Food safety aspects of sewage sludge.
D000383:Agriculture; D002104:Cadmium / Q000032:analysis; D003300:Copper / Q000032:analysis; D005506:Food Contamination; D007854:Lead / Q000032:analysis; D008670:Metals / Q000032:analysis*; D012722:Sewage / Q000032:analysis*
D008670:Metals; D012722:Sewage; D002104:Cadmium; D007854:Lead; D003300:Copper