PAHs

Spatial Distribution, Potential Risks and Sources of Polycyclic Aromatic Hydrocarbons in Sediments of Oleri River, Delta State, Nigeria

The spatial distribution, associated risks and sources of polycyclic aromatic hydrocarbons in sediment of the Oleri River in Delta State were examined in this study. Six sediments were obtained from six locations in the Oleri River and analyzed for the 16 priority PAHs using gas chromatograph coupled with mass spectrometry after extraction with dichloromethane and hexane. The levels of the ∑16-PAHs in the sediment ranged from 73.0-423 µg/kg. The higher molecular weight PAHs were the dominant PAHs in the sediments.
AuthorName(s)
Kenneth A. Ibe
Austin O. Dolor
Efe Ohwo
Mercy Udezi

Elucidation of the Physicochemical Characteristics and Health Risk Assessment of Heavy Metals in the Sediment of Ajoki River, Ikpoba-Okha Local Government Area in Edo State, Nigeria

Sediments play a critical role in aquatic pollution studies, functioning both as sinks and potential secondary sources of contaminants. Over time, pollutants become embedded within sediment layers, serving as historical records of environmental pollution. This study assessed the physicochemical properties, pollutant levels and associated health risks in sediment from the Ajoki River, located in Ikpoba-Okha Local Government Area, Edo State, Nigeria. Samples were collected over a 12-month period, covering both the wet (May-October 2022) and dry (November 2022–April 2023) seasons.
AuthorName(s)
Okoro, D.
Akpojivi, V.O

Comparative Profiling and Bioaccumulation of PAHs in Soil and Talinum triangulare Harvested from Charcoal Production Areas in Southern Nigeria

This study investigated the comparative profiling and bioaccumulation of PAHs in soil and Talinum triangulare harvested from charcoal production areas in Southern Nigeria. T. triangulare was cultivated in three sites (1, 2 and 3) in a charcoal production environment for seven weeks.

AuthorName(s)
Osioma, Ejovi
Iniaghe, Paschal Okiroro

Effects of Senna alata Aqueous Extract on the Hematological and Biochemical Alterations in Rats Exposed to N-Nitroso-N-Ethyl Urea

Department of Cell Biology and Genetics, Faculty of Science, University of Lagos, Lagos, Nigeria

Physicochemical, Aromatic Hydrocarbon and Bacteriological Profiles of Human Urine-Impacted-Soils Obtained From Iyaro Motor Park, Benin City, Nigeria

Urine-impacted-soils were collected from different sampling points located within the vicinity of Iyaro Motor Park and analysed for physicochemical, aromatic hydrocarbon and bacteriological profiles. Standard analytical procedures which included serial dilution and pour plating, usage of appropriate meters, atomic absorption spectrophotometry and gas chromatography were employed in the evaluation of the bacteriological, physicochemical, heavy metal and poly aromatic hydrocarbon (PAH) profiles of the soils.

AuthorName(s)
E.E. Imarhiagbe*
O.N. Obayagbona
O.Q. Bello
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