ArticleScientific reports2025
Human health risk assessment of metals and metalloid in food crops harvested from crude oil impacted community in Niger Delta, Nigeria.
Article in Scientific reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- A Multidisciplinary Review of Phytoremediation Strategies for Heavy Metal-Contaminated African Soils: From Geochemical Assessment to Genetic Enhancement.Journal of xenobiotics · 2026Review
- Organ-Specific Accumulation and Health Risk Assessment of Aliphatic and Polycyclic Aromatic Hydrocarbons in Tilapia zillii.Environmental analysis, health and toxicology · 2026Article
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Authors and funding
7 authors.
Funding
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Abstract
This study evaluated the human health risks associated with consuming food crops contaminated with metals and metalloids in a crude oil-impacted area of the Niger Delta, Nigeria. A total of 48 composite samples (12 each of yam, cassava, cocoyam, and waterleaf) were collected from the Ibaa community and its Right-of-Way (ROW) zone. Edible portions were acid-digested (HNO₃/HClO₄, 3:1) and analyzed for As, Pb, Cd, Cu, and Zn using Graphite Furnace Atomic Absorption Spectrophotometry (GF-AAS; Hitachi Z-2000, Tokyo, Japan). Quality assurance included reagent blanks, certified reference materials, and spike recoveries, with recoveries of 92-107%, RSD < 5%, and detection limits of 1.73 µg/L (Pb), 0.02 µg/L (Cd, Cu, Zn), and 2.0 µg/L (As). Mean concentrations (mg/kg) in crops from the ROW were Pb: 0.0028-0.0118, As: 0.0002-0.0030, Cd: 0.0008-0.0027, Cu: 7.99-9.37, and Zn: 16.17-77.51, while control samples showed significantly lower levels. Principal Component Analysis (PCA) indicated two dominant contamination sources: anthropogenic Pb-Cd inputs from petroleum activities and Cu from agrochemical use. Estimated Daily Intake (EDI) revealed higher exposure in children, with maximum values for Zn (7.9 × 10
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