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Updated: May 5, 2026
Composition and Distribution Analysis of Bioaerosols Under Different Environmental Conditions
Published on: January 7, 2019
Respiratory effects of bioaerosols: exposure-response study among salmon-processing workers
Olga Shiryaeva1, Lisbeth Aasmoe, Bjørn Straume
1Faculty of Health Sciences, Department of Community Medicine, University of Tromsø, Tromsø, Norway; Department of Occupational and Environmental Medicine, University Hospital North Norway, Tromsø, Norway.
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.
