|
Reference | Region/ community | Source of pollutants studied | As | Hg | Fe | Mn | Cd | Zn | Cr | Cu | Ni | Pb |
|
| Western region | | | | | | | | | | | |
Donkor et al. 2006 [33] | Lower Pra river basin | River sediments | | 25.89 (6.52–57.32) mgkg−1 | | | | | | | | |
| Soil | | 75.61 (3.40–202.32) mgkg−1 | | | | | | | | |
|
Serfor-Armah et al. 2006 [28] | Prestea and its environ | Sediments | 2261.8 (942–10,200) mgkg−1 | | | | | | | | | |
Essumang et al. 2007 [16] | Food crops from Efuantah, Nsuta and Tamso in Tarkwa district | Cocoyam Water cocoyam | 146 mgkg−1 383.5 mgkg−1 | 3 mgkg−1 3.5 mgkg−1 | | | 43 mgkg−1 181.5 mgkg−1 | | | | | |
|
Hayford et al. 2009 [30] | Tarkwa and its environs | Soil | 0.7 mgkg−1 | 0.25 mgkg−1 | | | | 38.42 mgkg−1 | 0.72 mgkg−1 | 66.39 mgkg−1 | | |
Cassava | 0.43 mgkg−1 | 0.41 mgkg−1 | | | | 26.62 mgkg−1 | 0.44 mgkg−1 | 33.61 mgkg−1 | | |
Plantain | 0.34 mgkg−1 | 0.36 mgkg−1 | | | | 18.87 mgkg−1 | 2.2 mgkg−1 | 5.44 mgkg−1 | | |
|
Boamponsem et al. 2010 [29] | Sediments in 5 streams in Tarkwa gold mining district | Sediments | | | | | | | | | | |
Angonabeng | | 5.41 mgkg−1 | 0.212 mgkg−1 | | 36468 mgkg−1 | 0.658 mgkg−1 | | | 13 mgkg−1 | | |
Bediabewa |
“ | 13.4 mgkg−1 | 0.054 mgkg−1 | | 365 mgkg−1 | 0.312 mgkg−1 | | | 20.1 mgkg−1 | | |
Mile 7 spring | | 1.65 (1.15–2.22) mgkg−1 | | | 55.9 (42.1–69.7) mgkg−1 | | | | 2.92 mgkg−1 | | |
Teberebie spring 2 | | 1.94 (0.94–2.94) mgkg−1 | 0.06 mgkg−1 | | 189.2 (134.3–244.1) mgkg−1 | 0.20 mgkg−1 | | | 230.2 mgkg−1 | | |
Teberebie spring 3 | | 1.06 (0.79–1.33) mgkg−1 | 0.01 mgkg−1 | | 117770 mgkg−1 | 0.43 mgkg−1 | | | 1201 mgkg−1 | | |
|
Oppong et al. 2010 [32] | Soil, sediments and fish from the River Pra Basin at Daboaso, Beposo, Twifo Praso and Twifo Mampong | | | | | | | | | | | |
| Daboase | | | | | | | | | | |
| Sediment | | 0.707 mgkg−1 | | | | | | | | |
| Soil | | 0.075 mgkg−1 | | | | | | | | |
| Fish | | 0.166 mgkg−1 | | | | | | | | |
| Beposo | | | | | | | | | | |
| Sediment | | 0.575 mgkg−1 | | | | | | | | |
| Soil | | 0.145 mgkg−1 | | | | | | | | |
| Fish | | 0.153 mgkg−1 | | | | | | | | |
|
Adokoh et al. 2011 [70] | Sediments in Pra Estuary at Shama | Sediment | 0.016 mgkg−1 | 0.017 mgkg−1 | | | | | | | | |
|
Koranteng Addo et al. 2011 [84] | Abandoned open pit in the Tarkwa mining district | Sand | | | 53151.28 (145–119,166) mgkg−1 | 34.45 (26.67–1595) mgkg−1 | | 21.06 (4.17–43.17) mgkg−1 | | 12 (6.5–56.17) mgkg−1 | | |
| Clay | | | 71013.08 (67,000–134,833.3) mgkg−1 | 56.76 (36.16–147.3) mgkg−1 | | 20.35 (15–27.67) mgkg−1 | | 13.56 (9.17–21.83) mgkg−1 | | |
|