Rationale for NIOSH Recommended Exposure Limits Adopted During 1988 OSHA PEL Project Update

This appendix lists approximately 450 chemicals for which NIOSH adopted RELs on the basis of their comments during the OSHA PEL (permissible exposure limits) Project.

For further information about these chemicals, refer to OSHA’s final rule on air contaminants in the Federal Register [54 FR 2641 (1989)].

Additional Resources

Index of Chemical Names
Index of CAS Numbers