coal mining selenium

  • Coal miner Teck says it's baffled by fish collapse ...

    Coal mining releases selenium, an element which in large amounts is toxic to wildlife and humans. Reports on selenium concentrations in area waterways have .

  • Risk management approach for Selenium and its compounds ...

    5.2.1 Coal mining. As of November, 2016, 8 coal mining facilities reported releases to the NPRI of 13 360 kg of selenium to water in 2014. These facilities also reported the on-site disposal of 28 802 kg of selenium; this data includes selenium contained in tailing products and coarse coal rejects (National Pollutant Release Inventory, 2014).

  • Stream pollution from mountaintop mining doesn't stay put ...

    Apr 07, 2020 · Since the 1980s, a sprawling mountaintop removal mining complex in southern West ia has been leaching pollutants—such as selenium—into nearby streams at .

  • Stream Pollution From Mountaintop Mining Doesn't Stay Put ...

    Apr 06, 2020 · DURHAM, N.C. -- Since the 1980s, a sprawling mountaintop removal mining complex in southern West ia has been leaching pollutants -- such as selenium -- into nearby streams at levels deemed unsafe for aquatic life. Now, even though the mine is closed, researchers have also found high concentrations of selenium in stream insects when they fly out of the water and the spiders that eat .

  • EPA says Canadian coal mines causing western Montana water ...

    Sep 24, 2019 · Selenium is a byproduct of coal mining that can, in large concentrations, become harmful to aquatic life. Nitrate compounds are often used .

  • Mining Regulations and Elk River Selenium Pollution - Elk ...

    The bad news: the new regulations have some serious loopholes — and they won't reduce selenium pollution in the Elk Valley until 2025 at the earliest. We need strong federal regulation for selenium pollution from coal mines as soon as possible, because the long-term selenium problem in the Elk Valley is getting worse every day.

  • Aquatic hazard of selenium pollution from. | Publications ...

    Authors: Lemly, Dennis A. Publication Year: 2009 Publication Series: Book Source: Book Chapter In: In: Fosdyke, Gerald B. ed. Coal Mining: Research, Technology and Safety. Abstract. Selenium is a chemical element that is found in coal in small amounts. The potential for environmental problems begins when coal-bearing strata are exposed to air and water during the mining process, and when coal ...

  • Is mining in headwaters worth the risk? - Medicine Hat ...

    Aug 15, 2020 · Toxic effects of selenium on aquatic life, fish and birds have been documented in the mountaintop coal-mining regions of the Appalachians and more recently the Elk Valley of B.C., extending up to ...

  • Selenium

    Safety of selenium. Selenium is an essential nutrient for human health. Most Canadians get the selenium they need from following a healthy eating pattern. We assessed the potential health and environmental risks of selenium through a chemical risk assessment. We found that fish caught near mining operations may have higher selenium levels.

  • Mines blamed for high selenium levels in B.C.'s Elk River ...

    Jul 26, 2013 · A U.S. study has linked coal mining in the Elk River in southeast British Columbia to high levels of selenium, and that has prompted the B.C. government to order the mining .

  • Elk Valley Coal Mines Selenium Pollution in BC, Canada ...

    The selenium comes from the Elk Valley Mines, which extract metallurgical coal necessary for the manufacturing of steel by applying a "cross-valley fill" technique [1]. The rock is first scraped from the surface of the mountainside after which the coal is separated from the rest of the material, which becomes waste [1].

  • From Canadian Coal Mines, Toxic Pollution That Knows No ...

    Apr 01, 2019 · The destructive consequences of selenium pollution are well documented in North America. In the 1970s, agricultural runoff carried high selenium loads into a reservoir in California's San Joaquin Valley, causing deformities in fish, reptiles, and birds. In the early 2000s, a vast mountaintop removal mining .

  • Mining Regulations and Elk River Selenium Pollution - Elk ...

    The bad news: the new regulations have some serious loopholes — and they won't reduce selenium pollution in the Elk Valley until 2025 at the earliest. We need strong federal regulation for selenium pollution from coal mines as soon as possible, because the long-term selenium problem in the Elk Valley is getting worse every day.

  • Selenium Archives > Page 2 of 4 > Appalachian Voices

    The U.S. Environmental Protection Agency is poised to loosen national recommended water quality standards for selenium, a toxic pollutant commonly released from mountaintop removal coal mines. You can stand up for streams in Appalachia by submitting comments urging the EPA to protect aquatic life and strengthen selenium standards.

