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Assessment of Mercury in Soils, Crops, Earthworms, and Water when Soil is Treated with Gypsum

Source Publication:ASA-CSSA-SSSA Annual Meeting Abstracts - Abstract October 31, 2010 http://www.ars.usda.gov/research/publications/publications.htm?SEQ_NO_115=256622
Primary Author:Dick, Kost, Chen, Desutter, Mitchell, Norton, Smeal, Torbert, Watts, Wolkowski
Institution:USDA - ARS
Research Site:National Soil Erosion Research Lab - Field Experiments
State:Alabama, Indiana, Ohio, New Mexico, North Dakota, Wisconsin
Date/Year:2010
Focus:Mercury
Category:Proceedings & Bulletins & Research Reports
Crop:Mixed (Grass-Legume), Alfalfa, Wheat Grain, Corn Grain, Soybean Foliage, Bermudagrass, Cottonseed
Download:Assessment_of_Mercury_Post_Gypsum.pdf (77.5 KB)
Reported Results:

Compared to the untreated control treatment, FGD gypsum increased Hg concentrations in earthworms by up to 40%, but none of the increases were statistically significant. If care is taken to remove as much mercury as possible during production of FGD gypsum, it seems mercury should not preclude the use of FGD gypsum as an agricultural amendment.

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