Long Island Sound. Second, toxicity was relatively high in samples from the lower East River, and 

 decreased southward through upper New York Harbor, lower New York Harbor, and eastward into the 

 entrance of the estuary. Third, toxicity was extremely high in the Newark Bay/Kill van Kull/Arthur 

 Kill area and diminished southeastward through Raritan Bay. Sediments from the lower Raritan River 

 and Sandy Hook Bay were moderately toxic, and this toxicity diminished into central Raritan Bay and 

 eastward into the entrance to the estuary. 



Table 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 



