title: Antibiotics in dust originating from a pig-fattening farm: a new source of health hazard for farmers?
abstract: Pig-house dust originates from feed, bedding, feces, and the animals themselves. If the animals receive drugs such as antibiotics, residues of these substances may occur in manure, in the air, or on surfaces of the respective animal house. In a retrospective study, we investigated dust samples collected during two decades from the same piggery for the occurrence of various antibiotics. In 90% of these samples, we detected up to five different antibiotics, including tylosin, various tetracyclines, sulfamethazine, and chloramphenicol, in total amounts up to 12.5 mg/kg dust. High dust exposure in animal confinement buildings is believed to be a respiratory health hazard because of the high content of microorganisms, endotoxins, and allergens. Further risks may arise from the inhalation of dust contaminated with a cocktail of antibiotics. Apart from that, our data provide first evidence for a new route of entry for veterinary drugs in the environment.
authors.affiliation: Department of Food Toxicology, Animal Welfare and Behaviour of Farm Animals, School of Veterinary Medicine Hannover, Hannover, Germany. Gerd.Hamscher@tiho-hannover.de
authors.forename: Gerd
authors.initials: G
authors.lastname: Hamscher
authors.forename: Heike Theresia
authors.initials: HT
authors.lastname: Pawelzick
authors.forename: Silke
authors.initials: S
authors.lastname: Sczesny
authors.forename: Heinz
authors.initials: H
authors.lastname: Nau
authors.forename: Jörg
authors.initials: J
authors.lastname: Hartung
mesh_terms: D000822:Animal Husbandry; D000818:Animals; D000900:Anti-Bacterial Agents / Q000008:administration & dosage / Q000032:analysis* / Q000633:toxicity*; D004391:Dust; D004784:Environmental Monitoring; D006801:Humans; D019570:Inhalation Exposure; D016273:Occupational Exposure; D012189:Retrospective Studies; D013552:Swine
chemical_list: D000900:Anti-Bacterial Agents; D004391:Dust