Table 4.

Accumulative concentration of copper, lead, and chromium in gill and muscle tissues observed after 24, 48, 72, and 96 hours of treatment (unit: mg/g).

Heavy metals	24 h		48 h		72 h		96 h
	Gills	Muscles	Gills	Muscles	Gills	Muscles	Gills	Muscles
Copper	0.266 ± 0.029	0.038 ± 0.016	0.048 ± 0.038	0.047 ± 0.054	0.024 ± 0.007	0.021 ± 0.002	0.036 ± 0.019	0.013 ± 0.007
Lead	4.113 ± 0.831	6.697 ± 1.475	1.037 ± 0.418	3.147 ± 1.606	1.647 ± 0.136	3.253 ± 0.992	3.720 ± 3.008	3.730 ± 1.267
Chromium	0.537 ± 0.250	0.593 ± 0.393	0.240 ± 0.130	0.847 ± 0.257	0.667 ± 0.331	0.477 ± 0.162	0.937 ± 0.718	0.307 ± 0.257