Arsenic in tree rings at a highly contaminated site

Arsenic in tree rings at a highly contaminated site.

Arsenic concentrations were measured in annual rings, pith, bark, and leaves of five tree species (four genera) from a site highly contaminated with As in Vineland, New Jersey, and two nearby uncontaminated areas. The highest As concentrations were found in bark (0.68+/-0.89 mg/kg, n=16) and leaves (1.9+/-1.8 mg/kg, n=4) from the contaminated area. Tree-ring As levels from the contaminated area...

Arsenic Uptake by Trees at a Highly Contaminated Site

Arsenic contaminated site at an abandoned copper smelter plant: waste characterization and solidification/stabilization treatment.

A preliminary survey of an arsenic contaminated site from an abandoned copper smelting facility and feasibility study of using solidification/stabilization (S/S) process to treat the contaminant waste were undertaken. It was found that the waste, located in the three-flue gas discharge tunnels, contained 2-40% arsenic. The pH of the contaminated waste is extremely low (ranging from 1.8 to 3.6)....

Applicability of a Freundlich-Like Model for Plant Uptake at an Industrial Contaminated Site with a High Variable Arsenic Concentration

Phytoextraction is a low-cost technology with negligible environmental impacts. A major issue at the field scale is the heterogeneity of contaminant concentration since the entire site needs to be treated evenly even though zones may need different incisiveness in the treatment. The concentration ratio (Cshoot/Csoil) is generally used to evaluate plant species performance and it includes for si...

Investigations of geoelectrical signatures at a hydrocarbon contaminated site

This study provides an evaluation of the utility and resolution of different geoelectrical methods in mapping contaminant distribution in the subsurface, and provides a window into the processes that may control their response at a site in Central Ž . Ž . Michigan. In situ and 2D surface resistivity, ground penetrating radar GPR , and electromagnetic methods EM constrained Ž . by soil boring da...