ILO Home
Go to the home page
Site map | Contact us Franšais | Espa˝ol

CISDOC database

Document ID (ISN)100594
CIS number 02-1933
ISSN - Serial title 1529-8663 - AIHA Journal
Year 2000
Convention or series no.
Author(s) Duchaine C., Grimard Y., Cormier Y.
Title Influence of building maintenance, environmental factors, and seasons on airborne contaminants of swine confinement buildings
Bibliographic information Jan.-Feb. 2000, Vol.61, No.1, p.56-63. Illus. 15 ref.
Abstract Eight pigpens were visited twice during winter and once during summer to measure the concentrations of biological and chemical contaminants. For each of the premises, the cleanliness, number of ventilators, air temperature, number of animals and building size were noted. Air samples were taken to measure relative humidity, CO2, ammonia, total dust, microbiological counts and endotoxin levels. Significant decreases in bacterial levels, dust, ammonia and CO2 were observed during summer sampling when compared with winter levels. Mould counts were positively correlated with dirtiness scores, while bacterial counts were negatively correlated with this parameter. Bacteria and endotoxins were correlated with the number of animals. Ambient gases (CO2 and ammonia) correlated with each other. Bacteria were the most important contaminant in swine confinement buildings, and endotoxin levels found were also very high.
Descriptors (primary) livestock rearing; airborne dust; seasonal variation; biological hazards; premises; ventilation; housekeeping; swine
Descriptors (secondary) air temperature; carbon dioxide; ammonia; determination in air; bacteria; bacterial toxins; moulds
Document type D - Periodical articles
Country / State or ProvinceCanada
Subject(s) Agriculture, fishing, animal husbandry
Broad subject area(s) Biological hazards
Browse category(ies) Livestock rearing
Biological hazards
Natural phenomena
Animal hazards