December 2012

Agama lizard: A potential biomarker of environmental heavy metal pollution assessment

  In this study, the suitability of Agama lizard as a biomarker in assessing environmental pollution levels of arsenium (As), barium (Ba), cadmium (Cd), copper (Cu), manganese (Mn), lead (Pb) and zinc (Zn) was investigated. Samples of top soil and agama lizards were taken from five sites within a university community in Nigeria for the study. Soil samples, livers and kidneys from the lizards were...

Author(s): J. A. O. Oyekunle, A. S. Adekunle, A. O. Ogunfowokan, M. S. Akanni and O. S. Coker

December 2012

Review and assessment of mechanic village potentials for small scale used engine oil recycling business

Mechanic village should be adapted in developing countries rather than the city-wide auto mechanic workshop practice. This is suggested because developing countries are yet to enforce environmentally friendly automobile workshops and mechanic practice. If all automobile repair works in different cities are confined to mechanic villages, collection, preservation, recycling and reuse of spent oil will become...

Author(s): Michael A. Nwachukwu, Jude Alinnor, and Huan Feng

December 2012

Effects of drying method, storage period and carbon: nitrogen ratio on inorganic nitrogen contents of Vertisols

  In order to monitor spatial inorganic N concentrations in soils over time, collected soil samples are composited and thoroughly mixed. The sticky characteristic of Vertisol when wet makes it difficult to thoroughly mix wet samples. There is the need for appropriate drying of Vertisol samples to facilitate thorough mixing and storage to retain mineral N content reflective of field status. We determined the...

Author(s): Nina D. O. and Sigunga D. O.