ILO Home
Go to the home page
Site map | Contact us Français | Español

CISDOC database

Document ID (ISN)106740
CIS number 07-720
ISSN - Serial title 1545-9624 - Journal of Occupational and Environmental Hygiene
Year 2006
Convention or series no.
Author(s) Veillette M., Cormier Y., Israël-Assayaq E., Mériaux A., Duchaine C.
Title Hypersensitivity pneumonitis in a hardwood processing plant related to heavy mold exposure
Bibliographic information June 2006, Vol.3, No.6, p.301-307. Illus. 13 ref.
Abstract Two workers employed in a hardwood floor plant presented symptoms of hypersensitivity pneumonitis (HP). At that plant, kiln-dried wood often showed mouldy growth and was subsequently brought inside for processing. This study evaluated the environment to identify the causative agent and to verify whether other workers of this and similar plants were at risk of developing HP. Dust from dust-removing systems and moulds on the surface of wood planks were collected and air samples taken from the plant under investigation and from a sister plant. Blood samples, spirometry measurements and symptoms' questionnaires were obtained from 11 co-workers. Dense Paecilomyces growth was observed on the surface of the dried processed wood in the plant under investigation, but not at the sister plant. An additional worker had symptoms suggestive of HP, and his bronchoalveolar lavage revealed a lymphocytic alveolitis. The three confirmed cases of HP and the other 10 workers had positive specific IgG antibodies to Paecilomyces.
Descriptors (primary) extrinsic allergic alveolitis; woodworking industry; hardwoods; moulds
Descriptors (secondary) case study; antibodies; symptoms; determination in blood; hypersensitivity; determination in air; questionnaire survey
Document type D - Periodical articles
Country / State or ProvinceCanada
Subject(s) Woodworking industry
Broad subject area(s) Biological hazards
Browse category(ies) Lumber and the woodworking industry
Pneumoconioses
Woodworking industry