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Court of Appeals ruling, the new rule would set the CrVI PEL at 5 micrograms per cubic meter of air ([micro]g/[m. The risk increased by 12 percent for every increase of 10 micrograms per cubic meter of air ([micro]g/[m. Under OSHA rules, employers are also required to test the blood lead levels of their employees twice a year if the amount of airborne lead in the workplace exceeds 30 micrograms per cubic meter of air, but not many employers undertake those tests, said Papanek. |
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