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Table 5 Mean Heavy metals concentration (mean ± SD) in sediments from settlements within the Birim River basin

From: Hydrochemical characteristics of surface water and ecological risk assessment of sediments from settlements within the Birim River basin in Ghana

Settlements Fe Pb Cd Zn As
Apapam 549.842 ± 0.003 7.348 ± 0.001 1.532 ± 0.001 5.422 ± 0.002 0.801 ± 0.001
Adukrom 573.950 ± 0.014 6.000 ± 0.004 2.032 ± 0.001 6.371 ± 0.001 0.951 ± 0.001
Kibi 564.975 ± 0.021 6.857 ± 0.014 1.582 ± 0.001 7.471 ± 0.001 0.851 ± 0.001
Bunso 582.691 ± 0.001 7.052 ± 0.007 1.982 ± 0.001 9.671 ± 0.001 1.400 ± 0.000
Nsutam 563.142 ± 0.002 8.947 ± 0.000 1.881 ± 0.000 4.721 ± 0.001 0.550 ± 0.000
Nsuapemso 578.995 ± 0.007 5.399 ± 0.002 1.782 ± 0.001 11.121 ± 0.001 1.251 ± 0.001
Osino 548.945 ± 0.007 5.998 ± 0.001 1.782 ± 0.001 5.171 ± 0.001 0.553 ± 0.004
Ankaase 578.843 ± 0.004 7.047 ± 0.071 1.631 ± 0.000 12.021 ± 0.001 1.101 ± 0.001
Mampong 574.741 ± 0.001 6.348 ± 0.001 1.782 ± 0.001 9.870 ± 0.000 0.750 ± 0.000
Anyinam 572.641 ± 0.001 7.647 ± 0.000 1.232 ± 0.001 9.572 ± 0.002 0.951 ± 0.001
Mean ± SD 568.880 ± 11.900 6.860 ± 1.010 1.720 ± 0.240 8.140 ± 2.640 0.920 ± 0.280
ERL 46.7 1.2 150 8.2
ERM 218 9.6 410 70
ISQC 30.2 0.68 124 7.24
PEL 112 4.21 271 41.6
  1. All results are in mg/kg
  2. ERL effect range low (NOAA), ERM effect range medium (NOAA), ISQC Interim sediment quality guidelines (Environment Canada), PEL probable effect level (Environment Canada)