TAC	Butte	Colusa	Glenn	Placer (part)	Sacramento	Shasta	Solano (part)	Sutter	Tehama	Yolo	Yuba
Acetaldehyde	128	19	29	95	301	172	39	42	56	60	53
Benzene	380	97	121	269	925	393	201	152	90	216	153
"1,3-Butadiene"	69	21	21	50	153	82	26	25	17	27	33
Carbon tetrachloride	0	0	0	0	0.06	0	<.01	0	<.01	0	0
Chromium (Hexavalent)	0.0241	0.0026	0.011	0.0073	0.0317	0.009	0.0024	0.0278	0.0018	0.0051	0.006
para-Dichlorobenzene	9	1	1	9	55	8	5	4	3	7	3
Formaldehyde	345	73	106	230	797	385	111	98	111	141	150
Methylene Chloride	32	2	3	61	170	20	15	9	6	24	7
Perchloroethylene	20	11	15	103	258	101	59	45	11	90	35
Diesel PM	232	75	90	166	793	227	108	151	113	216	78