Contaminant Exposure in Juvenile Salmon:

U.S. Dept Commerce/NOAA/NMFS/NWFSC/Publications

NOAA Tech Memo NMFS NWFSC-8: Contaminant Exposure in Juvenile Salmon (cont):

Table 6.
Concentrations of aromatic hydrocarbons (AHs reported as low-molecular weight AHs, LAHs, alkylated LAHs, high-molecular weight AHs, HAHs, and alkylated HAHs) and chlorinated hydrocarbons ( PCBs and other CHs) in composites of stomach contents of juvenile salmon sampled in 1989 and 1990.^a

Year/Site	n	LAHs	Alkylated LAHs	HAHs	Alkylated HAHs	PCBs	Other CHs

1989
Hatcheries	7	31 ± 5.0	31 ± 12	3.4 ± 2.8	0.4 ± 0.4	86 ± 13	29 ± 6.0

Duwamish Waterway	3	5300 ± 4400^c	116000 ± 115000^c	18400 ± 14000^c	3000 ± 1500^c	300 ± 40^c	30 ± 10

Puyallup River estuary^b	3	640 ± 270c^c	2500 ± 400^c	2500 ± 900^c	350 ± 20^c	190 ± 50^c	30 ± 10

Snohomish River estuary	2	37 ± 3.0	15 ± 6.0	48 ± 10^c	nd	59 ± 20	3.0 ± 1.0^e

Nisqually River estuary	3	18 ± 4.0	12 ± 5.0	4.0 ± 2.0	nd	22 ± 10e	2.0 ± 1.0^e

1990
Hatcheries	4	59 ± 11	270 ± 50	22 ± 0.5	20 ± 10	120 ± 20	42 ± 10

Duwamish Waterway	3	15000 ± 14000^c	19000 ± 8000^c	14000 ± 9700^c	3300 ± 1400^c	260 ± 90^d	41 ± 20

Puyallup River estuary^b	2	16000 ± 15000^c	23000 ± 18000^c	30000 ± 27000c	6500 ± 5400c	260 ± 70d	51 ± 30

Nisqually River estuary	2	6.2 ± 1.5^e	12 ± 2.0^e	4.8 ± 1.5^e	2.0 ± 1.0^e	33 ± 8.0^e	11 ± 4.0^e

^a See Table 2 for list of analytes analyzed. Values are expressed as ng/g, wet weight (mean ± SE).

^b In Commencement Bay, the sites sampled in 1989 were the Milwaukee and Blair Waterways and in 1990 the site sampled was the City Waterway.

^c Significantly different than for juvenile salmon from the hatcheries or for juvenile salmon from the Nisqually River estuary.

^d Significantly different than for juvenile salmon from the Nisqually River estuary.

^e Significantly different than for juvenile salmon from the hatcheries.

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