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Document ID (ISN)66639
CIS number 96-742
ISSN - Serial title 0273-2300 - Regulatory Toxicology and Pharmacology
Year 1994
Convention or series no.
Author(s) Maxim L.D., Kelly W.P., Walters T., Waugh R.
Title A multiyear workplace-monitoring program for refractory ceramic fibers
Bibliographic information Dec. 1994, Vol.20, No.3, Pt.2, p.S200-S215. Illus. 46 ref.
Abstract This paper summarizes interim results of a five-year workplace monitoring programme conducted by firms belonging to the Refractory Ceramic Fibers Coalition (RCFC) pursuant to a Consent Agreement with the US EPA. This paper reviews the refractory ceramic fibre (RCF) industry, findings of animal bioassay and epidemiological investigations, and the regulatory approach used by EPA. In brief, the programme will gather 720 time-weighted average (TWA) workplace concentration measurements annually, partitioned among eight functional job classifications, both from plants that manufacture and from those that process or use RCF. Statistical analyses reveal that: workplace airborne RCF concentration data are approximately log-normally distributed; 93% of workplace TWAs are beneath the industry's recommended exposure guideline of one fibre per cubic centimetre; there are significant differences in average workplace RCF concentrations among job types.
Descriptors (primary) health programmes; workplace monitoring; synthetic fibres; air sampling; exposure evaluation; inhalation toxicity; permissible levels
Descriptors (secondary) synthetic fibre industry; epidemiologic study; extrapolation animal man; monitoring for air contamination; personnel monitoring; medico-legal aspects; determination of exposure limits
Document type D - Periodical articles
Country / State or ProvinceUSA
Subject(s) Dust, aerosols and related diseases
Broad subject area(s) Chemical safety
Browse category(ies) Workplace health promotion
Occupational exposure limits
Exposure evaluation