  • Basic Information about Surface Coal Mining in Appalachia ...

    selenium concentrations are elevated, reaching concentrations that have caused toxic effects in fish and birds, and macroinvertebrate and fish communities are consistently degraded. In addition, mountaintop mining and valley fills can lead to large-scale landscape changes:

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  • Selenium - Wikipedia

    Selenium pollution of waterways also occurs when selenium is leached from coal flue ash, mining and metal smelting, crude oil processing, and landfill. The resultant high selenium levels in waterways were found to cause congenital disorders in oviparous species, including wetland birds [114] and fish. [115]

  • Crowsnest Pass at a crossroad

    Aug 06, 2020 · Selenium will settle in the sediment of the Oldman Reservoir, where it can remain dangerously high for decades after mining ends. ... With regard to the economics of open pit coal mining.

  • Linking Selenium Sources to Ecosystems: Mining

    Selenium release to the environment during coal burning for power generation can be direct during combustion or indirect from disposal of solid combustion waste (i.e., fly ash). Large-scale land disturbance is associated with mountaintop coal mining .

  • Coal mining and selenium - Werner Antweiler

    Coal mining and selenium Over the last years, concerns have been raised about high levels of selenium in the Elk River and Lake Koocanusa. The Elk Valley is located in the East Kootenay region .

  • Category Archive for "Selenium" | Coal Tattoo

    Selenium, a toxic element that causes reproductive failure and deformities in fish and other forms of aquatic life, is discharged from many surface coal-mining operations across Appalachia. At very high levels, selenium can pose a risk to human health, causing hair and fingernail loss, kidney and liver damage, and damage to the nervous and ...

  • Role of Nitrate in the Remobilization and Attenuation of ...

    Selenium (Se) and nitrogen (N) compounds represent of environmental constituents concern at coal mine operations in the cordillera of western CanadaSe is re. leased to the environment via the weathering of exposed rock surfaces associated with mine waste materials (e.g., waste rock, pit walls,coarse coal reject (CCR) and tailings). Conversely,

  • Coal mining, selenium, and the costs of toxic pollutants ...

    Jan 20, 2014 · It is of concern in B.C. because selenium is released into the environment by coal mining and it has already been detected in the Elk River in the southeast corner of the province, and .

    Author: Mark Hume
  • Is mining in headwaters worth the risk? - Medicine Hat ...

    Aug 15, 2020 · Toxic effects of selenium on aquatic life, fish and birds have been documented in the mountaintop coal-mining regions of the Appalachians and more recently the Elk Valley of B.C., .

  • Selenium: Mountaintop Removal Coal Mining's Toxic Legacy ...

    Apr 16, 2014 · Because valley fills remain in place even after all mining is complete, selenium treatment liability is a problem not only for active coal mines, but also for the owners of so-called "reclaimed" mines. The Sierra Club and its allies have now begun filing lawsuits seeking to compel corporate landowners -- which profited from leasing their land ...

  • Will new federal coal mining regulations stop Elk Valley ...

    Jan 13, 2018 · Selenium pollution coming from the Elk Valley coal mines is a major problem and polluted water is harming fish as far downstream as Koocanusa Reservoir. So why isn't government regulating selenium levels to protect fish, birds and all kinds of life that depend on clean water? The answer is complicated. The good news: federal regulation is coming.

  • Aquatic Life Criterion - Selenium | Water Quality Criteria ...

    Selenium can be released into water resources by natural sources via weathering and by anthropogenic sources, such as surface mining, coal-fired power plants, and irrigated agriculture. How does Selenium Affect Aquatic Life? Selenium is a nutritionally essential element for animals in small amounts, but toxic at higher concentrations.

  • Pressure increases for federal review of Teck's Castle ...

    Jul 23, 2020 · Selenium is a naturally occurring element that is essential to human health, but at high concentrations it can be toxic to fish, birds and amphibians. Teck operates four metallurgical coal .

  • Insects Carry Traces of Mountaintop Removal Mining ...

    Jul 21, 2020 · This study focused on the Mud River watershed in Lincoln County, West ia, which is downstream from the Hobet 21 coal mining complex that closed in 2015. The research found that biofilm contains 1,000 times the amount of selenium .

  • Will new federal coal mining regulations stop Elk Valley ...

    Jan 13, 2018 · Selenium pollution coming from the Elk Valley coal mines is a major problem and polluted water is harming fish as far downstream as Koocanusa Reservoir. So why isn't government regulating selenium levels to protect fish, birds and all kinds of life that depend on clean water? The answer is complicated. The good news: federal regulation is coming.

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  • Coal mine water - Canadian Mining JournalCanadian Mining ...

    The Selenium (VI) is much harder to remove, and is the primary threat to water quality in the coal mining industry today. Today's Treatment Technology According to Jacques Groenewald, Senior Geoscientist with Summit Environmental, Vancouver, one of the most effective ways to mitigate the effects of coal mining is to avoid creating the problem ...

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