Crystalline silica: Old problem, new problem
- IMMI Consulting Group, Rolla, MO (United States)
Known as an industrial health hazard for centuries, crystalline silica has recently gained enhanced recognition as a threat to human health by being classified as a 2A probable carcinogen'' by The International Agency for Research on Cancer. Its maximum allowable concentration as an impurity is established as 0.1%. This has led to consternation in the mining and mineral industries inasmuch as the accuracy of methodology available to measure crystalline silica content at this level in heterogeneous matrices has been severely questioned and unlabeled products distributed with crystalline silica contents in excess of 0.1% are considered in violation of the Hazard Communication Standard. Three problems exist: (1) defining acceptable reference standards; (2) establishing adequate measurement procedures; (3) marketing products in compliance with State and Federal regulations. A review and update of these problems has been developed for the guidance of quarry operators and mineral product manufacturers.
- OSTI ID:
- 5026216
- Report Number(s):
- CONF-9303210-; CODEN: GAAPBC
- Journal Information:
- Geological Society of America, Abstracts with Programs; (United States), Vol. 25:3; Conference: 27. annual Geological Society of America (GSA) North-Central Section meeting, Rolla, MO (United States), 29-30 Mar 1993; ISSN 0016-7592
- Country of Publication:
- United States
- Language:
- English
Similar Records
NIOSH testimony on asbestos before the Subcommittee on Coast Guard and Navigation, House Committee on Merchant Marine and Fisheries by R. A. Lemen, February 12, 1980
NIOSH (National Institute for Occupational Safety and Health) testimony to Subcommittee on Manpower, Compensation, and Health and Safety, House Committee on Education and Labor by Dr. John F. Finklea, October 7, 1975
Related Subjects
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
MINERAL INDUSTRY
HEALTH HAZARDS
SILICON OXIDES
OCCUPATIONAL EXPOSURE
OCCUPATIONAL SAFETY
RISK ASSESSMENT
SAFETY ANALYSIS
CHALCOGENIDES
HAZARDS
INDUSTRY
OXIDES
OXYGEN COMPOUNDS
SAFETY
SILICON COMPOUNDS
560300* - Chemicals Metabolism & Toxicology
570000 - Health & Safety