Table 2. The concentration of different heavy metals (mg/kg fresh weight) in broiler chicken from other regions of Dhaka North City Corporation (mean ± SD range).

Sample types	Uttara	Gabtoli	Badda	Karwan Bazar	Mohammadpur	Rayer	Min~	Overall mean
						Bazar	Max
Lead (Pb)
Muscle	0.445±0.02	0.734±0.1	0.881±0.09	0.679±0.1	0.656±0.2	0.547±0.1	0.428‒0.963	0.657±0.2
Liver	0.391±0.1	0.552±0.1	0.772±0.2	0.486±0.3	BDL	0.762±0.7	0.0‒1.178	0.494±0.4
Gizzard	0.555±0.1	0.737±0.1	0.881±0.3	0.655±0.2	0.645±0.1	1.012±0.2	0.472‒1.230	0.747±0.2
Heart	0.506±0.3	0.328±0.2	1.007±0.4	0.689±0.2	0.537±0.0	1.104±0.3	0.126‒1.407	0.695±0.4
Kidney	1.253±0.3	0.650±0.2	0.906±0.5	1.607±1.3	0.726±0.1	0.844±0.1	0.492‒3.134	0.998±0.6
Brain	3.903±0.3	3.510±0.7	4.943±0.99	3.964±1.1	2.019±0.5	2.382±0.9	1.487‒13.851	3.454±1.2
Cadmium (Cd)
Muscle	0.035±0.0	BDL	BDL	0.034±0.0	0.023±0.0	0.037±0.0	0.004‒0.078	0.021±0.02
Liver	0.058±0.1	0.069±0.0	0.078±0.0	0.102±0.0	0.107±0.0	0.075±0.0	0.038‒0.134	0.082±0.02
Gizzard	BDL	BDL	0.007±0.0	0.049±0.0	0.047±0.0	0.084±0.0	0.007‒0.116	0.055±0.04
Heart	BDL	BDL	BDL	0.009±0.0	0.002±0.0	BDL	0.002‒0.009	0.004±0.002
Kidney	0.016±0.0	0.004±0.0	0.032±0.0	0.006±0.0	0.012±0.0	0.017±0.0	0.002‒0.045	0.015±0.01
Brain	BDL	0.037±0.0	0.041±0.0	BDL	BDL	BDL	0.037‒0.044	0.04±0.004
Chromium (Cr)
Muscle	BDL	BDL	BDL	0.281±0.02	0.826±0.0	BDL	0.253‒0.826	0.236±0.3
Liver	0.550±0.0	0.920±0.0	BDL	0.473±0.0	BDL	BDL	0.473‒0.920	0.648±0.3
Gizzard	0.223±0.0	BDL	BDL	BDL	BDL	BDL	0.223‒0.223	0.223±0.05
Heart	BDL	BDL	BDL	0.286±0.0	0.006±0.0	0.364±0.0	0.006‒0.364	0.219±0.2
Kidney	BDL	0.147±0.0	BDL	0.053±0.0	BDL	BDL	0.053‒0.147	0.1±0.06
Brain	0.569±0.0	0.944±0.4	1.006±0.3	0.777±0.0	BDL	0.569±0.0	0.569‒1.412	0.899±0.3
Iron (Fe)
Muscle	4.682±1.2	5.154±5.0	2.701±3.8	5.576±2.6	10.277±1.6	7.058±1.2	1.111‒11.934	6.256±3.4
Liver	76.879±23.8	56.254±16.4	52.936±14.6	39.967±6.4	92.319±48.8	77.172±12.2	32.54‒142.825	65.921±27.5
Gizzard	20.524±5.5	19.152±5.6	17.281±4.8	22.663±3.3	18.262±8.3	37.107±18.6	10.304‒58.599	22.498±10.4
Heart	33.449±12.1	14.727±7.4	28.818±5.7	28.502±0.9	26.364±1.1	29.887±0.8	7.645‒46.333	26.958±8.0
Kidney	43.947±13.2	53.432±28.4	32.727±6.9	45.029±15.4	44.656±8.2	42.518±5.6	24.747‒82.962	43.718±14.1
Brain	79.619±57.0	25.490±5.5	26.996±1.6	27.601±8.5	41.239±37.9	25.526±12.8	17.671‒135.876	37.745±31.4
Copper (Cu)
Muscle	0.141±0.03	0.158±0.0	0.068±0.01	0.174±0.1	0.325±0.1	0.228±0.0	0.018‒0.411	0.191±0.1
Liver	2.380±0.4	2.278±0.3	2.980±1.3	2.373±0.6	1.926±0.3	2.368±0.3	1.59‒4.448	2.384±0.6
Gizzard	0.557±0.2	0.501±0.1	0.429±0.1	0.470±0.2	0.315±0.2	0.543±0.2	0.152‒0.752	0.469±0.2
Heart	2.785±0.5	1.281±0.4	2.409±0.7	2.696±0.3	2.631±0.2	2.871±0.4	0.832‒7.264	2.445±0.7
Kidney	2.303±0.6	1.421±0.6	1.903±0.2	2.440±0.4	1.931±0.5	2.134±0.1	0.859‒2.978	2.007±0.5
Brain	3.454±2.7	2.930±0.3	3.112±0.7	2.793±0.9	2.387±0.5	2.579±0.6	1.564‒6.592	2.876±1.1
Zinc (Zn)
Muscle	4.452±0.6	4.530±0.6	5.576±0.8	7.953±6.8	6.078±0.9	6.311±1.2	4.452‒7.953	5.817±2.7
Liver	16.045±2.6	18.301±1.5	23.545±11.1	16.986±0.6	17.453±3.5	23.755±4.3	16.045‒23.755	19.347±5.4
Gizzard	16.599±2.9	18.010±0.7	16.200±2.8	16.455±2.1	11.786±5.3	20.217±1.6	11.786‒20.217	16.545±3.6
Heart	16.625±1.2	7.737±2.6	16.601±3.3	16.279±0.6	15.508±0.2	17.155±2.2	0.958‒19.610	14.984±3.8
Kidney	16.131±5.3	10.245±4.2	14.063±2.6	16.432±2.5	15.524±2.9	15.095±0.6	6.277‒21.963	14.582±3.6
Brain	19.491±11.6	13.107±1.3	15.054±1.7	13.117±0.6	12.466±1.9	10.492±0.95	9.869‒32.814	13.954±5.0

BDL means below the detection limit