Heavy metals and arsenic in soil and vegetation of Niger Delta, Nigeria: Ecological risk assessment

Esther Amaka Okoye; Anthonet N. Ezejiofor; Ify L. Nwaogazie; Chiara Frazzoli; Orish E. Orisakwe

Case Studies in Chemical and Environmental Engineering (Dec 2022)

Heavy metals and arsenic in soil and vegetation of Niger Delta, Nigeria: Ecological risk assessment

Esther Amaka Okoye,
Anthonet N. Ezejiofor,
Ify L. Nwaogazie,
Chiara Frazzoli,
Orish E. Orisakwe

Affiliations

Esther Amaka Okoye: African Centre of Excellence for Oilfield Chemicals Research (ACE-CEFOR), University of Port Harcourt, PMB, 5323, Port Harcourt, Choba, Nigeria
Anthonet N. Ezejiofor: African Centre of Excellence for Public Health and Toxicological Research (ACE-PUTOR), Nigeria; Department of Experimental Pharmacology & Toxicology, Faculty of Pharmacy, University of Port Harcourt, University of Port Harcourt, PMB, 5323, Port Harcourt, Rivers State, Nigeria
Ify L. Nwaogazie: African Centre of Excellence for Oilfield Chemicals Research (ACE-CEFOR), University of Port Harcourt, PMB, 5323, Port Harcourt, Choba, Nigeria
Chiara Frazzoli: Department for Cardiovascular and Endocrine-Metabolic Diseases and Ageing, Istituto Superiore di Sanità, Rome, Italy
Orish E. Orisakwe: African Centre of Excellence for Public Health and Toxicological Research (ACE-PUTOR), Nigeria; Department of Experimental Pharmacology & Toxicology, Faculty of Pharmacy, University of Port Harcourt, University of Port Harcourt, PMB, 5323, Port Harcourt, Rivers State, Nigeria; Corresponding author. World Bank Africa Centre of Excellence in Public Health and Toxicological Research (PUTOR), University of Port Harcourt, PMB, 5323, Port Harcourt, Rivers State, Nigeria.

Journal volume & issue: Vol. 6
p. 100222

Abstract

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Present study has evaluated the occurrence of heavy metal HM in soil/vegetation, the ecological risk assessment of HM in crude oil rich Niger Delta, Nigeria. All samples were processed, and HM were assayed using Atomic Absorption Spectrophotometry. HM concentration in soil and vegetation were determined. Ecological Risk Assessments parameters; bioconcentration factor BCF, Pollution load Index PLI, geo-accumulation indices I geo, Modified Contamination Degree (mCD) and anthropogenic (man-made)ity were determined. Eleme and Trans-Amadi recorded the highest soil and vegetation levels of HM whereas Uyo had the lowest. Taken together, there was bioconcentration of toxicants from the soil to grazing plants.

Published in Case Studies in Chemical and Environmental Engineering

ISSN: 2666-0164 (Online)
Publisher: Elsevier
Country of publisher: United Kingdom
LCC subjects: Technology: Engineering (General). Civil engineering (General): Environmental engineering; Technology: Chemical technology: Chemical engineering
Website: https://www.journals.elsevier.com/case-studies-in-chemical-and-environmental-engineering

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