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Healt. Risk Associat.d wit. Pest.cide Cont.minat.on of Fish from t.e Densu River Basin in Ghana

Journal of Environment.l Prot.ct.on 2011年第2期2卷 115-123页

作者： J. R. Fianko A. Donkor S. t. Lowor P. O. Yeboah E.t. Glover t. adom A. Faanu 不详

t.e Densu River Basin const.t.t.s one of t.e largest.agricult.ral areas in Ghana. t.e pract.ce of using pest.cides such as organochlorines, organophosphat.s, carbamat.s, pyret.roids and several ot.ers in agricult.re and public healt. programs has raised concerns about.pot.nt.ally adverse effect. on human healt. and t.e environment. In t.is st.dy, a field survey was conduct.d t. assess farmers’ knowledge of safe handling and use of pest.cides. Residues of pest.cides in fish samples as well as t.e pot.nt.al healt. risk associat.d wit. exposure t. t.ese pest.cides were also evaluat.d. Dat. obt.ined from t.e field survey indicat. t.at.a very high proport.on of farmers are at.high risk of pest.cide poisoning from occupat.onal exposure. More t.an 90% of farm workers do not.pract.ce safet. precaut.on during pest.cide formulat.on and applicat.on leading t. considerable prevalence of pest.cide relat.d illness in t.is agricult.ral communit.. Pest.cide residues in fish samples varied great.y;from 0.10 μgKg-1 t. 30.90 μgKg-1, consumpt.on of fish and fisheries product.from t.e basin was no zero risk. t.e est.mat.d dose for aldrin, met.oxychlor, γ-chlordane, endrin aldehyde, endrin ket.ne, endrin, p'p'-DDt.and δ- HCH do not.pose a direct.hazard t. human healt., alt.ough present.in fish samples since t.e values were lower t.an t.xic t.resholds as well as reference dose. However, γ- HCH, hept.chlor, α-endosulfan, endosulfan Sulphat., p'p'-DDE and dieldrin levels exceeded t.e reference dose, indicat.ng a great.pot.nt.al for syst.mic t.xicit. in children who are considered t. be t.e most.vulnerable populat.on subgroup.

关键词： Ghana Pest.cide Residue Exposure Healt. Risk Densu

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