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Title: Respiratory effects of occupational exposures in a milk powder factory
Authors: P. Sripaiboonkij
W. Phanprasit
M. S. Jaakkola
University of Birmingham
Mahidol University
Oulun Yliopisto
Keywords: Medicine
Issue Date: 1-Apr-2008
Citation: European Respiratory Journal. Vol.31, No.4 (2008), 807-814
Abstract: Ingestion of milk powder is a known cause of allergies in children, but the risks to respiratory health from exposure to inhaled milk powder have not been studied previously. The aim of the present study was to assess the effects of occupational exposures in a milk powder factory on respiratory symptoms and lung function. A cross-sectional study was conducted on 167 milk powder factory workers (response rate 77%) and 76 office workers (73%) from four factories in Thailand. All participants answered a questionnaire and performed spirometry. Measurements of concentrations of dust were used to give additional information on exposures. Mean respirable dust concentrations in the factory were 0.02-2.18 mg·m-3. The risk of breathlessness and nasal symptoms were significantly increased in production and packing staff. The risk of skin symptoms was significantly increased in those adding vitamin mixture to milk powder. Factory workers showed significantly lower forced expiratory volume in one second measured as percentage of predicted value. The present study provides new evidence that workers exposed to milk powder by inhalation are at an increased risk of nasal symptoms, wheezing and breathlessness, and exhibit reduced spirometric lung function, even at relatively low air concentrations of milk dust. Copyright©ERS Journals Ltd 2008.
ISSN: 13993003
Appears in Collections:Scopus 2006-2010

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