Table 7.

HI for muscle and skin consumption of O. niloticus (O. n.) and M. cephalus (M. c.) calculated at mean ingestion and subsistence ingestion rates

		Site 1 (Reference site)		Site 2 (Lake Qaroun)		Site 3 (Qaroun fish farms)
		HIm	HIs	HIm	HIs	HIm	HIs
Copper	O. n. a	0.002	0.014	0.043	0.036	0.029	0.021
	O. n. b	0.009	0.063	0.193	0.157	0.136	0.100
	M. c. a	0.001	0.012	0.021	0.029	0.021	0.029
	M. c. b	0.004	0.054	0.107	0.136	0.086	0.129
Zinc	O. n. a	0.026	0.024	0.084	0.173	0.084	0.210
	O. n. b	0.119	0.108	0.379	0.799	0.383	0.953
	M. c. a	0.019	0.018	0.061	0.182	0.047	0.210
	M. c. b	0.085	0.082	0.276	0.822	0.210	0.967
Lead	O. n. a	0.028	0.167	0.560	1.961c	0.280	1.961c
	O. n. b	0.112	0.756	2.241c	8.403c	1.401c	9.244c
	M. c. a	0.028	0.056	0.280	1.120c	0.280	1.401c
	M. c. b	0.140	0.280	1.401c	5.042c	1.121c	5.882c
Iron	O. n. a	0.001	0.005	0.008	0.093	0.011	0.084
	O. n. b	0.004	0.022	0.039	0.428	0.048	0.383
	M. c. a	0.001	0.003	0.005	0.084	0.008	0.070
	M. c. b	0.004	0.011	0.020	0.381	0.034	0.319
Manganese	O. n. a	0.003	0.003	0.006	0.032	0.006	0.025
	O. n. b	0.011	0.013	0.025	0.134	0.032	0.121
	M. c. a	0.002	0.003	0.006	0.032	0.006	0.038
	M. c. b	0.009	0.014	0.013	0.146	0.025	0.166

HI _m HI for muscle, HI _s HI for skin

^a0.0312 kg/day (mean ingestion rate)

^b0.1424 kg/day (subsistence ingestion rate)

^cHI > 1, which is the point at which adverse health effects are expected to occur