Determination of Some Organochlorine Pesticide Residues in Vegetable and Soil Samples from Alau Dam and Gongulong Agricultural Sites, Borno State, North Eastern Nigeria
Five vegetables (spinach, lettuce, cabbage, tomato, and onion) were freshly harvested from the Alau Dam and Gongulong agricultural areas for the determination of some organochlorine pesticide residues (o, p-DDE, p,p’-DDD, o,p’-DDD, p,p’-DDT, α-BHC, γ-BHC, metoxichlor, lindane, endosulfan dieldrin, and aldrin.) Soil samples were also collected at different depths for the determination of the above pesticides. Samples collection and preparation were conducted using standard procedures. The concentrations of all the pesticides in the soil and vegetable samples were determined using GC/MS SHIMADZU (GC-17A) equipped with electron capture detector (ECD). The highest concentration was that of p,p’-DDD (132.4±13.45µg/g) which was observed in the leaf of cabbage, while the lowest concentration was that of p,p’-DDT (2.34µg/g) was observed in the root of spinach. Similar trends were observed at the Gongulong agricultural area, with p,p’-DDD having the highest concentration of 153.23µg/g in the leaf of cabbage, while the lowest concentration was that of p,p’-DDT (12.45µg/g) which was observed in the root of spinach. α-BHC, γ-BHC, Methoxychlor, and lindane were detected in all the vegetable samples studied. The concentrations of all the pesticides in the soil samples were observed to be higher at a depth of 21-30cm, while the lowest concentrations were observed at a depth of 0-10cm. The concentrations of all the pesticides in the vegetables and soil samples from the two agricultural sites were observed to be at alarming levels, much higher than the maximum residue limits (MRLs) and acceptable daily intake values (ADIs) .The levels of the pesticides observed in the vegetables and soil samples investigated, are of such a magnitude that calls for special attention and laws to regulate the use and circulation of such chemicals. Routine monitoring of pesticide residues in these study areas is necessary for the prevention, control and reduction of environmental pollution, so as to minimize health risks.
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 I.A. Al-Saleh, "Pesticides: a review article,” J. Environ. Pathol. Toxicol. Oncol, 1994, vol. 3, no. 3, pp. 151-161.
 B.E. Gillesby and T. R. Zacharewski, "Exo-estrogens: mechanism of action and strategy for identification and assessment,” Environ. Toxicol. Chem,1998, vol.17, no.1, pp. 3-14
 D. M. Koltz, "Identification of environmental chemicals with estrogenic activity using a combination of in-vitro assays,” Environ. Health. Perspect, 1996, vol. 104, pp. 1084-1089
 J. A. Skinner, K. A. Lewis, K. S. Bardon, P.Tucker, J. A. Catt and B. J. Chambers, "An overview of the environmental impact of agriculture in the UK,” J. Environ. Manage, 1997, vol. 50, no. 2, pp. 111-128
 H. Rudel,"Volatilization of pesticides from soil and plant surfaces,” Chemoshpere, 1997, vol. 35, no. 1-2, pp. 143-152.
 A. K. Bhattacharya, S. N. Mandel and S. K. Das "Biaccumulation of chromium and cadmium in commercial edible fishes of gangetic west bengel,” Trends in applied science. Research, 2003, vol. 1, pp.511-517.
 Li M. J. Redondo, M. J. Ruiz, G. Font and R. Boluda, "Dissipation and distribution of atrazine, simazine, chlorpyrifos and tetradifon residues in citrus orchard soil,” Arch. Environ. Contam. Toxicol, 1997, vol. 32, no. 4, pp, 346- 352.
 J. Miller and R. Miller, "Environmental carcinogenesis. In Environmental carcinogenesis. Emmelot P, Kriek E. (Eds), , Elsevier, Amsterdam, Holland, 1997, pp243-265
 Kj A. H. El-Sebae, "Genetic toxicology problems and perspectives: A case study and overview of Egyptian environment. Genetic toxicolocy of environmental chemicals Part B,” Genetic effects and applied mutagenesis, 1986, 273-281.
 J. D. Adams, Y. Iwata and F. A. Gunther, "The effects of dust derived from several types of soils on the dissioation of parathion and paraoxon dislodgable residues on citrus foliage,” Bull. Environ. Contam.Toxicol, 1976, vol. 15, no. 5, pp. 547-554.
 Kiu H. Ghardiri, C. W. Rose and D. W. Connell, "Degradation of organochlorine pesticides in soils under controlled environment and outdoor conditions,” J Environ Manage, 1995, vol. 43, no. 2, pp. 141-151
 J. E. Thomas, L. T. Ou and A. Al-Agely, "DDE remediation and degradation,” Rev. Environ.Contam. Toxicol, 2008, vol. 194, 55–69.
 R. A. Doong, C. K. Peng, Y. C. Sun and P.L. Liao,"Composition and distribution of organochlorine pesticide residues in surface sediments from the Wu-Shi River estuary, Taiwan,” Mar Pollut Bull, 2002, vol. 42, 246–253
 USDHHS, United State Department of Health and Human services, 1993.
 R. A. Westbom, N. Hussen, N. Megersa, L. Retta, A. Mathiason and E. Bjoklunda, "Assesment of organochlorine pesticide pollution in upper Awash, Ethiopian state farm soils using selective liquid extraction,” Chemosphere, 2008, vol. 72, pp. 1181-1187.
 C. K. Bempah and A.K. Donkor, "Pesticide residues in fruits at the market level in Accra Metropolis, Ghana, preliminary study,” Environ. Monit. Assess, 2010, vol. 175, pp. 551-561.
 S. B. Singh, N. T. Yadurju and G. Kulshrestha, "Residues of metochlor herbicide in soil and potato tubers under Indian tropical conditions,” Bull. Environ. Contam. Toxicol, 1997, vol. 59, pp. 216-221.
 M. N. Baig, A. L. Darwent, K. N. Harker and J. T. O’Donnovan, (1999). Preharvest applications of glyphosate for yellow toadflax (Linaria vulgaris) control. Weed Technology, 1999, vol. 13, pp. 777-782.
 M. I. Tariq, N. Afzal, I. Hussain and N. Sultana "Pesticides exposure in Pakista AReview,” Environ. Intl, 2006, vol. 33, pp. 1107-1122.