Work-Related Lung Disease (WoRLD) Surveillance System

Figure 1-4. Asbestos: Geometric mean exposures by major industry division, MSHA and OSHA samples, 1979–2003

PEL - permissible exposure limitf/cc - fibers per cubic centimeterOSHA - Occupational Safety and Health Administration

Note:  See appendices for source description, methods, and agents.

Source:  MSHA metal/nonmetal mine data. OSHA Integrated Management Information System.

Archived Versions:

2002F01-05