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Airflow limitation and changes in pulmonary function among bleachery workers.

Authors
Mehta-AJ; Henneberger-PK; Toren-K; Olin-A-C
Source
Eur Respir J 2005 Jul; 26(1):133-139
NIOSHTIC No.
20027468
Abstract
This study investigated whether chronic airflow limitation and rapid decline in pulmonary function were associated with peak exposures to ozone and other irritant gases in pulp mills. Bleachery workers potentially exposed to irritant gassings (n = 178) from three Swedish pulp mills, and a comparison group of workers not exposed to irritant gassings (n = 54) from two paper mills, were studied. Baseline surveys occurred in 1995-1996, with follow-up surveys in 1998-1999. Participants performed spirometry and answered questions regarding ozone, chlorine dioxide (ClO2), and sulphur dioxide (SO2) gassings. From regression models controlling for potential confounders, declines in both the forced expiratory volume in one second (FEV1) (-24 mL·yr-1) and the forced vital capacity (FVC) (-19 mL·yr-1) were associated with ClO2/SO2 gassings. At follow-up, the prevalence of chronic airflow limitation (i.e. FEV1/FVC less than the lower limit of normal) was elevated for participants with only pre-baseline ozone gassings and with both pre-baseline and interval ozone gassings, after controlling for potential confounders. These findings suggest that obstructive effects among bleachery workers are associated with ozone gassings, and that adverse effects on spirometry might also accompany chlorine dioxide/sulphur dioxide gassings. Peak exposures to irritant gases in pulp mills should be prevented.
Keywords
Pulmonary-system-disorders; Pulmonary-function; Humans; Lung-function; Airway-resistance; Irritant-gases; Pulp-industry; Occupational-exposure; Respiratory-system-disorders; Paper-mills; Spirometry; Mathematical-models
Contact
National Institute for Occupational Safety and Health, Division of Respiratory Disease Studies, 1095 Willowdale Road, Morgantown, WV 26505
CODEN
ERJOEI
CAS No.
10028-15-6; 7446-09-5; 7782-50-5; 10049-04-4
Publication Date
20050701
Document Type
Journal Article
Email Address
pkh0@cdc.gov
Fiscal Year
2005
NTIS Accession No.
NTIS Price
Issue of Publication
1
ISSN
0903-1936
NIOSH Division
DRDS
Source Name
European Respiratory Journal
State
WV
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