Distribution of Polycyclic Aromatic Hydrocarbons in Soils within Vicinity of an Electronic Waste Open Burning Workshop in Aba, South East Nigeria
Keywords:
Aba, composition, diagnostic ratio, e-waste, open burning, PAHs.Abstract
Electronic waste (e-waste) workshops distributed in the commercial city of Aba, South East Nigeria, employ open burning to extract valuable sub-assemblies from the e-waste. Polycyclic aromatic hydrocarbons (PAHs) were studied in soils (0-5 cm) collected from three sampling points within an e-waste workshop vicinity: the e-waste open burning site (OBS-X), 30 m from the open burning site (OBS-30m) and 70 m from the open burning site (OBS-70m). Concentrations of 16 USEPA PAHs in the soils were characterized by dominance of high molecular weight (HMW) over low molecular weight (LMW). The most abundant PAHs were DA 26.45%, IP 13.82% and BbF 13.07% in OBS-X, BaA 19.78%, BbF 17.15% and BaP 16.80% in OBS-30m and Chr 23.73%, BP 14.26% and Nap 8.871% in OBS-70m. Source diagnostic PAH isomer ratios determined are Phe/Ant from 0.73 - 1.36, Fth/Pyr 1.52 - 3.79, BaA/Chr 0.29 - 28.27 and BkF/BaP 0.11 - 1.31. These results from PAH distributions and compositions indicated incomplete combustion source for pyrogenic PAHs in OBS-X and OBS-30m and mix combustion-petroleum source for PAHs in OBS-70m. In conclusion, the open burning of e-waste in Aba metropolis largely contaminated soils from the workshop vicinity, particularly with carcinogenic HMW PAHs.
References
. J. Halluite, J.D. Linton, J.S. Yeomans and R. Yoogalingam.
. A. Chen, K.N. Dietrich, X. Huo and S. Ho.
. Daily Times.
. K. Hrvoje, K. Natalija and L.B. Ana.
. P.D. Boehm.
. N.R. Khalili, P.A. Scheff and T.M. Holsen.
. K. Liu, W. Han, W.P. Pan and J.T. Riley.
. W.T. Hsu, M.C. Liu, P.C. Hung, S.H. Chang and M.B. Chang.
. A.O.Barakat, A.R Mostafa, Y. Qian and M.C. Kennicutt II.
. W.J. Lee, W.H. Chao, M. Shih, C.H. Tsai, T.J. Chen and P.J. Tsai.
. A.A. Olajire and W. Brack.
. M.B. Yunker, R.W. Macdonald, R. Vingarzan, R.H. Mitchell, D. Goyette and S. Sylvestre.
. Agency for Toxic Substances and Disease Registry (ATSDR) (August, 1995). Toxicological profile for polycyclic aromatic hydrocarbons (PAHs). Atlanta, GA: US Department of Health and Human Services, Public Health Service. [On-line]. http://www.atsdr.cdc.gov/toxprofile/tp69.html [May 12, 2014].
. H.I. Abdel-Shafy and M.S.M. Mansour.
. United State Environmental Protection Agency (US EPA) (January, 2008). Polycyclic aromatic hydrocarbons (PAHs) - EPA fact sheet. Washington (DC): United State Environmental Protection Agency, National Center for Environmental Assessment, Office of Research and Development. [On-line] http://www.epa.gov/osw/hazard/wastemin/minimize/factshts/pahs.pdf [August 12, 2015].
. X.Z. Yu, Y. Gao, S.C. Wu, H.B. Zhang, K.C. Cheung and M.H. Wong.
. A. Leung, Z.W. Cai and M.H. Wong.
. E.C. Ukpong, E.A. Udo and I.C. Umoh.
. Wang Z.
. A.A. Meharg, J. Wright, H. Dyke and D. Osborn.
. M.O. Onyema, L.C. Osuji and B.O. Isiuku.
. K.E. Peters, C.C. Walters and J.M. Moldowan. The Biomarker Guide: Biomarkers and isotopes in petroleum exploration and earth history, Vol. 2 second ed. UK: Cambridge University Press, 2005, 700 pp.
. Z. Wang, K. Li, P. Lambert and C. Yang.
. M.O. Onyema, L.C. Osuji and I.P. Ilechukwu.
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