Skip directly to local search Skip directly to A to Z list Skip directly to navigation Skip directly to site content Skip directly to page options
CDC Home

Work-Related Lung Disease Surveillance System (eWoRLD)

All Pneumoconiosis: Pneumoconiotic Agents Exposures (Archive)

Pneumoconiotic agents: Percent of exposures exceeding designated occupational exposure limits by type of mine, MSHA inspector and mine operator samples, 1979-1999
Table showing Pneumoconiotic agents:  Percent of exposures exceeding designated occupational exposure limits by type of mine, MSHA inspector and mine operator samples, 1979-1999

- indicates incalcuable field
PEL - permissible exposure limitREL - recommended exposure limitSIC - 1987 Standard Industrial Classification

Note:  The NIOSH REL for respirable coal mine dust of 1.0 mg/m3 was adopted in September 1995. The MSHA respirable coal mine quartz exposure data and the NIOSH REL for respirable quartz cannot be compared to each other because they are based on different sampling criteria. See appendices for source description, methods, and agents.

Source:  Mine Safety and Health Administration (MSHA) metal/nonmetal mine data and coal mine inspector and mine operator dust and quartz data.

Reference Number: 2002T06-15a

Date Posted: May 2003

Most Recent Version:
Contact Us:
Centers for Disease Control and Prevention   1600 Clifton Rd. Atlanta, GA 30333, USA
800-CDC-INFO (800-232-4636) TTY: (888) 232-6348, 24 Hours/Every Day - cdcinfo@cdc.gov