The Itai-Itai disease case is one of four major pollution-related lawsuits occurring in Japan after World War H. This paper, which is based on investigations of the pollution source, the Kamioka mine, considers (1) the history of the disturbances to the environment caused by the Kamioka mine; (2) the Itai-Itai disease suit; (3) the pollution nprevention measures and methods of the Kamioka mine ...

water has an important role in creating pollution problems in the mining regimes influencing the surrounding surface environment. the purpose of this study is to make an assessment of groundwater quality in an underground mine site in portugal with a view of determining the pollution potential of groundwater. in the corresponding surface area of this underground mine, intersections of fou...

Phosphate and environmental samples were collected from Abu Tartor phosphate mine and the surrounding region. The activity concentration of 226Ra (238U) series, 232Th series and 40K were measured using a gamma-ray spectrometer. The activities of uranium isotopes (238U, 235U and 234U) and 210Pb were measured using an alpha spectrometer and a low-background proportional gas counting system, respe...

In the present study, conditions for autotrophic and mixotrophic culture of Scenedesmus sp were established. Effluents from acidic coal mine drains used to study biomass carotenoid production, both under in relation effect different sources nitrogen: sodium nitrate, urea ammonium phosphate. Pollutant removal was determined, such as COD, TOC, heavy metals, ions total suspended solids. Batch cult...

Elevated inorganic phosphate (Pi) concentrations in pore water of amended tailings under direct revegetation may cause toxicity in some native woody species but not native forbs or herb species, all of which are key constituents in target native plant communities for phytostabilizing base metal mine tailings. As a result, Pi sorption capacity has been quantified by a conventional batch procedur...

Mineral processing, pyro- and hydrometallurgical processes of auriferous sulfide ores porphyry copper deposits (PCDs) generate arsenopyrite-rich wastes. These wastes are disposed into the tailings storage facilities (TSF) in which toxic arsenic (As) is leached out acid mine drainage (AMD) generated due to oxidation arsenopyrite (FeAsS). To suppress oxidation, this study investigated passivation...

The effect of in situ immobilization of lead (Pb) and arsenic (As) in soil with respectively phosphate and iron is well recognized. However, studies on combined Pb and As-contaminated soil are fewer, and assessment of the effectiveness of the immobilization on mobility and bioaccessibility is also necessary. In this study, a Pb and As-contaminated soil was collected from an abandoned lead/zinc ...

As part of a detailed experimental study of the pathogenicity of disease of slate dust workers, the early biochemical changes in rat lung from 1 to 90 days after intratracheal inoculation of slate dust of particle size below 5 micron were investigated. A severalfold increase in free cell population (initially macrophages) was elicited by the dust. The free activity of acid phosphatase tended to...