UW scientists map areas of historic lead, zinc contamination
The first year Kurt Menke planted soybeans in a 22-acre field at the edge of town, he noticed something odd: His crop came up healthy but then part of it in one particular area later died.

Menke’s mother brought the failure to the attention of Chris Baxter, a soil scientist at UW-Platteville. Baxter’s subsequent testing suggested zinc was present in the soil at an astonishingly high concentration. Instead of the 10 to 300 parts per million that would be considered normal, Menke’s soi had closer to 15,000 parts per million. That meant zinc made up 1.5 percent of the soil...

   ...more



- - Volume: 7 - WEEK: 44 Date: 10/28/2019 11:13:51 AM -