Abstract
Human beings working or living near an industrial site where toxic chemicals such as As, Hg, Cd, Cu, Mn, Pb, Zn and or their compounds are used or indiscriminately discharged into the environment, are constantly exposed to such chemicals via ingestion (drinking or eating), dermal contact or inhalation (breathing). However, in developing countries such as Ghana, limited data on levels of the aforementioned chemicals in whole blood and serum of human beings as a result of exposure to the aforementioned chemicals from mining communities and non-mining communities is preventing effective policy formulation to protect human health. Hence, this study was undertaken to measure the levels of the aforementioned toxic chemicals in whole blood and serum of 300 resident adults from mining (Tarkwa Nsuaem Municipality Assembly (TNMA) and Prestea Huni Valley District (PHVD)) and non-mining (Cape Coast Metropolis) communities in Ghana, using neutron activation analysis (NAA). Blood samples were taken from 200 resident adults (105 males and 95 females) from mining and 100 resident adults (60 males and 40 males) from non-mining communities in the study area following the completion of an informed consent and the issuance of ethical clearance by the Ghana Health Service Ethical Committee. The mean concentrations for As, Hg, Cd, Cu, Mn, Pb and Zn in whole blood of residents from mining communities were as follows: 38 ± 320 μg/L, 63 ± 0.23 μg/L, 303 ± 117 μg/L, 3300 ± 953, 195 ± 90 μg/L, 28 ± 14 μg/L and 1405 ± 458 μg/L, respectively; while the levels of measured toxic chemicals in the serum of resident adults from mining communities were as follows: 65 ± 14 μg/L, 358 ± 22 μg/l, 134 ± 12 μg/L, 3590 ± 254 μg/L, 401 ± 113 μg/L, 58 ± 5.8 μg/L and 49 ± 31 μg/L, respectively, for As, Hg, Cd, Cu, Mn, Pb and Zn and were found to have exceeded the permissible WHO guideline values.
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This work was supported by a research grant from the Centre for Environmental Impact Analysis Research Foundation.
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Informed consent was obtained from the participants and ethical clearance by the Ghana Health Service Ethical Committee was issued. The authors further disclose no conflict of interest
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Obiri, S., Yeboah, P.O., Osae, S. et al. Levels of arsenic, mercury, cadmium, copper, lead, zinc and manganese in serum and whole blood of resident adults from mining and non-mining communities in Ghana. Environ Sci Pollut Res 23, 16589–16597 (2016). https://doi.org/10.1007/s11356-016-6537-0
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DOI: https://doi.org/10.1007/s11356-016-6537-0