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IJSTR >> Volume 2- Issue 1, January 2013 Edition

International Journal of Scientific & Technology Research  
International Journal of Scientific & Technology Research

Website: http://www.ijstr.org

ISSN 2277-8616

Small Scale Gold Mining And Heavy Metal Pollution: Assessment of Drinking Water Sources In Datuku In The Talensi-Nabdam District.

[Full Text]



Cobbina, S. J., Myilla, M, Michael, K.



Key words:- Datuku, small scale gold mining, Water quality, heavy metal pollution.



Abstract:- Most people in rural areas in sub-Saharan Africa are poverty stricken. They support their livelihoods by the exploitation of natural resources in their vicinity which often result in environmental degradation. This study was carried out in Datuku in the Talensi-Nabdam District in the Upper East region of Ghana to assess the effect of small scale gold mining on the quality of drinking water in the community. Water quality was based on physico-chemical analysis of samples collected from water source in the community. A total of seventy-two water samples were collected from surface and ground water sources in the study area for a period of six months and analysed. Generally many of the parameters analysed were well within the World Health Organisation's (WHO) recommended limits for drinking water quality. pH ranged from 6.72 to 7.95 (7.3), conductivity ranged from 204 to 1565 us/cm (666.5 us/cm), chloride ranged from 8 to 113 mg/l (44.13 mg/l), sulfate ranged from 4.7 to 428 mg/l (39.81 mg/l) and 0.018 to 19.41 mg/l (2.23 mg/l) for total iron. A few of the parameters were however, above WHO's limits. Turbidity, nitrate, cadmium, total iron, manganese and arsenic levels were higher than WHO's recommended limits for drinking water quality. Turbidity ranged from 1 to 447 NTU (55 NTU), nitrate ranged from 0.15 to 595 (47.1), cadmium ranged from 0.005 to 0.029 mg/l (0.014 mg/l), manganese ranged from 0.036 to 2.24 mg/l (0.66 mg/l) and 0.001 to 0.009 mg/l (0.003 mg/l) for arsenic.



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