mining minnesota mercury

Sulfide Mining and Human Health

2019-12-11 · 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 mobilize the release of heavy metals into the environment. These metals include known neurotoxins such as lead and mercury. Mining

Environmental Risks of Mining

2012-12-11 · Environmental hazards are present during every step of the open-pit mining process. Hardrock mining exposes rock that has lain unexposed for geological eras. When crushed, these rocks expose radioactive elements, …

Mercury Control for Taconite Stack Emissions | Minnesota …

2021-9-8 · Mercury and Mining in Minnesota - A Minerals Coordinating Committee Final Report. Minnesota Dept. of Nat. Resources. St. Paul, MN: 62 p. Berndt, M. (2008). On the measurement of stack emissions at taconite processing plants - a progress report submitted to MPCA. Minnesota Dept. of Nat. Resources. St.

Mercury, Mining in Minnesota, and Clean Water Act ...

2020-10-13 · 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 in the food chain so that mercury in predatory, freshwater fish at the top of the food chain is found almost exclusively

Northshore Mining Company

2012-10-4 · Northshore Mining Company has an active mercury reduction program that began under its previous ownership, Cyprus Northshore Mining, and that has improved since then. Northshore Mining supports the goals of the Minnesota Mercury Reduction Initiative and hereby submits its voluntary mercury reduction agreement, which is a formalization

Mercury and Mining in Minnesota

2004-12-18 · 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, mercury loading in NE Minnesota is dominated by atmospheric deposition. Most mercury deposited on land is revolatilized, but a

Mercury Pollution in the Boundary Waters Region of …

2018-10-29 · Maintained by the Minnesota state legislature as a brief history of metal mining in the state, and as a repository for reports, studies and impact statements. Read the top two sections ("Copper-Nickel Studies" and "History in Minnesota"), and skim through the list of reports to get a sense of the types of information that are available.

Preventing mercury pollution | Minnesota Pollution …

2012-12-11 · Environmental hazards are present during every step of the open-pit mining process. Hardrock mining exposes rock that has lain unexposed for geological eras. When crushed, these rocks expose radioactive elements, …

PolyMet Mine: Mercury & Health Risks

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 mine, plant, and waste facilities would discharge sulfate to …

Study: Most mercury in Lake Superior ...

2016-1-15 · Minnesota officials for years have been working to remove mercury from land-based sources such as batteries, switches, thermostats and dental fillings. The state also has moved to reduce coal-burning power plant contributions and is helping to develop new ways to reduce mercury from taconite processing.

MPCA to EPA: It''s time to set mercury limits on the ...

2020-9-29 · The Minnesota Pollution Control Agency has asked the U.S. Environmental Protection Agency to set mercury standards on the taconite industry, something the federal agency has avoided for 30 years.

Mercury Reduction Plan Submittal (Ferrous Mining ...

2019-6-13 · Minnesota Pollution Control Agency 520 Lafayette Road North St. Paul, MN 55155-4194 Subject: Northshore Mining Company Mercury Reduction Plan Dear Mr. Bouchareb: Attached with this electronic submittal is Northshore Mining Company''s Mercury Reduction Plan Submittal (Ferrous Mining/Processing) ...

Minnesota Pollution Mercury Reduction Plan Submittal ...

2020-8-13 · Minnesota Pollution Control Agency Mercury Reduction Plan Submittal (Ferrous Mining/ Processing) 520 Lafayette Road North St. Paul, MN 55155-4194 Instructions: Air Quality Permit Program Minn. R. 7007.0502, subp. 3 Doc Type: Regulated Party Response

Mercury and Mining in Minnesota

Preventing mercury pollution | Minnesota Pollution Control ...