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A micro-hemolysis assay for monitoring mineral dusts.

Authors
Razzaboni-BL; Rainey-L; Wallace-WE Jr.; Vallyathan-V; Bolsaitis-P
Source
Proceedings of the 3rd Symposium on Respirable Dust in the Mineral Industries, Pittsburgh, Pennsylvania, October 17-19, 1990. Frantz RL, Ramani, RV, eds., Littleton, CO: Society for Mining, Metallurgy, and Exploration, 1990 Oct; :111-115
Link
NIOSHTIC No.
20034317
Abstract
The hemolytic activity of milligram-sized mineral dust samples from coal mines collected in personal dust samplers were measured by a modified Harington assay method which increases the sensitivity of the technique. Measurements were conducted on a large number of samples from different mines characterized for gravimetric quartz content and the relative bulk concentration of common contaminants (Al,Ca,Fe). The results of these measurements were compared to the hemolytic activity of pure quartz and of mineral samples obtained from roof-bolter dust boxes of two coal mines. No correlation could be established between hemolytic activity and the compositional variables tested. The results suggest that the distribution of minerals among individual particles and the surface characteristics of particles, rather than the bulk concentration, determine the hemolytic activity of respirable mine dusts.
Keywords
Dust-particles; Dust-exposure; Airborne-particles; Airborne-dusts; Particulate-dust; Mineral-dusts; Mining-industry; Coal-mining; Coal-dust; Quartz-dust; Silica-dusts; Silicon-compounds; Dust-analysis; Dust-sampling
CAS No.
14808-60-7
Publication Date
19901017
Document Type
Conference/Symposia Proceedings
Editors
Frantz-RL; Ramani-RV
Fiscal Year
1991
NTIS Accession No.
NTIS Price
ISBN No.
9780873350983
NIOSH Division
DRDS
Source Name
Proceedings of the 3rd Symposium on Respirable Dust in the Mineral Industries, Pittsburgh, Pennsylvania, October 17-19, 1990
State
WV
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