Abstract:
BACKGROUND:An investigation of a small private agate mill was prompted by an agate worker who presented with silicosis in Guangzhou, China, in December 1998. METHODS:The work processes and records of dust measurements of the mill were examined. The mean total dust concentrations ranged from 3.0 to 9.9 mg/m3; 86-88% of the particles' diameter was smaller than 5.0 microm. Free SiO2 content from agate samples was measured. Occupational history was obtained and X-ray chest and lung function was carried out. RESULTS:Free SiO2 content of the agate was 90.5%. Thirty-two men involved in processing agate stone were examined. The mean ( +/- SD) age was 29.8 ( +/- 4.9) years and the mean (+/- SD) duration of exposure was 3.5 (+/- 1.7) years. Fifteen cases (47%) were diagnosed as accelerated silicosis. Up to September 1999, three had died from respiratory failure and five were in critical condition. CONCLUSIONS:Silicosis is an important problem in primitive work environments.
journal_name
Am J Ind Medjournal_title
American journal of industrial medicineauthors
Jiang CQ,Xiao LW,Lam TH,Xie NW,Zhu CQdoi
10.1002/ajim.1074subject
Has Abstractpub_date
2001-07-01 00:00:00pages
87-91issue
1eissn
0271-3586issn
1097-0274pii
10.1002/ajim.1074journal_volume
40pub_type
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journal_title:American journal of industrial medicine
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更新日期:2018-01-01 00:00:00