Table 1.

Measured concentrations (ng L⁻¹) of polar organic contaminants in grab water and composite effluent samples from the San Francisco Bay. Water sample measurements are given for both deployment and retrieval dates at each sample site. Missing values represent non-detects at the reporting limit (0.6 – 1.2 ng L⁻¹). Values shown are the means of three laboratory replicates for each site sample (n=3) for Napa River, Effluent C, and San Leandro Bay samples, and the means of two field replicates (n=2) for Coyote Creek samples. Concentrations given without a standard deviation represent a single sample & measurement for each site (n=1).

	Coyote Creek		Napa River		San Leandro Bay		Wastewater
	Deploy	Retrieval	Deploy	Retrieval	Deploy	Retrieval	Effluent A	Effluent B	Effluent C	Effluent D
Pesticides
Atrazine				2.2 ± 0.1	0.23 ± 0.1					0.98
Atrazine-desisopropyl				1.9 ± 0.3						0.34
Azoxystrobin	0.5 ± 0.0	0.8 ± 0.1	3.5	4.3 ± 0.1	1.2 ± 0.2	1.2 ± 0.1	2.2	1.0	2.4 ± 0.1	6.9
Benomyl		1.6 ± 0.0			0.90 ± 0.8		56	7.3	13 ± 0.1	20
Carbendazim	15 ± 0.6	21 ± 7	1.6	1.4 ± 0.7	8.4 ± 0.7	3.8 ± 1	82	103	77 ± 3	152
DEET	4.9 ± 0.2	13 ± 1		3.4 ± 0.0	8.1 ± 0.6	11 ± 1.	165	40	43 ± 0.4	11
Fluoxastrobin		0.18 ± 0.05			0.33 ± 0.2
Fluridone	3.4 ± 0.04	3.8 ± 0.1	2.3	2.0 ± 0.1	0.71 ± 0.03	0.83 ± 0.04	1.8		4.5 ± 0.08	9.1
Flutolanil					0.2	0.14 ± 0.04
Halosulfuron-methyl					0.88
Imazapyr	0.66 ± 0.2	1.4 ± 0.1			1.2 ± 2			1.1	1.9 ± 0.2	1.3
Metalaxyl					0.58 ± 0.5				0.15 ± 0.1	0.61
Metsulfuron-methyl					1.6
Oxadiazon	0.20 ± 0.02	0.56 ± 0.4			5.8 ± 0.6	15 ± 0.7	1.2	2.4	0.31 ± 0.4	9.5
Prometon				0.18 ± 0.03	1.9 ± 0.2	1.4 ± 0.01		0.12		5.8
Pronamide		0.15
Propiconazole	0.64 ± 0.3	1.5 ± 1		0.69	11 ± 3	26 ± 1	3.0	1.9	2.6 ± 0.7	17
Quinclorac	0.51 ± 0.2				1.5 ± 1					0.71
Simazine	0.82 ± 0.1	0.79 ± 0.1	11	9.8 ± 0.7	1.9 ± 0.2	1.8 ± 0.08		1.9	0.089	2.6
Sulfapyridine	2.3 ± 0.2	6.2 ± 2	0.068		0.38		58	30	104 ± 3	107
Tertbutylazin-desethyl	0.82 ± 0.1	0.79 ± 0.1	11	9.8 ± 0.7	1.9 ± 0.2	1.8 ± 0.08		1.9	0.089	2.6
Thiencarbazone-methyl					0.63
Pharmaceuticals
Carbamazepine		35 ± 0.6		1.5 ± 0.02	2.6 ± 0.5	2.2 ± 0.07				121
cis-Diltiazem	0.75 ± 0.02	3.5 ± 0.6	0.37		0.48 ± 0.3	0.15 ± 0.01	31	42	75 ± 2	70
Citalopram	0.65 ± 0.06	1.3 ± 0.1	0.115	0.079 ± 0.0	0.29 ± 0.31		8.5	75	75 ± 3	39
Dextromethorphan	1.3 ± 0.1	3.7 ± 0.2			0.47 ± 0.3		6.5	34	32 ± 5	38
Diphenhydramine	0.46 ± 0.1	0.91 ± 0.2					78	29	44 ± 3	68
Genistein				0.43	27 ± 1	0.53 ± 0.2			1.1 ± 0.2
Iminostilbene	19 ± 0.4	34 ± 0.3	1.6	1.5 ± 0.3	2.3 ± 0.2	2.1 ± 0.4	95	125	103 ± 3	126
Irbesartan	3.4 ± 0.05	8.8 ± 0.1	0.56	0.43 ± 0.04			42	55	101 ± 6	104
Pramoxine					0.064 ± 0.1
Propanolol	0.78 ± 0.1	2.1 ± 0.1	0.14		0.20		4.9	29	21 ± 0.2	29
Rosuvastatin					0.88		56		3.4 ± 0.07	9.1
Sulfamethoxazole	27 ± 0.02	63 ± 0.9	0.97	0.97 ± 0.2	3.5 ± 0.6	1.8 ± 0.2	128	150	208 ± 48	156
Trimethoprim		1.6 ± 0.01			0.90 ± 0.8		56	7.3	13 ± 0.08	20
Verapamil	0.57 ± 0.01	0.66 ± 0.06	0.47	0.49 ± 0.01	0.96 ± 0.7	0.58 ± 0.04	5.5	43	30 ± 0.5	27
Corrosion Inhibitors
Benzotriazole	346 ± 40	792 ± 9	4.3	17 ± 2	38 ± 2	31 ± 4	1252	701	606 ± 10	1443