• Athabasca oil sands Wikipedia

    The Athabasca oil sands (or tar sands) are large deposits of bitumen or extremely heavy crude oil, located in northeastern Alberta, Canada roughly centred on the boomtown of Fort McMurray.These oil sands, hosted primarily in the McMurray Formation, consist of a mixture of crude bitumen (a semi solid rock like form of crude oil), silica sand, clay minerals, and water.

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  • Arsenic removal from water/wastewater using

    Most remediation methods discussed more effectively remove arsenic from water containing high initial arsenic concentrations (usually >100 mg/L) but residual arsenic concentrations exceed the 0.05 mg/L water quality standard used in most countries.Conventional and non conventional treatment technologies for aqueous arsenic remediation were compared .

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  • ARSENIC AND ARSENIC COMPOUNDS (EHC 224, 2001)

    This report contains the collective views of international groups of experts and does not necessarily represent the decisions or the stated policy of the United Nations Environment Programme, the International Labour Organization, or the World Health Organization.

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  • Thallium (EHC 182, 1996)

    INTERNATIONAL PROGRAMME ON CHEMICAL SAFETY ENVIRONMENTAL HEALTH CRITERIA 182 THALLIUM This report contains the collective views of an international group of experts and does not necessarily represent the decisions or the stated policy of the United Nations Environment Programme, the International Labour Organisation, or the World Health Organization.

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