Environmental & Analytical Toxicology

Samson Tesfaye

Publications

• Research Article
  Evaluation of Surface Water Quality Impacted by Sewage Overflows from Animal and Residential Lagoon Systems using Principal Component Analysis
  Author(s): Abua Ikem, Bob Broz, Jimmie Garth, Samson Tesfaye and Lin Chung- HoAbua Ikem, Bob Broz, Jimmie Garth, Samson Tesfaye and Lin Chung- Ho
  
  This study was conducted to: (1) evaluate the water quality of Gans Creek (Missouri, United States), (2) assess the physical and chemical characteristics of two sewage lagoon overflows (confined animal lot lagoon overflow: CALLO, and domestic sewage lagoon overflow: DSLO) discharged into Gans Creek, and (3) understand the most significant analytical variables and major controlling processes influencing Gans Creek water quality using principal component analysis (PCA). Monthly (May 2009-February 2010) sampling was conducted along Gans Creek and at lagoon overflow points. Ammonia-nitrogen (NH3-N) in Gans Creek and the overflows was monitored for another year (March 2010-July 2011) because of its potential toxicity to stream health. Thirty-one variables including pH, electrical conductivity (EC), elemental and anionic species, total nitrogen (TN) and total organic carbon (TOC) were measu.. Read More»
  DOI: 10.4172/2161-0525.1000197

  Abstract PDF