References
- [1]. J.S.T. Puckett, Exporting harm: the high-tech trashing of Asia. The Basel Action Network. Seattle 7 Silicon Valley Toxics Coalition (2002).
- [2]. Solving the E-Waste Problem (StEP) What is e-waste? UNU/StEP initiatives (2012). http://www.step-initiative.org/index.php/Initiative_WhatIsEwaste.html. Accessed January 07, 2016.
- [3]. C. LaCoursiere, Electronic Waste Recovery Business (E-120). Business Communication Company (BCC), Norwalk, CT USA (2005).
- [4]. J.R. Mueller, M.W. Boehm, C. Drummond, Direction of CRT waste glass processing: Electronics recycling industry communication, Waste Manage 32 (2012) 1560-1565.
- [5]. O. Odeyingbo, I. Nnorom, O. Deubzer, R. Kühr, O. Osibanjo, P. Onianwa, G. Adie, S. Adrian, K. Willke, The person-in-the-port project: volumes and quality of used electronics imports into Nigeria, 2016 Electronic Goes Green (EGG) conference, 6-9 September, Berlin, Germany (2016).
- [6]. I.C. Nnorom, O. Osibanjo, M.O.C. Ogwuegbu, Global disposal strategies for cathode ray tubes, Resource Conserv. & Recycl. 55 (2011) 275-290.
- [7]. M. Romic, Bioavailability of trace metals in terrestrial environment: Methodological issues, Eur. Chem. Bulletin 1 (2012) 489-493.
- [8]. I.U. Umoren, P.C. Onianwa, Concentrations and distribution of some heavy metals in urban soils of Ibadan, Nigeria, Pakistan J. Sci. & Ind. Research 48 (2005) 397-403.
- [9]. P.O. Oviasogie, E. Omonuji, Levels of heavy metals and physiochemical properties of soil in a foam manufacturing industry, J. Chem. Soc. Nig. 32 (2007) 102-106.
- [10]. G. E. Nwajei, C. M. A. Iwegbue, M. I. Okafor, Heavy metals in surface soils under waste dumps from Onitsha, Nig. J. Biolog. Sci. 7 (2007) 405-408.
- [11]. G.U. Adie, O. Osibanjo, Assessment of soil-pollution by slag from an automobile battery manufacturing plant in Nigeria, Afr. J. Environ. Sci. & Technol. 3 (2009) 239-250.
- [12]. S.A. Osakwe, F. Egharevba, Sequential fractionation of cadmium, copper, lead and chromium in soils around municipal solid waste dumps in Agbor, Nigeria, J. Chem. Soc. Nig. 33 (2008) 139-147.
- [13]. S.E. Musson, Y.C. Jang, T.G. Townsend, I.H. Chung, Characterization of lead leachability from cathode ray tubes using the toxicity characterization leaching procedure, Environ. Sci. & Technol. 34 (2000) 4376-4381.
- [14]. A. Keith, K. Kessling, K.F. Fitzwater, J. Pichtel, D. Houy, Assessment of Pb, Cd, Cr and Ag leaching from electronics waste using four extraction methods, J. Environ. Sci. & Health A43 (2008) 1717-1724.
- [15]. T.C. Ling, C.S. Poon, Utilization of recycled glass derived from cathode ray tube glass as fine aggregate in cement mortar, J. Hazard. Mater. 192 (2011) 451-456.
- [16]. G.E. Rayment, F.R. Higginson, Australian Handbook of Soil and Water Chemical Methods. Melbourne, Australia: Inkata Press (2002).
- [17]. A. Walkley, I.A. Black, An examination of the digestion method for the determination of soil organic matter and a proposed chromic acid titration, Soil Sci. 37 (1934) 29 - 38.
- [18]. M. Radojevic, V.M. Bashkin, Practical Environmental Analysis, Royal Society of Chemistry, Cambridge, United Kingdom (1999).
- [19]. G. Müller, Index of geoaccumulation in the sediments of the Rhine River, Geojournal 2 (1969) 108-118.
- [20]. A. Tessier, P.G.C. Campbell, M. Bisson, Sequential extraction procedure for the speciation of particulate trace metals, Anal. Chem. 51 (1979) 844-851.
- [21]. C.M.A. Iwegbue, G.E. Nwajei, O.I. Eguavoen, Impact of land-use patterns on chemical properties of trace elements in soils of rural, semi-urban and urban zones of the Niger Delta, Nigeria, Soil & Sed. Contam. 21 (2012) 19-30.
- [22]. S. Kabiru, R. Yakubu, A. Lukman, T. Akintola, M. Alegbemi, Heavy metal content in soil in Garki Area Council of Federal Capital Territory, Abuja, Nigeria, Biochem. & Anal. Biochem. 4 (2015) 197.
