LIST OF FIGURES 



PAGE 



10-1. The concentration of silver in the Quinnipiac River 



system ■10_4 



10-2. The concentration of silver, lead and copper in sedi- 

 ments of the Quinnipiac River system and in New 

 Haven Harbor 10-5 



10-3. The distribution of mercury (in ppm) in the tops 



of sediments from New Haven Harbor 10-7 



10-4. The relation of zinc concentration to organic content 

 in sediments from the New Haven Harbor channel and 

 potential dredge disposal site in Long Island Sound . . 10-8 



10-5. Distribution of copper in the tops of cores raised from 



Long Island Sound 10-10 



10-6. Distribution of zinc in the tops of cores raised 



from Long Island Sound 10-11 



10-7. Distribution of lead in the tops of cores raised 



from Long Island Sound 10-12 



10-8. Sediment size distribution in Long Island Sound .... 10-13 



10-9. The depth of distribution of Hg, Pb, Cu and Zn in cores 10-14 



10-10. Correspondence of age of layers in the Farm River 

 salt marsh, determined by Pb-210 and sea level rise 

 curve from tide gauge data 10-16 



10-11. Flux of metals as a function of time in the Farm River 



salt marsh 10-18 



210 

 10-12. Total Pb in surface water versus concentration of 



suspended solids taken over time at a station in 



central Long Island Sound 10-21 



10-13. Copper concentration in oysters as a function of time 



at six locations along the Connecticut coast 10-21 



10-14. Cadmium concentration in oysters as a function of time 



at six locations along the Connecticut coast 10-27 



10-15. Zinc concentration in oysters as a function of time 



at six locations along the Connecticut coast 10-27 



ii 



