Skip to content
Research Article Open access CC BY 3.0

Heavy Metals Concentration at Electronic-Waste Dismantling Sites and Dumpsites in Lagos, Nigeria

E. A. Ofudje, S. O. Alayande, G. O. Oladipo, O. D. Williams, O. K. Akiode

International Research Journal of Pure and Applied Chemistry · pp. 678–690 · Published 25 Jun 2014

10.9734/IRJPAC/2014/7694

Abstract

The importation and refurbishing of second-hand electrical and electronic equipment (EEE) is a major concern all over the world and Nigeria is not in exception owing to the generation of e-wastes. The assessment of the levels of Pb, Cr, Ni, Cd and Zn in the dust at dismantling sites and soil from dumpsites in Lagos municipal was performed using Atomic Absorption Spectroscopy. Control samples were also taken at 1km away from each site. At the dismantling sites, the concentration of Pb, Cr, Ni, Cd and Zn were found to range between 99.63 to 141.90 mg/kg, 14.80 to 21.88 mg/kg, 30.41 to 55.68 mg/kg, 10.55 to 23.56 mg/kg and 57.61 to 111.48 mg/kg, while that of the control site ranged between 44.31 to 73.33 mg/kg, 6.62 to 13.42 mg/kg, 16.44 to 34.13 mg/kg, 5.86 to 14.40 mg/kg and 20.35 to 60.73 mg/kg respectively. At the dumpsites, the contents of Pb, Cr, Ni, Cd and Zn were found to range between 152.30 to 328.40 mg/kg, 23.94 to 30.80 mg/kg, 53.75 to 64.81 mg/kg, 24.86 to 31.40 mg/kg and from 211.46 to 306.94 mg/kg, while that at the control sites range between 74.60 to 162.90 mg/kg, 11.43 to 16.52 mg/kg, 36.91 to 41.43 mg/kg, 10.91 to 20.84 mg/kg and 116.90 to 178.31 mg/kg respectively. Heavy metals concentrations at the dumpsites were found to be higher than what was observed in the dust samples at the dismantling sites. Also, the control samples showed lower concentration when compared with the dismantling sites and that of the dumpsites. This result indicates that e-waste contributes to the concentration of heavy metals in the soil and dust sample where e-waste are being dismantled and the dumpsites where the unused electrical and electronic equipment are being disposed.  

Dismantling sites dumpsites E-waste heavy metals

References (8)

  1. 1 Handling e-waste in developed and developing countries: Initiatives, practices, and consequences [DOI]
  2. 2 Diagnostic health risk assessment of electronic waste on the general population in developing countries' scenarios [DOI]
  3. 3 E-waste hazard: The impending challenge [DOI]
  4. 4 Heavy Metal Concentration of Surface Dust Present in E-Waste Components: The Westminister Electronic Market, Lagos Case Study [DOI]
  5. 5 Heavy Metal Contents of Municipal and Rural Dumpsite Soils and Rate of Accumulation by Carica papaya and Talinum triangulare in Uyo, Nigeria [DOI]
  6. 6 Assessment of heavy metals bioavailability in dumpsites of Zaria Metropolis, Nigeria [DOI]
  7. 7 Heavy metals in top soils of Abeokuta dump sites [DOI]
  8. 8 Enrichment Of Cr, Mn, Ni And Zn In Surface Soil [DOI]

Cited by 30

Heavy metals research in Nigeria: a review of studies and prioritization of research needs

Gideon Aina Idowu · Environmental Science and Pollution Research · 2022

Ecological Risk and Human Health Implications of Heavy Metals Contamination of Surface Soil in E-Waste Recycling Sites in Douala, Cameroun

Romaric Emmanuel Ouabo, Mary B. Ogundiran, Abimbola Y. Sangodoyin · Journal of Health and Pollution · 2019

Showing 12 of 30 known citations — external sources report more than can currently be individually listed.

Related research

Article metrics

Real usage data collected on this platform.

24

Page views

0

PDF downloads

2

Outbound clicks

30

Citations

Views over time

Views by country

Approximate, from request IP at view time — not citizenship or institution. Countries with fewer than 5 views are grouped as "Other".

Traffic sources

Referring site, by host.

Views and downloads exclude known bots/crawlers. Citations combines this platform's own DOI-resolved index with each external source's own reported total — see Cited by above for individually listed citing works. Last refreshed 0 seconds ago.