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Document ID (ISN)112439
CIS number 12-0238
ISSN - Serial title 1076-2752 - Journal of Occupational and Environmental Medicine
Year 2011
Convention or series no.
Author(s) Deubner D.C., Sabey P., Huang W., Fernandez D., Rudd A., Johnson W.P., Storrs J., Larson R.
Title Solubility and chemistry of materials encountered by beryllium mine and ore extraction workers - Relation to risk
Bibliographic information Oct. 2011, Vol.53, No.10, p.1187-1193. Illus. 22 ref.
Internet access Solubility_and_chemistry_[BUY_THIS_ARTICLE] [in English]
Abstract Beryllium mine and ore extraction mill workers have low rates of beryllium sensitization and chronic beryllium disease relative to the level of beryllium exposure. The objective of this study was to relate these rates to the solubility and composition of the mine and mill materials. Medical surveillance and exposure data were summarized. Dissolution of beryllium oxide (BeO), ore materials and beryllium hydroxide (Be(OH)2) was measured in synthetic lung fluid. The ore materials were more soluble than BeO at pH 7.2 and similar at pH 4.5. Be(OH)2 was more soluble than BeO at both pH levels. Aluminium was also found to be dissolved along with beryllium from ore materials. The Higher solubility of beryllium ore materials and Be(OH)2at pH 7.2 might shorten particle longevity in the lung. The aluminum content of the ore materials might inhibit the cellular immune response to beryllium.
Descriptors (primary) USA; beryllium and compounds; berylliosis; exposure evaluation; mining industry
Descriptors (secondary) breathing atmosphere; beryllium hydroxide; beryllium oxide; aluminium and compounds; silicon and compounds; sampling and analysis; determination in air
Document type D - Periodical articles
Subject(s) Mines and quarries
Toxic and dangerous substances
Broad subject area(s) Chemical safety
Browse category(ies) Mining and quarrying
Exposure evaluation