Anna Proctor acknowledges there’s an “ick” factor to the samples she’ll be collecting for a University of Iowa study later this year: Toenails from Iowa farmers. But Proctor and other UI researchers say the nail clippings will help assess farmers’ exposure to arsenic, pesticides and other chemicals. It's information farmers would welcome, said Aaron Lehman, a central Iowa farmer and president of the Iowa Farmers Union board. "A lot of farmers have a long history of mixing chemicals on their farm and applying them," he said. "I think all of us wonder what the danger was. ... And I don't think we know." Tap the link in our bio for more on this story. #Iowa #farming #pesticides