November 2012

Assessment of physicochemical qualities, heavy metal concentrations and bacterial pathogens in Shanomi Creek in the Niger Delta, Nigeria

  The physicochemical and microbial qualities of Shanomi creeks in the Niger Delta of Nigeria were assessed between January and October 2011. The temperature across sampling stations ranged between 26 and 27.7°C, while pH varied from 7.49 to 8.74. Turbidity ranged from 176.62-189.96 NTU and conductivity varied between 360.45 and 454.88 µS/cm. The concentrations of other physicochemical parameters were...

Author(s): Igbinosa E. O., Uyi O. O., Odjadjare E. E., Ajuzie C. U., Orhue P. O. and Adewole E. M.

November 2012

Combined uses of water-table fluctuation (WTF), chloride mass balance (CMB) and environmental isotopes methods to investigate groundwater recharge in the Thiaroye sandy aquifer (Dakar, Senegal)

The quaternary sandy sediments which cover most part of the Cap Vert peninsula bear considerable groundwater resources. The aquifer lying beneath a densely populated suburb zone is encountered with major issues such as induced recharge from anthropogenic surface derived pollution and rising water table to ground surface. The present study was aimed at investigating the recharge in the unconfined aquifer of Thiaroye zone...

Author(s): Ousmane Coly Diouf, Seynabou Cissé Faye, Mathias Diedhiou, Mariama Kaba, Sérigne Faye, Cheikh Bécaye Gaye, Abdoulaye Faye, Andreas Englert and Stefan Wohnlich

November 2012

Toxicity assessment of treated effluents from a textile industry in Lagos, Nigeria

  Water pollution caused by industrial effluent discharges has become a worrisome phenomenon due to its impact on environmental health and safety. Textile industries contribute immensely to surface water deterioration and are categorized among the most polluting in all industrial sectors. For this reason, the toxicity of treated textile effluent was assessed in Celossia argentea by exposing them to...

Author(s): Odjegba V. J. and Bamgbose N. M.

November 2012

Effect of stem - bark of Erythrophleum suaveolens (Guill. & Perri.) saponin on fresh water snail (Lanistes lybicus) tissues

  The study investigated the activity of saponin from ethanolic extract of Erythrophleum suaveolens stem bark against freshwater snail, Lanistes lybicus. The crude saponin (4 g) was separated by silica gel using gradient elution with dichloromethane in methanol (100:0 to 0:100) followed by thin layer chromatography using precoated silica gel 60 F254. Fractionated saponins(90:10, 80:20 and 70:30)...

Author(s): Akinpelu, B. A., Dare C. A., Adebesin F. I., Iwalewa E. O. and Oyedapo O. O.

November 2012

Condition, use, and management of water resources among pastoralists in Harshin District of the Jijiga Zone, Ethiopia: A gender perspective

  A study was conducted in Harshin district, Ethiopia to monitor the condition, use and management of water resources among Harshin pastoralists. For the study, three sub-districts (Kebles), Harshin, Medeweyin and Lanqerta, were selected. Both quantitative and qualitative data were collected using household surveys, key informant interviews and focus group discussions. The study found that water supply in...

Author(s): Melat Gezahegn Gebresenbet  and Zinabu Tebeje Zewdu