List of Tables 



1 . Regions of the Hudson-Raritan Estuary in which the concentrations of selected 

 toxicants in sediments exceeded respective effects ranges of Long and Morgan 



(1990). Adapted from Squibb et al. (1991) 6 



2. Spearman-rank correlations (Rho) between percent survival of A. abdita (n=9) and the 

 concentrations of trace metals normalized to dry wt., aluminum and total organic carbon 



(TOC). From U.S. EPA EMAP monitoring data, 1990 (Schimmel et al., 1994) 11 



3. Mean percent mortality of Eohaustorius estuaries in sediments from Arthur Kill, 



Kill van Kull, and Newark Bay (from Aqua Survey, Inc., 1990a, 1990b) 12 



4. Locations of sites in the Hudson-Raritan Estuary sampled during Phase 1 15 



5. Locations of stations in Newark Bay and vicinity sampled during Phase 2 18 



6. Mean percent survival of A. abdita in 10-day solid-phase toxicity tests of sediments from 

 the Central Long Island Sound (CLIS) control site (n = 5), 117 sampling stations (n = 5) 



and 39 sites (n = 3) and of Diporeia spp. in 9 samples from the Hudson-Raritan Estuary 31 



7. Mean percent amphipod (A. abdita) survival in the 1993 Newark Bay survey performed 



during Phase 2 36 



8. Mean percent survival and normal morphological development (expressed as percent of 



controls) in 48-hour tests of elutriates with the larvae of Mulinia lateralis 41 



9. Results of Microtox™ tests of microbial bioluminescence in organic extracts of 

 sediments; mean EC50's (n = 2) and 95% confidence intervals for stations, and mean 



EC50's (n = 3) for sites 50 



10. Results of microbial bioluminescence (Microtox™) tests of sediments from the 

 Hudson-Raritan estuary performed with three kinds of sediment extracts (from 



DeMuth et al., 1993) 57 



11 . Results of polychaete (Armandia brevis) impaired growth tests, and sand dollar 

 (Dendraster excentricus) impaired growth tests of sediment from the Hudson-Raritan 



estuary (from Rice et al., in press) 58 



12. Estimates of the spatial extent of toxicity* (km 2 and percent of total area) in the 

 Hudson-Raritan Estuary based upon the cumulative distribution functions of 



data from each of four test end-points 59 



13. Estimates of concordance in the spatial extent of toxicity* (km 2 and percent of total area) 



in the Hudson-Raritan estuary among the four toxicity test end-points 59 



14. Estimates of the spatial extent of toxicity* (km 2 and percent of total area) in Newark Bay 

 and vicinity, based upon the cumulative distribution function of data from amphipod 



survival tests 60 



1 5. Concentrations of TCDD-equivalents (pg/g) in whole extracts and extract fractions 



determined in H4IIE rat hepatoma bioassays of sediments from Newark Bay 75 



16. Spearman-rank (rho, corrected for ties) correlations between dioxin equivalents 

 determined in chemical analyses and dioxin equivalents (tcdd-eqs) determined in 



rat hepatoma bioassays of sediment extracts 76 



