https://gphjournal.org/index.php/as <p style="font-family: 'Segoe UI', sans-serif; font-size: 16px; color: #333;"><strong>GPH-International Journal of Applied Science&nbsp;(e-ISSN&nbsp;<a href="https://portal.issn.org/resource/ISSN/3050-9653" target="_blank" rel="noopener">3050-9653</a>)</strong> is a peer-reviewed, open-access journal dedicated to promoting the practical application of scientific discoveries across diverse disciplines. The journal publishes original research, comprehensive reviews, and case studies in areas such as engineering, technology, environmental science, biotechnology, and more. It serves as a global platform for researchers, practitioners, and innovators to share cutting-edge solutions, address real-world challenges, and drive progress in applied science.</p> Global Publication House en-US GPH-International Journal of Applied Science 3050-9653 <p>Author(s) and co-author(s)&nbsp;jointly&nbsp;and severally represent and warrant that the Article is original with the author(s) and does not infringe any&nbsp;copyright or violate any other right of any third parties, and that the Article has not been published&nbsp;elsewhere.&nbsp;Author(s) agree to the terms that the <strong>GPH Journal</strong> will have the full right to remove the published article on any misconduct found in the published article.</p> https://gphjournal.org/index.php/as/article/view/2546 <p>This study evaluated the heavy-metal contamination in soils and surface water at three informal e-waste burning sites in Lagos State: Alaba International Market, Ikeja Computer Village, and Abule-Egba scrapyard. The study objective was to evaluate the heavy metal pollution indices of soil and water and. A descriptive cross-sectional design was used. Soil samples were collected at two depths (0–15 cm and 15–30 cm), while surface-water samples were taken from nearby drainage channels. The heavy metal concentrations (Pb, Cd, Cr, Cu, Zn, and Ni) were determined using Atomic Absorption Spectrophotometry. Pollution indices (CF, PLI, NPI, WQI) and ANOVA was applied to interpret the results. The soils at the three sites were strongly acidic compared with the control soil, showing the long-term effect of e-waste burning and dismantling. Heavy-metal concentrations were extremely high in the surface soils, with lead reaching 432 mg/kg at Alaba, and remained elevated in deeper layers, indicating downward movement over time. Water samples also exceeded WHO limits, and the Water Quality Index rated the sites as poor to very poor. A notable finding was the unusually high zinc level at Abule-Egba, showing that even small scrapyards can become serious contamination hotspots. Overall, the study provides a clearer understanding of how heavy-metal pollution develops and spreads at informal e-waste sites and highlights the need for stricter controls, safer recycling practices, improved testing, and continuous monitoring to reduce long-term environmental risks.</p> OMEIKE, EMMANUEL AMAH, VICTOR E. UDEH. N. U. ##submission.copyrightStatement## https://creativecommons.org/licenses/by-nc-nd/4.0 2026-07-31 2026-07-31 9 7 01 17 10.5281/zenodo.21848375