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A large part of oil sands mining operations involves clearing trees and brush from a site and removing the overburden—topsoil, muskeg, sand, clay and gravel—that sits atop the oil sands deposit. [148] Approximately 2.5 tons of oil sands are needed to produce one barrel of oil (roughly 1 ⁄ 8 of a ton). [149]
(Reuters) -Canada will fund an Indigenous-led study into how oil sands development impacts the health of local communities, the government said on Wednesday, following a tailings water leak from ...
Asphaltite (also known as uintahite, asphaltum, gilsonite or oil sands [1]) is a naturally occurring soluble solid hydrocarbon, a form of asphalt [2] (or bitumen) with a relatively high melting temperature. Its large-scale production occurs in the Uintah Basin of Utah and Colorado, United States.
Heavy oil in the Peace River, produced from bitumen deposit is extracted using wells not by mining. [ 7 ] : 9 The oil sands of the Bluesky-Gething were deposited during the Cretaceous Period within a transgressive system, with the lower fluvial to nonmarine Gething Formation at the base and the estuarine Bluesky Formation at the top.
Natural toxicants derived from bitumen in Northern Alberta pose potential ecological and human health risks to people living in the area. Oil sands development contributes arsenic, cadmium, chromium, lead, mercury, nickel and other metal elements toxic at low concentrations to the tributaries and rivers of the Athabasca. [106]
Mine at the Athabasca Oil Sands. According to the Alberta Energy and Utilities Board (EUB, now known as the Alberta Energy Regulator, the AER), Alberta's oil sands areas contain an ultimately recoverable crude bitumen resource of 50 billion cubic metres (315 billion barrels), with remaining established reserves of almost 28 billion cubic metres (174 billion barrels) at year-end 2004.
Oil is "acutely lethal" to fish - that is, it kills fish quickly, at a concentration of 4000 parts per million [25] (0.4%). The toxicity of petroleum related products threaten human health. Many compounds found in oil are highly toxic and can cause cancer (carcinogenic) as well as other diseases. [23]
The global oil-shale industry began to revive at the beginning of the 21st century. In 2003, an oil-shale development program restarted in the United States. Authorities introduced a commercial leasing program permitting the extraction of oil shale and oil sands on federal lands in 2005, in accordance with the Energy Policy Act of 2005. [50] [51]