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Nitrate Addition Pilot Test in the Hypolimnion of Onondaga Lake (2012)

The second year of a three-year nitrate addition pilot test in Onondaga Lake was completed successfully and met its objective: to demonstrate the ability to maintain nitrate concentrations in the hypolimnion (i.e., water deeper than 30 ft.) at levels sufficient to inhibit release of methylmercury from lake sediment to the overlying waters during stratification. As a result of adding nitrate, methylmercury concentrations measured in deep waters during 2012 were lower than during any prior year on record.

Report

Nitrate Addition Pilot Test in the Hypolimnion of Onondaga Lake, Report for the Second Year of the Study- September 2013 Part 1 (PDF)) (4.8 mB, 47 pages)

Nitrate Addition Pilot Test in the Hypolimnion of Onondaga Lake, Report for the Second Year of the Study- September 2013 Part 2 (PDF) (2.6 mB, 21 pages)


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