September 2013

Seasonal variations in airborne heavy metals in Vanderbijlpark, South Africa

  In this study, monthly settleable dust samples were collected in four seasons using the modified crude single open bucket units at five sites within the Vanderbijlpark area. The samples were captured in distilled water medium, filtered, air-dried, weighed to determine mass concentrations, digested with aqua regia acid solution and analyzed for heavy metals by inductively coupled plasma (ICP) 6000...

Author(s):   S. J. Moja and J. S. Mnisi        

September 2013

Comparative study of the acute toxicity of petroleum sludge on fresh and brackish water shrimp

  The ecological impact of petroleum sludge on fresh water shrimp (Desmoscaris trispinosa) and brackish water shrimp (Palaemonetes africanus) in the Niger Delta area was compared using the Organization of Economic Co-operation and Development (OECD) No. 218 protocol for sediment toxicity test. The shrimp were exposed to sediments treated with petroleum sludge at concentrations of 625, 1250,...

Author(s):   Tudararo-aherobo L. E., Atuanya E. I., Olomukoro J. O. and Ogeleka D. F.      

September 2013

Organochlorine pesticide residue levels in river water and sediment from cocoa-producing areas of Ondo State central senatorial district, Nigeria

  The health risks posed by organochlorine compounds to the total environment have continued to elicit concern among researchers worldwide. Hence, this study focused on investigating the varieties and concentrations of organochlorine pesticide residues in river water and sediments from cocoa-producing areas in Ondo Central Senatorial District of Nigeria. The organochlorine pesticides extracted with a mixture of...

Author(s):   Idowu G. A., Aiyesanmi A. F. and Owolabi B. J.