Exposure to peat dust: acute effects on lung function and content of bronchoalveolar lavage fluid.
Mechanised production of peat for fuel consumption is associated with high concentrations of organic dust, which is inhaled by the peat workers. In the present study 17 workers at two peat bogs in northern Sweden were examined. Personal sampling of total dust and the respirable fraction was performe...
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1991
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fthighwire:oai:open-archive.highwire.org:oemed:48/11/771 2023-05-15T17:44:50+02:00 Exposure to peat dust: acute effects on lung function and content of bronchoalveolar lavage fluid. Sandström, T Kolmodin-Hedman, B Ledin, M C Bjermer, L Hörnqvist-Bylund, S Stjernberg, N 1991-11-01 00:00:00.0 text/html http://oem.bmj.com/cgi/content/short/48/11/771 https://doi.org/10.1136/oem.48.11.771 en eng BMJ Publishing Group Ltd http://oem.bmj.com/cgi/content/short/48/11/771 http://dx.doi.org/10.1136/oem.48.11.771 Copyright (C) 1991, BMJ Publishing Group Ltd Research Article TEXT 1991 fthighwire https://doi.org/10.1136/oem.48.11.771 2015-03-01T00:00:26Z Mechanised production of peat for fuel consumption is associated with high concentrations of organic dust, which is inhaled by the peat workers. In the present study 17 workers at two peat bogs in northern Sweden were examined. Personal sampling of total dust and the respirable fraction was performed during several workshifts. Dynamic spirometry was carried out before and at the end of shifts. Bronchoscopy with bronchoalveolar lavage (BAL) was performed in six subjects at the end of the working season and the results were compared with unexposed reference subjects. Peat workers using modern machines with ventilated cabins containing air filters were found to be exposed to low concentrations of peat dust. The recorded dust concentrations were below the threshold limit value for organic dust (5 mg/m3 air) in all but one worker. The respirable fraction of peat dust recorded in the breathing zone of the workers correlated significantly with a decrease in forced expiratory volume in one second (FEV1). The effect on lung function in non-asthmatic peat workers was, however, small. The concentration of lysozyme positive alveolar macrophages in BAL fluid was significantly lower in the peat workers compared with reference subjects. An inverse correlation was found between the mentioned cells and exposure to the respirable fraction of the peat dust. Furthermore, one particularly dust exposed worker had pronounced increases in alveolar macrophages, fibronectin concentration, and mast cells in BAL fluid. Text Northern Sweden HighWire Press (Stanford University) Occupational and Environmental Medicine 48 11 771 775 |
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HighWire Press (Stanford University) |
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English |
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Research Article |
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Research Article Sandström, T Kolmodin-Hedman, B Ledin, M C Bjermer, L Hörnqvist-Bylund, S Stjernberg, N Exposure to peat dust: acute effects on lung function and content of bronchoalveolar lavage fluid. |
topic_facet |
Research Article |
description |
Mechanised production of peat for fuel consumption is associated with high concentrations of organic dust, which is inhaled by the peat workers. In the present study 17 workers at two peat bogs in northern Sweden were examined. Personal sampling of total dust and the respirable fraction was performed during several workshifts. Dynamic spirometry was carried out before and at the end of shifts. Bronchoscopy with bronchoalveolar lavage (BAL) was performed in six subjects at the end of the working season and the results were compared with unexposed reference subjects. Peat workers using modern machines with ventilated cabins containing air filters were found to be exposed to low concentrations of peat dust. The recorded dust concentrations were below the threshold limit value for organic dust (5 mg/m3 air) in all but one worker. The respirable fraction of peat dust recorded in the breathing zone of the workers correlated significantly with a decrease in forced expiratory volume in one second (FEV1). The effect on lung function in non-asthmatic peat workers was, however, small. The concentration of lysozyme positive alveolar macrophages in BAL fluid was significantly lower in the peat workers compared with reference subjects. An inverse correlation was found between the mentioned cells and exposure to the respirable fraction of the peat dust. Furthermore, one particularly dust exposed worker had pronounced increases in alveolar macrophages, fibronectin concentration, and mast cells in BAL fluid. |
format |
Text |
author |
Sandström, T Kolmodin-Hedman, B Ledin, M C Bjermer, L Hörnqvist-Bylund, S Stjernberg, N |
author_facet |
Sandström, T Kolmodin-Hedman, B Ledin, M C Bjermer, L Hörnqvist-Bylund, S Stjernberg, N |
author_sort |
Sandström, T |
title |
Exposure to peat dust: acute effects on lung function and content of bronchoalveolar lavage fluid. |
title_short |
Exposure to peat dust: acute effects on lung function and content of bronchoalveolar lavage fluid. |
title_full |
Exposure to peat dust: acute effects on lung function and content of bronchoalveolar lavage fluid. |
title_fullStr |
Exposure to peat dust: acute effects on lung function and content of bronchoalveolar lavage fluid. |
title_full_unstemmed |
Exposure to peat dust: acute effects on lung function and content of bronchoalveolar lavage fluid. |
title_sort |
exposure to peat dust: acute effects on lung function and content of bronchoalveolar lavage fluid. |
publisher |
BMJ Publishing Group Ltd |
publishDate |
1991 |
url |
http://oem.bmj.com/cgi/content/short/48/11/771 https://doi.org/10.1136/oem.48.11.771 |
genre |
Northern Sweden |
genre_facet |
Northern Sweden |
op_relation |
http://oem.bmj.com/cgi/content/short/48/11/771 http://dx.doi.org/10.1136/oem.48.11.771 |
op_rights |
Copyright (C) 1991, BMJ Publishing Group Ltd |
op_doi |
https://doi.org/10.1136/oem.48.11.771 |
container_title |
Occupational and Environmental Medicine |
container_volume |
48 |
container_issue |
11 |
container_start_page |
771 |
op_container_end_page |
775 |
_version_ |
1766147119874310144 |