Mexico
Research Article
Heavy Metals in Oat and Soil Treated with Lime-Stabilized Biosolids and Reclaimed Wastewater
Author(s): Juan P. Flores- Márgez, E. Jaramillo- López, Naomi W. Assadian, George D. Di Giovanni, Federico Pérez- Casio and Manoj K. ShuklaJuan P. Flores- Márgez, E. Jaramillo- López, Naomi W. Assadian, George D. Di Giovanni, Federico Pérez- Casio and Manoj K. Shukla
The potential risk of transfer of heavy metals from wastewater and biosolids to forage, livestock and ultimately to human is a serious issue. A field experiment was designed to assess the uptake of Cd, Cr, Ni and Pb from water and soil boat forage, and from oat forage to sheep tissues. Treatments consisted of application of lime-stabilized biosolids at the rates of 0, 25 and 50 Mg ha-1 dry weight basis along with a conventional rate of N fertilizer. Oat (Avena sativa L.) was planted in 300 m2plots irrigated with reclaimed wastewater and twenty sheep were grazed. Kidney, liver and muscle were analyzed for metals concentrations. Soils treated with biosolids had significant less soluble Cr and Pb, but higher total Cr concentration than the control. Soluble and exchangeable forms in soil were higher for Cd (32.3%) than for Cr, Ni and Pb (5.4, 3.2 and 3.5%). Nickel and Pb concentrations we.. Read More»
DOI:
10.4172/2161-0525.S6-001
Environmental & Analytical Toxicology received 6818 citations as per Google Scholar report