195 
’ Figure 6 
Sandy Hook Report, 1970 
160 
140 
= -~— 
o o o n 
° S ° ° 
HEAVY METAL CONCENTRATION - ppm (DRY WY. BASIS) 
> 
o 
20) 
36 Y-2 39 39 70 63 53 
Gaye STATION (center of seviage 
sludge dump 
° 2 4 6 8 10 12 1s 16 iy 
DISTANCE ‘FROM SHORE (MILES) 
TOXIC METALS. IN NEW YORK BIGHT DUMPING AREA 
Analyses of sewage sludge for toxic metals have been conducted by 
G. G. Gross at Stony Brook and by the Sandy Hook Laboratory. Fig- 
ure 6 shows the concentration in parts per million of lead and chro- 
mium in an east-west! transect through the sewage sludge dumping 
area. Table 3 demonstrates some additional analyses for heavy metals 
in the sludge and surrounding sediments. The wide variations indi- 
cated in the table result from inhomogeneities in the sludge material. 
