In 2014, the Minnesota legislature established a rule required all iron mining and processing facilities to reduce their mercury emissions by 72% by 2025. As of December 30, …
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mercury cycling in NE Minnesota where an economically important iron-mining district ("taconite") operates within a region prized for its many fishing lakes. As is the case in most regions, …
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Sulfide Mining and Minnesota's Wild Rice Sulfate Standard Impact of Mining on Sulfate Levels in Minnesota ... Among the substances released by copper-nickel sulfide mining are: mercury air …
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DULUTH, Minn. (AP) — Federal authorities have proposed new regulations that would force the Minnesota and Michigan iron mining industry to slash its mercury emissions. …
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Mercury, which is used in a number of technological applications, most frequently makes its way into aquatic ecosystems like the St. Louis River via industrial processes. Mining …
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The U.S. Environmental Protection Agency has proposed a new rule that for the first time would require mining companies to limit mercury emissions from Minnesota's six …
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MiningMinnesota is a group of industry leaders who advocate for safe and responsible mining in Minnesota. We are committed to benefiting our communities and advancing a sustainable …
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No category Mercury and Mining in Minnesota
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The EPA's new regulations propose reducing the 800 lbs. of mercury the taconite processors in Minnesota and Michigan's Upper Peninsula produce each year by 462 lbs.
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WASHINGTON — The state's Indian tribes are panning the Environmental Protection Agency for failing to impose tougher restrictions on mercury emissions from taconite operations, saying they...
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From fish loaded with mercury to wild rice beds killed by an overdose of sulfates, the impact to the environment has been incalculable. As PolyMet's proposed copper mine, …
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Sulfide mining (specifically copper-nickel sulfide mining) represents a significant departure from Minnesota's iron mining tradition. Sulfide mining can produce acid waste and sulfates that …
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The EPA's new regulations propose reducing the 800 lbs. of mercury the taconite processors in Minnesota and Michigan's Upper Peninsula produce each year by 462 lbs.
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N2 - Sulfide mining (specifically copper-nickel sulfide mining) represents a significant departure from Minnesota's iron mining tradition. Sulfide mining can produce acid waste and sulfates that …
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Evaluation of a Low Corrosion Method to Increase Mercury Oxidation and Scrubber Capture. Minnesota Dept. of Nat. Resources. St. Paul, Minnesota: 66 p. Berndt, M. (2003). Mercury and …
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Mercury generally contaminates water by atmospheric deposition such as rain, snow, and dry particles. If not from environmental effects mercury can get in water sources …
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mercury processing, preparation of the ore for use in various products.. Mercury (Hg) has a unique combination of physical properties. Its low melting point (−38.87 °C [−38 °F]) and …
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Maccabee: Mercury, Mining in Minnesota, and Clean Water Act Protection: A R Published by Mitchell Hamline Open Access, 2010. 2010] CLEAN WATER ACT 1113 each successive level …
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Mining for Copper in Northern Minnesota. How the PolyMet and Twin Metals mines could affect Northern Minnesota Lakes and Streams
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Our plan to reduce mercury releases by 2025 is based on Minnesota's statewide mercury total maximum daily load (TMDL) study, which was approved by the Environmental Protection …
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Sulfur and carbon controls on methyl mercury in St. Louis River Estuary sediments Phase II. University of Minnesota Duluth Research Report. 48 p. Johnson, N. W. and Zhu, X., 2012 » …
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Average mercury concentration in NE Minnesota precipitation is higher than dissolved mercury in most streams and lakes, underscoring the importance of sedimentation and uptake by soils …
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The Minnesota Department of Health has issued fish consumption advisories for nearly 1650 lakes and rivers in Minnesota as a result of mercury contamination. How is our state addressing the problem and what …
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In 2011, the Minnesota Department of Health found that 1 in 10 infants in Minnesota's Lake Superior region are already born with unsafe levels of mercury in their blood. The PolyMet …
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The Hull-Rust Mahoning Mine, as seen on Feb. 9, 2016, from the overlook in Hibbing, Minnesota, is a working mine run by Hibbing Taconite Co. The U.S. Environmental …
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Gives the history of mining in northern Minnesota, leading up to the growth of the taconite industry. MNOpedia: United States of America v. Reserve Mining Company. ... Additionally, …
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Minnesota's taconite industry not on pace to meet state's mercury reduction targets by 2025 Plans submitted by mining companies show an industrywide reduction of 15% by 2025, far less than the ...
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This form of mercury easily works its way up the food chain, from plankton to game fish. At every step, the concentration increases, until it reaches dangerous levels in top …
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Northshore Mining is proposing a stationary source-wide mercury emission cap of 15.3 lb Hg/yr which represents a 72% total reduction from baseline emissions. • …
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