Nitrates in Wisconsin ground water.

Environmental Letters
B SchuknechtJ J Delfino

Abstract

Nitrate analyses were performed on ground water well samples originating from sources throughout Wisconsin. The data ranged from below the analytical detection limit up to 140 mg NO3-N/1. Over nine percent of all wells sampled has nitrate concentrations in excess of 10 mg NO3-N/1. Six individual counties had more than 10 mg NO3-N/1 in at least twenty percent of the wells covered in this survey. However, data reported for over eight thousand new wells driven in 1971-1972 showed only slightly more than two percent with nitrate levels above 10 mg NO3-N/1. This reflected the trend toward drilling deeper wells which are influenced less by nitrate seepage as well as adherence to new and stricter well construction codes.

References

Aug 1, 1951·American Journal of Public Health and the Nation's Health·G WALTON
Jan 23, 2008·Journal of Water and Health·Orapin ThapsingkaewVilailuck Kijjanapanich

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Citations

Mar 1, 1978·Archives of Environmental Health·E L BakerH G Skinner
Jan 1, 1996·Occupational Therapy in Health Care·J Painter

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