Respiratory effects of bioaerosols: Exposure-response study among salmon-processing workers

Objectives The aim of the study was to determine exposure–response relationships in salmon‐processing workers. Methods Cross‐shift FEV1, acute respiratory symptoms, and exposure to total protein, parvalbumin and endotoxin were main variables measured during one workweek. Exposure–response relationsh...

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Bibliographic Details
Published in:American journal of industrial medicine 2014-03, Vol.57 (3), p.276-285
Main Authors: Shiryaeva, Olga, Aasmoe, Lisbeth, Straume, Bjørn, Olsen, Ann-Helen, Øvrum, Arild, Kramvik, Eva, Larsen, Merethe, Renstrøm, Anne, Merritt, Anne-Sophie, Heldal, Kari Kulvik, Bang, Berit Elisabeth
Format: Article
Language:English
Subjects:
Adult
Aerosols
Animals
bioaerosols
Biological and medical sciences
Cough - epidemiology
Dyspnea - epidemiology
Endotoxins - toxicity
exposure-response
Female
Food Handling
Food-Processing Industry
Forced Expiratory Volume
Humans
Logistic Models
lung function
Male
Medical sciences
Medicin och hälsovetenskap
Middle Aged
Occupational Diseases - epidemiology
Occupational Exposure - statistics & numerical data
Occupational Health
Occupational medicine
Parvalbumins - toxicity
Pharyngitis - epidemiology
Proteins - toxicity
Public health. Hygiene-occupational medicine
Respiratory Function Tests
respiratory symptoms
Rhinitis - epidemiology
Salmon
Salmonidae
Sneezing
tolerance
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Summary:Objectives The aim of the study was to determine exposure–response relationships in salmon‐processing workers. Methods Cross‐shift FEV1, acute respiratory symptoms, and exposure to total protein, parvalbumin and endotoxin were main variables measured during one workweek. Exposure–response relationships were analyzed by Generalized Estimation Equations of cross‐week data and by multiple regressions of day‐to‐day data. Results Exposure levels were higher in those workers who reported use of water hose. GEE showed negative coefficients for interaction between TP exposure and time (days) on cross‐week change of FEV1. Multiple regressions showed significant associations between TP levels and cross‐shift change of FEV1 and symptoms (cough, chest tightness) only for Monday shifts. Conclusions A tolerance effect during the course of a workweek is suggested. Use of water hose is a risk process with regard to the liberation of measured components of bioaerosols. Am. J. Ind. Med. 57:276–285, 2014. © 2013 Wiley Periodicals, Inc.
ISSN:0271-3586
1097-0274
1097-0274
DOI:10.1002/ajim.22281