You are here:
BIOACCUMULATION OF 1,2,4-TRICHLOROBENZENE FROM FOOD AND WATER SOURCES BY SPOT (LEIOSTOMUS XANTHURUS)
Citation:
Heitmuller, P. AND J. Clark. BIOACCUMULATION OF 1,2,4-TRICHLOROBENZENE FROM FOOD AND WATER SOURCES BY SPOT (LEIOSTOMUS XANTHURUS). U.S. Environmental Protection Agency, Washington, D.C., EPA/600/D-89/256.
Description:
Contaminated food was prepared by exposing pink shrimp (Penaeus duorarum) to 10 ug/l 1,2,4-trichlorobenzene -UL-14C (TCB) for 12 days; whole body concentration of TCB in the exposed shrimp was 0.59 ug/g. uvenile spot (Leiostomus xanthurus) were fed the TCB-contaminated shrimp at a daily ration of 10% body weight for 28 days; they accumulated < 0.05 ug/g TCB (detection limits). pot were exposed to 10 ug/l TCB in water for 28 days and fed uncontaminated food bioconcentrated TCB approximately 100 times the aqueous exposure concentration. quilibrium was attained in these fish within 7 days and depurated TCB to concentrations <0.1 ug/g in 24 h when placed in TCB-free water. pot, exposed simultaneously to contaminated food and water described above, bioaccumulated TCB equal to the aqueous exposure treatment. esults were compared with data from a TCB bioaccumulation with freshwater species; both studies indicated that TCB was accumulated moderately from contaminated water and accumulation from contaminated food was negligible.