Potentially Toxic Metals in Historic Landfill Sites: Implications for Grazing Animals

The accumulation of potentially-toxic metals by grazing ruminants.

The main factors affecting the accumulation of potentially-toxic metals (PTM) by grazing animals are the presence of the metal, its concentration in herbage and at the soil surface, and the duration of exposure to the contaminated pasture and soil. In addition, the elapsed time between the contamination of the pasture and grazing, the quantity of soil ingested together with herbage, the mechani...

Detection of potentially toxic metals by SERS using salen complexes.

Surfaced enhanced Raman scattering (SERS) can discriminate between metal complexes due to the characteristic "spectral fingerprints" obtained. As a result, SERS has the potential to develop relatively simple and sensitive methods of detecting and quantifying a range of metal ions in solution. This could be beneficial for the environmental monitoring of potentially toxic metals (PTMs). Here, sal...

Characterization of Landfill Sites in Brazil for Landfill Gas Recovery

Microbiology of Landfill Sites

The deposition of untreated municipal solid waste (MSW) in landfills exhibits a strong impact on our environment. The main effects are methane release, which is contributing to the greenhouse effect, and contamination of groundwater through leachate. The decomposition of MSW is mediated by the cooperation of several microorganisms and is heavily influenced by substrate composition as well as ph...

Heavy metals in blood and milk of grazing animals around the vicinity of Zanjan zinc industrial park

Background and Objective: Environmental pollution with heavy metals and consequently their entry into food chains leads to irreparable damage to human health. The aim of this study was to determine the concentration of heavy metals including copper, zinc, lead and cadmium in blood and milk of grazing livestock around Zinc industry in Zanjan province (VSIPZ). Materials and Methods: A total of 1...