Environmental
A Minnesota property near Duluth contains iron ore tailings (taconite). What environmental concern is most associated with this material?
AMercury contamination in groundwater
BAsbestos-like fibers (tremolite) in air and water✓ Correct
CLead leaching into soil
DRadon gas from decomposition
Explanation
Taconite tailings in Minnesota's Iron Range contain tremolite, an asbestos-like mineral fiber. This has been a significant environmental and public health concern in the Duluth/Silver Bay area. Minnesota has conducted extensive studies on taconite exposure and health effects for Iron Range workers and residents.
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