- [23]. M.D. Adesokan, G.U. Adie, O. Osibanjo, Soil pollution by toxic metals near e-waste recycling operations in Ibadan, Nigeria, J. Health & Prom. 6 (2016) 26-33.
- [24]. C.M.A. Iwegbue, C.L. Overah, K. Opuene, E.K. Ossai, G.E. Nwajei, Distribution of metals in urban street dust in Benin City, Pakistan J. Sci. & Ind. Research 56 (2013) 165-175.
- [25]. A. Wali, G. Coinet, M. Khadhraoui, M. Ksibi, Trace metals in surface soil contamination by release of Phosphate industry in the surroundings of Sfax-Tunisia, Environ. Research, Eng. & Manage 65 (2013) 20-30.
- [26]. O.O. Ojuri, O.A. Taiwo, O.O. Oluwatuyi, Heavy metal migration along a rural highway route: Ilesha -Akure roadside soil, southwestern, Nigeria, Global NEST J. 18 (2016) 742-760.
- [27]. National Environmental Standards Regulatory Enforcement Agency (NESREA), Regulations on chemical, pharmaceutical, soaps and detergent manufacturing sector; Schedule IV, Regulation 7 - Soil quality standards (2009).
- [28]. A.A. Chokor, E.O. Ekanem, Heavy Metals Contamination Profile in Soil from Automobile Workshops in Sapele, Nigeria, World J. Anal. Chem. 4 (2016) 26-28.
- [29]. K. Bridgen, I. Labunska, D. Santillo, P. Johnston, Chemical contamination at e-waste recycling and disposal site in Accra and Koforidua, Ghana. Greenpeace Research Laboratories Technical Notes 10/2008 (2008). Retrieved from http://www.greenpeace.org/international/Global/international/planet-2/report/2008/9/chemical-contamination-at-e-wa.pdf.
- [30]. M. Romic, D. Romic D. Dolanjski, I. Stricevic, Heavy metal accumulation in top-soils from wine growing regions, Agric. Conspectus Scientificus 69 (2004) 1-10.
- [31]. C.M.A. Iwegbue, S.A. Osakwe, C.I. Elokozie, G. E. Nwajei, Concentrations, human and ecological risks of metals in soils in the vicinity of asphalt in delta State, Nigeria, Jordan J. Earth & Environ. Sci. 7 (2015) 49-63.
- [32]. E.B. Agbaji, S.E. Abechi, S.A. Emmanuel, Assessment of heavy metals level of soil in Kakuri industrial area of Kaduna, Nigeria, J. Sci. Research & Reports 4 (2015) 68-78.
- [33]. E.U. Etim, G.U. Adie, Assessment of toxic heavy metal loading in top-soil samples within the vicinity of a limestone quarry in South Western Nigeria, Afr. J. Environ. Sci. & Technol. 6 (2012) 322-330.
- [34]. P. Kotoky, B.J. Bora, N.K. Baruah, P. Baruah, G.C. Borah, Chemical fractionation of heavy metals in soils around oil installation, Assam, Chemical Speciation & Bioavail. 15 (2003) 115-125.
- [35]. G.O. Adewuyi, M.T. Osobamiro, Chemical speciation and potential mobility of some toxic metals in tropical agricultural soil, Research J. Environ. Toxicol. 10 (2016) 159-165.
- [36]. L. Dabrowska, Speciation of heavy metals in sewage sludge after mesophilic and thermophilic anaerobic digestion, Chem. Papers 66 (2012) 598-606.
- [37]. L.O. Ajala, V.I. Onwukeme, Trace metals speciation in floodplain soil in Enugu Metropolis, Nigeria, J. Appl. Chem. 1 (2012) 9-13.
- [38]. S. Shivakumar, S. Srikantaswamy, S. Sreenivasa, B. M. Kiran, Speciation and geochemical behaviour of heavy metals in industrial area soil of Mysore City, India, J. Environ. Protection 3 (2012) 1384-1392.
- [39]. A.K. Papafilippaki, M.E. Kotti, G.G. Stavroulakis, Seasonal variation in dissolved heavy metals in the Keritis River, Chania, Greece. Global NEST J. 10 (2008) 320-325.
- [40]. L.O. Ajala, V.I. Onwukeme, M.N. Mgbemena, Speciation of some trace metals in floodplain soil of Eke-Mgbom, Afikpo, Nigeria, Am. Chem. Sci. J. 4 (2014) 963-974.
- [41]. C.M.A. Iwegbue, G.E. Nwajei, O. Eguavoen, J.E. Ogala, Chemical fractionation of some heavy metals in soil profiles in vicinity of scrap dumps in Warri, Nigeria, Chemical Speciation & Bioavail. 21 (2009) 99-110.
- [42]. V M. Ngole, Using soil heavy metal enrichment and mobility factors to determine potential uptake by vegetables, Plant Soil Environ. 57 (2011) 75-80.