Table 9. Estimated Amounts of Oxidizable Carbon and Potentially Troublesome Elements 

 Discharged with Solids in Offshore Dumps, New York Metropolitan Region. 



Annual Discharge* 



Type of Waste Solid 



Solids 



Oxidizable Carbon 



Minor Elements 





Dredged Wastes t 

 Sewage Sludge J 

 Fly Ash 



35X10'^ 



2X10'* 



lO'i 



6X10'° 

 4X10'° 

 3X10^ 



5X10' 



2X10^ 



<10^ 



1.4X10' 

 2X10* 

 2X10' 



7X10* 



2X10* 



10' 



2X10* 



6X10' 



<2X10^ 



2X10^ 



10* 

 3X10' 



* Discharges expressed in grams per year (10 grams equals one metric ton). 

 T Oxidizable carbon discharges calculated from observed carbon concentrations 



in harbor sediment, corrected for carbon losses during dredging operations. 

 If Oxidizable carbon 20 percent by weight. 



after Gross, 1970 



61 



