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Document ID (ISN)65197
CIS number 95-1886
ISSN - Serial title 0002-8894 - American Industrial Hygiene Association Journal
Year 1994
Convention or series no.
Author(s) Laitinen S., Kangas J., Kotimaa M., Liesivuori J., Martikainen P.J., Nevalainen A., Sarantila R., Husman K.
Title Workers' exposure to airborne bacteria and endotoxins at industrial wastewater treatment plants
Bibliographic information Nov. 1994, Vol.55, No.11, p.1055-1060. Illus. 20 ref.
Abstract A study of sewage workers' exposure to airborne culturable bacteria and inhaled endotoxins was performed at nine wastewater treatment plants that treat mainly industrial effluents. Concentrations of airborne endotoxin in different departments varied from below 0.01 to 250ng/m3, and the concentration of airborne bacteria varied from below 1 to 105 colony-forming units/m3. High levels of exposure were related to certain phases of the treatment process; microbiological air contamination was highest near the inlets where incoming wastewater entered the basins, in the sludge treatment area and in the biofilter tower. Measures for reducing exposure are suggested.
Descriptors (primary) Finland; bacteria; sewage treatment; exposure evaluation; biological hazards; bacterial toxins
Descriptors (secondary) air sampling; safety and health engineering
Document type D - Periodical articles
Country / State or ProvinceFinland
Subject(s) Toxic and dangerous substances
Broad subject area(s) Biological hazards
Browse category(ies) Biological hazards
Exposure evaluation