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Journal of Environmental and Public Health
Volume 2012, Article ID 565690, 11 pages
Research Article

Human Impairment from Living near Confined Animal (Hog) Feeding Operations

1Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
2Neuro-Test, Inc., 3250 Mesaloa Lane, Pasadena, CA 91107, USA

Received 16 June 2011; Accepted 18 October 2011

Academic Editor: Gerry Schwalfenberg

Copyright © 2012 Kaye H. Kilburn. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Problem. To determine whether neighbors around manure lagoons and massive hog confinement buildings who complained of offensive odors and symptoms had impaired brain and lung functions. Method. We compared near hog manure neighbors of lagoons to people living beyond 3 kilometers in Ohio and to unexposed people controls in a nearby state for neurophysiological, cognitive, recall and memory functions, and pulmonary performance. Results. The 25 exposed subjects averaged 4.3 neurobehavioral abnormalities, significantly different from 2.5 for local controls and 2.3 for Tennessee controls. Exposed subjects mean forced vital capacity and expiratory volume in 1 sec were reduced significantly compared to local and regional controls. Conclusions. Near neighbors of hog enclosures and manure lagoon gases had impaired neurobehavioral functions and pulmonary functions and these effects extended to nearby people thought to be controls. Hydrogen sulfide must be abated because people living near lagoons cannot avoid rotten egg gas.