	23	23	18	16	15	13	10	8	32	27	20	19	17	15	13	12	11	11											
Sonoma	3	8	8	9	9	8	7	6	5	4	9	14	13	15	13	11	9	8	8	8											
Trinity	3	3	3	4	3	3	3	3	2	2	7	8	7	7	6	6	5	4	4	4											
Air Basin Total	76	79	70	73	60	55	49	43	35	29	124	101	81	79	66	58	50	47	44	43											
																															
Appendix A	North Coast									Table A-13 (PM10 and CO)																					
	"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											
Del Norte	8	9	9	10	10	10	10	11	11	11	134	130	117	114	104	97	93	91	89	88											
Humboldt	29	29	27	25	23	22	22	22	23	23	363	313	271	251	190	161	137	131	122	115											
Mendocino	19	17	18	20	20	20	21	21	22	23	190	173	158	147	112	90	75	68	61	56											
Sonoma	3	4	4	7	5	5	5	5	6	6	32	94	94	90	70	55	45	39	34	31											
Trinity	16	19	20	19	20	19	18	17	17	17	75	79	76	76	65	60	56	53	51	49											
Air Basin Total	75	78	78	81	78	77	76	77	78	80	795	789	716	677	541	463	406	383	357	339											
																															
Appendix A	North Coast									Table A-13 (PM2.5)																					
	"Directly Emitted PM2.5 Emissions (tons/day, annual average)"																														
County	1975	1980	1985	1990	1995	2000	2005	2010	2015	2020																					
Del Norte	5	6	5	6	6	6	6	6	6	6																					
Humboldt	16	16	14	12	10	9	9	9	9	9																					
Mendocino	9	6	6	6	6	6	6	6	6	6																					
Sonoma	1	2	2	4	2	2	2	2	2	2																					
Trinity	4	5	5	5	5	5	4	4	4	4																					
Air Basin Total	36	34	32	32	28	27	27	27	27	27																					

A portion of Sonoma County lies within the San Francisco Bay Area Air Basin.