African Journal of
Environmental Science and Technology

  • Abbreviation: Afr. J. Environ. Sci. Technol.
  • Language: English
  • ISSN: 1996-0786
  • DOI: 10.5897/AJEST
  • Start Year: 2007
  • Published Articles: 1014

Table of Content: January 2019; 13(1)

January 2019

Biodegradation of pyrene by a mixed culture isolated from hydrocarbon-polluted soil

This paper presents the biodegradation of pyrene (C16H10), a four-benzene-ring polycyclic aromatic hydrocarbon (PAHs) using a mixed culture of bacteria. The mixed culture was enriched from hydrocarbon-polluted soil sample, using a plate incubated with a thin film of pyrene. The isolates were identified biochemically as Bacillus cereus and Enterobacter aerogenes. The mixed culture bacteria degraded approximately 90% of...

Author(s): Baba Shehu Umar Ibn Abubakar, Norhafizah Abdullah, Azni Idris, Mohamad Pauzi Zakaria and Mohd Yunus Shokur  

January 2019

An assessment of total petroleum hydrocarbon and trace metal concentration in the sediments of Ugbo water way, South western Nigeria

Sediment samples from Ugbo water way, South Western Nigeria were assessed for total petroleum hydrocarbon (TPH) and trace metal concentrations. Seven sampling stations were selected and one control station. Total petroleum hydrocarbon (TPH) in the sediment samples was determined using Gas Chromatography-Flame Ionisation Detector (GC-FID) while trace metal concentrations were determined with Atomic Absorption...

Author(s): Ashiru O. R., and Ogundare M. O.,  

January 2019

Sustainability of Chiredzi town water supply and wastewater management in Zimbabwe

Urban water supply and sewage coverage in Zimbabwe is currently estimated at 78 and 73%, respectively with unserved population relying on boreholes and pit latrines. However, no study has been conducted to assess how small towns, such as Chiredzi, are sustaining their systems despite limited funding from the Government. A study was carried out to assess the sustainability of Chiredzi town water supply and wastewater...

Author(s): F. Homerai, A. W. Mayo and Z. Hoko  

January 2019

Exploratory study of Polycyclic Aromatic Hydrocarbon (PAH) contributions to household air pollution arising from improved cookstove use in rural Malawi

Around three million premature deaths annually are ascribed to household air pollution (HAP) arising from inefficient burning of biomass and emissions of products of incomplete combustion. The developing-world response has been widespread adoption of improved cookstove (ICS) technologies. This exploratory study evaluates variation in polycyclic aromatic hydrocarbon (PAH) attached to inhalable particulate matter (PM) in...

Author(s): Kondwani R. Chidziwisano, Michael O. Rivett, Amornphat Tadsanaprasittipol, Laura A. McGregor, and Robert M. Kalin  

January 2019

Understanding nexuses between precipitation changes and climate change and variability in semi-arid lowlands of Mwanga District, Tanzania

Contextually, precipitation fluctuated due to climate variability and evolved due to emissions of anthropogenic greenhouse gases and land-use changes since the industrial revolution in the 1880s. However, some studies problematize that there is little understanding of nexuses between precipitation changes and climate change and variability in tropical Africa. Therefore, this paper sought to assess such linkages in...

Author(s): Bagambilana Francis Rweyemamu and Rugumamu William Mulokozi