OLABAMIJI OLAYINKA ALIU

Science Laboratory Technology

At the Science Laboratory Technology department office

Appointment on Visitation important

#	Certificate	School	Year
1.	Ph.D (RADIATION AND HEALTH PHYSICS)	DEPARTMENT OF PHYSCIS, OLABISI ONABANJO UNIVERISTY	2020

Heavy Metal Contamination in Environmental Matrices and Associated Plant Diversity in Lagos Dumpsite, Nigeria

Rapid urbanization in Lagos, Nigeria, has resulted in uncontrolled dumpsites, notably the Igando dumpsite, where indiscriminate disposal of municipal and electronic waste poses significant risks of heavy metal contamination. Soil, groundwater and plant samples were collected in and around the dumpsite. Samples were digested and analyzed using Inductively Coupled Plasma–Optical Emission Spectroscopy (ICP-OES). Contamination was evaluated using Contamination Factor (CF), Pollution Index (PI), Geo-accumulation Index (Igeo), Chronic Daily Intake (CDI), and Hazard Quotient (HQ) models, with WHO standards as reference values. Concentrations of Pb, Cd, Cr, Ni, and Hg in both soil and water frequently exceeded WHO permissible limits. The mean Pb concentration in water was higher than the safe limit by more than three-fold, while Cd and Hg levels also showed elevated values. Pollution indices revealed moderate to severe contamination in several sites. Health risk assessment indicated that both children and adults are at risk of non-carcinogenic and carcinogenic effects, primarily from Pb and Cd exposure.The Igando dumpsite environment is significantly contaminated with toxic heavy metals, posing serious threats to human health and ecological sustainability. Urgent remediation, enforcement of waste management regulations, and provision of safe drinking water are necessary to safeguard surrounding communities.

OLABAMIJI ALIU is a Lecturer II at the Department of Science Laboratory Technology

OLABAMIJI has a Ph.D in RADIATION AND HEALTH PHYSICS from DEPARTMENT OF PHYSCIS, OLABISI ONABANJO UNIVERISTY