Radioactivity released from phosphate-containing fertilizers and from gypsum

Abstract

Large amounts of uranium, radium and radium decay products are redistributed throughout the environment due to the use of phosphate fertilizers. Potential radiological impacts resulting from direct exposure, surface run-off, inhalation and ingestion of foods grown with fertilizers are discussed. Also, waste gypsum piles, a by-product of fertilizer production, are a significant source of radon emissions to air.