| Figure
4.9. |
Silver (Ag) concentrations in sediments in parts
per million, dry weight (ppm) at 24 stations sampled
in February and August of 1997. * indicates
coarse sediment stations. 
= not detected, b = blank contamination <10% of
measured concentration, B = blank contamination
>10% of measured concentration. Silver concentrations
ranged from 0.05 to 1.3 ppm The highest concentration
was sampled at San Jose (C-3-0) in August. Average
concentrations were highest (1.3 ppm) in the Southern
Sloughs in February. All stations had concentrations
below the ERM value of 410 ppm However, one station
in February and two stations in August had concentrations
above the ERL value of 150 ppm. |
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