作者
Joseph C Akan, Naomi Battah, Maimuna Waziri, Musa M Mahmud
发表日期
2015
期刊
American Journal of Environmental Protection
卷号
3
期号
5
页码范围
164-173
简介
Water and sediment samples from ten (10) different sampling points along river Benue, in Vinikilang, Yola, Adamawa State, Nigeria, were collected for the determination of organochlorine (o, p-DDE, p, p’-DDD, o, p’-DDD, p, p’-DDT, p, p’-DDT dieldrin and aldrin), organophosphorus (dichlorvos, diazinon, chlorpyrifos, fenitrothion and Malathion) and pyrethriod (cypermethrin, bifenthrin, permethrin and deltamethrin) pesticide residues. Sample collection and preparation were carried out using standard procedures. The concentrations of all the pesticides in water and sediment samples were determined using GC/MS SHIMADZU (GC-17A) equipped with electron capture detector. The concentrations of organochlorine, organophosphorus and Pyrethriod pesticide residues were significantly higher in the sediment samples than water samples. According to the concentrations and detection frequency, dieldrin and aldrin were the most dominant compounds among the organochlorine pesticide residues. The total concentration of aldrin in the water sample was 2.96 mg/l compared to 11.25 µg/g in the sediment sample and the total concentration of dieldrin in the water sample was 4.36 mg/l compared to 13.37 µg/g in the sediment sample. Chlorpyrifos and dichlovos were the most dominant compounds among the organophosphoruses with the total concentration of Dichlorvos in the water sample being 0.57 mg/l and 22.16 µg/g in the sediment sample. Permethrin and deltamethrin were the dominant compounds among the pyrethroid pesticides. The total concentration of cypermethrin in the water sample was 0.69 mg/l, whereas in the sediment samples, 10 …
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