Pacific Southwest, Region 9
Serving: Arizona, California, Hawaii, Nevada, Pacific Islands, Tribal Nations
Dredging and Sediment Management
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SF Deep Ocean Disposal Site (SF-DODS) - Reference Area Database
Tissue Chemistry for the Clam Macoma nasuta Exposed to SF-DODS Reference Area Sediments
PARAMETER | Results from Separate Bioassays | Overall Range | |||||
TRACE METALS (ppm ww) | |||||||
Arsenic | 2.3-4.0 | 2.8-4.0 | 2.4-3.0 | 3.3-3.7 | 3.0-3.9 | 2.2-2.5 | 2.2-4.0 |
Cadmium | nd-0.03 | 0.03-0.05 | 0.01-0.04 | 0.03-0.05 | 0.02-0.04 | 0.01-0.02 | nd-0.05 |
Chromium | 0.2-0.4 | 0.3-0.6 | 0.3-0.4 | 0.2-0.3 | 0.3-0.5 | 0.4-0.5 | 0.2-0.6 |
Copper | 1.2-2.5 | 2.1-8.7 | 1.8-2.9 | 1.4-2.0 | 1.6-2.0 | 2.3-3.1 | 1.2-8.7 |
Lead | 0.1-0.2 | 0.1-0.8 | 0.1-0.2 | 0.1 | 0.1-0.2 | 0.1-0.3 | 0.1-0.8 |
Mercury | 0.01 | 0.01-0.02 | 0.01 | 0.01 | 0.01 | 0.1 | 0.01-0.1 |
Nickel | 0.5-0.8 | 0.6-4.3 | 0.4-0.5 | 0.5-0.7 | 0.6-0.9 | 0.2-1.0 | 0.2-4.3 |
Selenium | 0.2-0.3 | 0.3-0.4 | 0.2 | 0.2-0.4 | 0.2-0.3 | 0.3 | 0.2-0.4 |
Silver | 0.02-0.06 | 0.06-0.26 | 0.05-0.1 | 0.03-0.04 | 0.02-0.12 | 0.1 | 0.02-0.26 |
Zinc | 11.0-14.0 | 13.6-18.2 | 12.6-16.6 | 8.8-13.6 | 9.0-14.0 | 15-18 | 8.8-18.2 |
ORGANICS (ppb ww) | |||||||
Total LPAH (a) | 2-3 | nd | 1-2 | 6-10 | 2-5 | nd | nd-10 |
Total HPAH (b) | 12-17 | nd-26 | 3-8 | 21-25 | 2-7 | nd<40 | nd-26 |
Total PAHs | 12-17 | nd-26 | 4-9 | 27-33 | 4-11 | nd<40 | nd-33 |
Chlorinated Pesticides (ppb ww) | |||||||
Aldrin | nd | nd | 0.7 | nd | nd | nd | nd-0.7 |
Dieldrin | nd | nd | nd | nd | nd | nd | nd |
Chlordane | nd | nd | nd | nd | nd | nd | nd |
DDE/DDD/DDT | nd | nd | 0.9 | 1.4-1.8 | 0.4-0.6 | nd | nd-1.8 |
Endosulfan I | nd | nd | nd | nd | nd | nd | nd |
Endosulfan II | nd | nd | nd | nd | nd | nd | nd |
Endosulfan Sulfate | nd | nd | nd | nd | nd | nd | nd |
Endrin | nd | nd | nd | nd | nd | nd | nd |
Heptachlor | nd | nd | 0.18 | nd | nd | nd | nd-0.18 |
Heptachlor Epoxide | nd | nd | nd | nd | nd | nd | nd |
Alpha- BHC | nd | nd | 0.1-0.4 | nd | 0.2 | nd | nd-0.4 |
Beta-BHC | nd | nd | nd | nd | nd | nd | nd |
Delta-BHC | nd | nd | nd | nd | nd | nd | nd |
Gamma-BHC | 0.13 | nd | nd | nd | nd | N/A | nd-0.13 |
Toxaphene | nd | nd<100 | nd | nd | nd | nd | nd |
Total PCB (ppb ww) (c) | nd<20 | nd<20 | 2.6-4.2 | nd | 2.5-3.5 | nd<20 | nd-4.2 |
Butyltins (ppb ww) (d) | 1.7-3.6 | 3.1-10.2 | 2.2-3.4 | nd-1.6 | 4.0-11.0 | N/A | nd-11.0 |
NOTES:
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