| Figure
4.11. |
Total PAH concentrations in sediment in parts
per billion (ppb), dry weight at 24 stations sampled
in February and August of 1997. * indicates
coarse sediment stations. 
= not analyzed. Total PAH concentrations ranged
between 2.3 and 7,406 ppb. The highest concentration
was sampled at San Pablo Bay (BD22) in February
and the lowest at Sacramento River (BG20) in August.
Average concentrations were highest (2,070 ppb)
in the South Bay and lowest (26.9 ppb) in the Rivers,
both in August. Concentrations were below the ERM
of 44,792 ppb at all stations, however, two stations
in February were above the ERL of 4,022 ppb. |
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