|Document ID (ISN)||112439|
|ISSN - Serial title
||1076-2752 - Journal of Occupational and Environmental Medicine
|Convention or series no.
||Deubner D.C., Sabey P., Huang W., Fernandez D., Rudd A., Johnson W.P., Storrs J., Larson R.
||Solubility and chemistry of materials encountered by beryllium mine and ore extraction workers - Relation to risk
||Oct. 2011, Vol.53, No.10, p.1187-1193. Illus. 22 ref.
||Solubility_and_chemistry_[BUY_THIS_ARTICLE] [in English]
ILO_LABORDOC_[INTRANET_ACCESS] [in English]
||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.
||USA; beryllium and compounds; berylliosis; exposure evaluation; mining industry
||breathing atmosphere; beryllium hydroxide; beryllium oxide; aluminium and compounds; silicon and compounds; sampling and analysis; determination in air
||D - Periodical articles
||Mines and quarries
Toxic and dangerous substances
|Broad subject area(s)
||Mining and quarrying