Health Concerns over Drugs in Manured Crops
US - Dolliver and co-workers at the University of Minnesota have measured the uptake by maize, lettuce and potatoes of sulphamethazine, an antibiotic used in animal production, which is passed into manure. Although the uptake of the drug by the plants was low, the researchers indicated 'potential human health concerns of consuming low levels of antibiotics from produce grown on manure-amended soils'.