Environmental Health Perspectives
DOI of Published Version
Accurate monitors are required to determine ambient concentration levels of contaminants emanating from concentrated animal feeding operations (CAFOs), and accurate models are required to indicate the spatial variability of concentrations over regions affected by CAFOs. A thorough understanding of the spatial and temporal variability of concentration levels could then be associated with locations of healthy individuals or subjects with respiratory ailments to statistically link the presence of CAFOs to the prevalence of ill health effects in local populations. This workgroup report, which was part of the Conference on Environmental Health Impacts of Concentrated Animal Feeding Operations: Anticipating Hazards-Searching for Solutions, describes instrumentation currently available for assessing contaminant concentration levels in the vicinity of CAFOs and reviews plume dispersion models that may be used to estimate concentration levels spatially. Recommendations for further research with respect to ambient air monitoring include accurately determining long-term average concentrations for a region under the influence of CAFO emissions using a combination of instruments based on accuracy, cost, and sampling duration. In addition, development of instruments capable of accurately quantifying adsorbed gases and volatile organic compounds is needed. Further research with respect to plume dispersion models includes identifying and validating the most applicable model for use in predicting downwind concentrations from CAFOs. Additional data are needed to obtain reliable emission rates from CAFOs.
Air Pollutants, Animal Feed, Animal Husbandry, Animals, Environmental Exposure, Environmental Monitoring, Housing, Animal, Humans, Models, Chemical, Occupational Exposure, Odors, Particulate Matter, Sustainability
Published Article/Book Citation
The definitive version was published in Environmental Health Perspectives, 115:2 (2007) pp.303-307. DOI:10.1289/ehp.8838.
The article was published in Environmental Health Perspectives, http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1817704/pdf/ehp0115-000303.pdf. Author posting. Copyright © National Institute of Environmental Health Sciences, 2007. This is an Open Access article: verbatim copying and redistribution of this article are permitted in all media for any purpose, provided this notice is preserved along with the article's original DOI.