Bioaccumulation of heavy metals in edible foods in Osun River
JEZS
JEZS
Publisher: JEZS
Title: Bioaccumulation of heavy metals in edible foods in Osun River
Author: Ashaolu Victoria Oladimeji
Date of Publication: 2021
Type: Journal article
Volume: 9(5)
Citation style language: Not specified
Pollution Type:
Heavy metals (Pb, Zn, Cd, Hg, Mn, Ca, K, Cu, Ni, Fe, P, Mg, Na, Cr, Se, Co)
Domestic/industrial waste discharge
Agricultural run-off
Industrial effluents
Oil/chemical spills
Combustion emissions
Mining/metallurgical activities
Non-hazardous landfill sites
Impact Dimension:
Human health risks (cancer, organ damage, neurological disorders, high blood pressure)
Aquatic life mortality
Crustacean development impairment
Ecological disruption
Actor Type:
Food and Drug Administration (FDA)
Industries (Nigeria)
World Health Organization (WHO)
United Nations Environment Programme (UNEP)
Researchers
Response Type:
FDA enforcement of action levels
Research for heavy metal reduction
UNEP-compliant sampling protocols
Recommendation for Osun River food consumption
Moderate crab intake advisory
Aquaculture system promotion
Evidence Type:
Experimental study (fish/crab sampling)
Proximate analysis
Dry ash digestion + atomic absorption spectrophotometry
WHO standards comparison
Tabular/figurative data presentation
Policy Mention:
FDA action level enforcement
UNEP reference methods
WHO water quality standards
Key Finding:
No detectable heavy metals in Osun River foods
Catfish: highest protein concentration
Crabs: rich in Ca, Fe, Na, Zn
All metals/minerals within safe consumption limits
Pollution absence linked to non-industrial riverside activities
Crabs (bottom feeders) show higher metal accumulation than fish
Health Risk Projection:
Heavy metals linked to cancer, organ damage, and neurological disorders
High sodium in crabs may elevate blood pressure
No recorded human poisonings (attributed to local beliefs/poor clinical analysis)
Aquaculture recommended to minimize contamination risks
URL: www.entomoljournal.com
DOI: https://doi.org/10.22271/j.ento.2021.v9.i5c.8835
ISBN, ISSN, PMID:
P-ISSN: 2349-6800
E-ISSN: 2320-7078