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Manganese: No longer just for steel • Core Group

Manganese: No longer just for steel • Core Group

 · The U.S. EPA has set its coal operation total effluent limit at 4 mg/L per day and a 2 mg/L average daily value for 30 consecutive days. In reviewing its state’s limits on effluent, the Pennsylvania Department of Environmental Protection reviewed 78 studies on the contaminant before determining the need for a

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