Table 2. Toxicants Employed in Antifouling Concretes 
Identification Toxicant (Concentration)* 
Ul, 
1 none control 
TBTO: creosote, 60:40 (9.0) 
none control 
none control 
TBTO (9.7) 
TBTO: creosote, 60:40 (8.8) 
TBTO (4.3) 
TBTO (4.3)/Cu 
Cu,0 (2.0) 
none control 
99 (2.0) 
methoxychlor (4.3) 
methoxychlor (4.3)/TPTH (4.8)/Cu,0 (C479) 
organotin polymer (unknown) 
No-foul rubber (unknown) 
*Percent by weight of all other constituents. 
18 
