ELR Citation: ELR 20901
No(s). s. 78-1959 et al (9th Cir. Oct 30, 1984)

The court rules that the Occupational Health and Safety Administration's (OSHA's) maximum permissible exposure level (PEL) for airborne arsenic nonferrous metal smelting facilities is supported by substantial evidence. The court first upholds OSHA's conclusion that the current PEL of 500 micrograms ...