- OIL & GAS
Articles by Bill Noone
For workers in the welding industry, the new lower OSHA permissible exposure limit (PEL) for hexavalent chromium should be good news. â€œHex chrome,â€ a known human carcinogen, can be produced when welding on stainless steel or some painted surfaces. OSHAâ€™s new standard, published Feb. 28 as a result of a court order, reduces the PEL tenfold, from 52 to five micrograms of chromium per cubic meter of air as an eight-hour time-weighted average. The rule becomes effective on May 30.