Document Detail


Detection of horse allergen around a stable.
MedLine Citation:
PMID:  18025788     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND: Integrating horse stables with built-up areas may lead to conflicts. Dispersion of horse allergen may become a health risk for allergic people. The aim was to measure the dispersion of horse allergen around a stable, considering wind speed and direction and vegetation. The disturbance of staff at a workplace nearby a stable was investigated. METHODS: Air sampling was performed around a stable (32 horses) at distances of 50-500 m in all directions. Sampling was done with a pump and an IOM sampler. Samples were collected at 50 points during all seasons. Horse allergen levels were determined using ELISA. Disturbance by horses was studied with a questionnaire handed to the employees in an office near the stable. RESULTS: The median horse allergen level at the stable entrance was 316 U/m(3), in the horse fields 40 U/m(3) and in the whole source area 16 U/m(3), which declined to <2 U/m(3) at about 50 m from the source area. Downwind of the prevailing winds low levels of horse allergen (2-4 U/m(3)) could sometimes be detected at up to 500 m. The staff, including those allergic to horses, managed to tolerate horses close to the workplace. CONCLUSIONS: At low winds horse allergen spread in ambient air about 50 m from the stable and horse fields. At higher winds low allergen levels were sometimes found in open areas up to 500 m from the source area. These levels were similar to those found in the office after moving away from the stable area. The employees did not report more symptoms of allergy or asthma while working close to the stable compared to after the move.
Authors:
Lena Elfman; Johan Brannstrom; Greta Smedje
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Validation Studies     Date:  2007-11-15
Journal Detail:
Title:  International archives of allergy and immunology     Volume:  145     ISSN:  1423-0097     ISO Abbreviation:  Int. Arch. Allergy Immunol.     Publication Date:  2008  
Date Detail:
Created Date:  2008-03-19     Completed Date:  2008-04-14     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9211652     Medline TA:  Int Arch Allergy Immunol     Country:  Switzerland    
Other Details:
Languages:  eng     Pagination:  269-76     Citation Subset:  IM    
Copyright Information:
2007 S. Karger AG, Basel
Affiliation:
Department of Medical Sciences, Occupational and Environmental Medicine, Uppsala University Hospital, Uppsala, Sweden. lena.elfman@medsci.uu.se
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MeSH Terms
Descriptor/Qualifier:
Adult
Air / analysis
Air Pollution, Indoor / analysis
Allergens / analysis*
Animals
Dust / analysis,  immunology
Enzyme-Linked Immunosorbent Assay / standards
Female
Horses / immunology*
Housing, Animal*
Humans
Male
Middle Aged
Occupational Exposure / analysis
Questionnaires
Respiratory Hypersensitivity / immunology
Seasons
Wind
Chemical
Reg. No./Substance:
0/Allergens; 0/Dust

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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