Estimated dose values and hazard indices of ROCP exposures in fish at different trophic levels (O. niloticus, Ciprinuscarpio and Carassius carassius) sampled in Lake Ziway, Ethiopia.

Table 2: Estimated dose values and hazard indices of ROCP exposures in fish at different trophic levels (O. niloticus, Ciprinuscarpio and Carassius carassius) sampled in Lake Ziway, Ethiopia.

DDT mg/kg	Fish species	RfD (µg kg^-1 day-1) [9]	Estimated dose (µg kg^-1 day-1)			Hazard index
DDT mg/kg	Fish species	RfD (µg kg^-1 day-1) [9]	0-1 years	1-11 years	Adult	0-1 years	1-11 years	Adult
0.030	Oreochramis nilaoticus	0.5	0.081	0.027	0.011571	0.162	0.054	0.023
0.036	Ciprinus carpio	0.5	0.0972	0.0324	0.013886	0.1944	0.0648	0.0278
0.027	Carassius carassius	0.5	0.0729	0.0243	0.010414	0.1458	0.0486	0.0208

N.B body weight of 10 kg for children in age-class 0-1 years, 30 kg for children in age-class 1-11 years, and 70 kg for adults Numbers in bold indicate hazard indices greater than one.