Table A-2. Heavy Metal Concentrations (ppm) in taioms. modiolus from Drunkard's 

 Ledge deployed at Rockland Disposal Site (Northern New England), 



Date location Cd Cr Cu Kg Pb Zn Fe 



8-19-77 



Drunkard's 



X 



16.36 



1.76 



48.95 



0.775 



19.01 



373 



237 







Ledge 



S.D, 



4.56 



0.39 



10.83 



0.143 



3.80 



79 



23 





5-12-78 





X 



12,04 



1.59 



25.14 



0.529 



8.35 



399 



285 









S.D. 



1.94 



0.27 



4.99 



0.078 



3.74 



262 



27 





8-7-78 





X 



22.51 



1.22 



38.40 



0.755 



8.37 



401 



154 







S.D. 



4.67 



0.18 



1.34 



0.177 



1.50 



56 



23 





S-7-7S 



Rockland 



X 



16.50 



1.25 



36.35 



0.237 



12.87 



346 



221 



i 







S.D. 



3.37 



0.31 



7.63 



0.056 



5.63 



116 



41 





