List of Figures 



1 . The Hudson-Raritan Estuary study area 3 



2. Sampling sites in which sediments were significantly toxic to: (1 ) nematode growth; 



(2) amphipod survival in static tests; (3) A. abdita in flow-through tests; and (4) A. abdita in 



static tests 10 



3. Sampling stations in which survival was significantly different from referer materials in 



tests of either grass shrimp, polychaetes, or clams during pre-dredging studies 14 



4. Boundaries of sampling zones and locations of sampling sites within each zone 17 



5. Stations sampled in the Passaic River, HackensackRiver, Newark Bay, upper Arthur Kill, 



Kill van Kull, and upper New York Harbor during Phase 2 24 



6. Sampling stations in which the sediments were significantly toxic to Ampelisca abdita survival 29 



7. Sampling sites in which the sediments were significantly toxic to Ampelisca abdita survival 30 



8. Distribution of stations in Newark Bay and vicinity that were toxic, highly toxic, and 



non-toxic in amphipod (A. abdita) survival tests 39 



9. Sampling stations in which the sediment elutriates were significantly toxic to 



Mulinia laterlis larvae survival 46 



10. Sampling sites in which the sediment elutriates were significantly toxic to 



Mulinia lateralis larvae survival 47 



11. Sampling stations in which the sediment elutriates were significantly toxic to 



Mulinia lateralis larvae normal development 48 



12. Sampling sites in which the sediment elutriates were significantly toxic to 



Mulinia lateralis larvae normal development 49 



13. Sampling stations in which the sediment extracts were significantly toxic to 



microbial bioluminescence 55 



14. Sampling sites in which the sediment extracts were significantly toxic to microbial 

 bioluminescence 56 



15. Percent fine-grained sediments at selected stations in the Hudson-Raritan Estuary 61 



16. Percent total organic carbon in selected stations in the Hudson-Raritan Estuary 63 



17. Mercury concentrations in selected stations in the Hudson-Raritan Estuary 64 



18. Ratios of total simultaneously-extracted metals concentrations to acid-volatile 



sulfide concentrations in selected stations in the Hudson-Raritan Estuary 65 



19. Total PCB concentrations in selected stations in the Hudson-Raritan Estuary 66 



20. Concentrations of total PAHs at selected stations in the Hudson-Raritan Estuary 67 



21. Concentrations of cadmium at selected stations in Newark Bay and vicinity 69 



iii 



