By William Crum Staff Writer wcrum@oklahoman.comBeginning in November, Paula Yockel's elementary-age son saw his pediatrician for bronchitis, fever, pinkeye, sore throat, headache, diarrhea, abdominal pain and other ailments. Yockel believes the illnesses are caused by substances in sludge produced at wastewater treatment plants and spread as fertilizer on farm fields near the family's home in far northeast Oklahoma City. She said she confirmed it in part by collecting evidence that tracked the path of pathogens such as adenovirus as they were spread by wind blowing over fields treated with sludge. Tuesday, she asked the city council to do something about it. "It's in our home, it's in the air near our home, and it's in the sludge," she said. The Yockels live on rural property off E Hefner Road.Read more on NewsOK.com