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

CISDOC database

Document ID (ISN)104998
CIS number 06-445
ISSN - Serial title 0271-3586 - American Journal of Industrial Medicine
Year 2005
Convention or series no.
Author(s) Smit L.A.M., Spaan S., Heederik D.
Title Endotoxin exposure and symptoms in wastewater treatment workers
Bibliographic information July 2005, Vol.48, No.1, p.30-39. 38 ref.
Abstract This study investigated endotoxin exposure and work-related symptoms in wastewater treatment workers. Questionnaire on data on symptoms was obtained from 468 employees in 67 sewage treatment plants and personal endotoxin exposure was measured in a sample of workers in three different periods during one year. Endotoxin exposure ranged from 0.6 to 2093 endotoxin units (EU)/m3, the geometric mean exposure being low (27EU/m3). Factor analysis yielded three clusters of correlated symptoms: lower respiratory and skin symptoms, flu-like and systemic symptoms, and upper respiratory symptoms. Symptoms appeared to be more prevalent in workers exposed to endotoxin levels higher than 50EU/m3. A significant dose-response relationship was found for lower respiratory and skin symptoms and for flu-like and systemic symptoms.
Descriptors (primary) Netherlands; bacterial toxins; sewage treatment; biological hazards; symptoms
Descriptors (secondary) influenza; subjective assessment; respiratory diseases; dose-response relationship; exposure evaluation; questionnaire survey; cross-sectional study; skin diseases
Document type D - Periodical articles
Country / State or ProvinceNetherlands
Subject(s) Toxic and dangerous substances
Broad subject area(s) Biological hazards
Occupational medicine, epidemiology
Browse category(ies) Influenza
Biological hazards
Bacterial and parasitic diseases
Viral diseases (other than aids)