Hexavalent chromium
For Hexavalent chromium, cfr section is 1910.1026; action level is 2.5 micrograms per cubic meter of air (2.5 µgm/m3) calculated as an 8-hour time-weighted average (TWA); pel is 5 micrograms per cubic meter of air (5 µgm/m3), calculated as an 8-hour time-weighted average (TWA); surveillance trigger is Who are or may be occupationally exposed to chromium (VI) at or above the action level for 30 or more days a year; experiencing signs or symptoms of the adverse health effects associated with chromium (VI) exposure; or exposed in an emergency; exam frequency is Within 30 days after initial assignment; annually; within 30 days after PLHCP written medical opinion recommends additional examination; whenever employee shows signs or symptoms; within 30 days after emergency exposure, recorded from its source on 2026-08-12.
- Substance
- Hexavalent chromium verified
- CFR section
- 1910.1026 verified
- Action level
- 2.5 micrograms per cubic meter of air (2.5 µgm/m3) calculated as an 8-hour time-weighted average (TWA)
- PEL
- 5 micrograms per cubic meter of air (5 µgm/m3), calculated as an 8-hour time-weighted average (TWA)
- Surveillance trigger
- Who are or may be occupationally exposed to chromium (VI) at or above the action level for 30 or more days a year; experiencing signs or symptoms of the adverse health effects associated with chromium (VI) exposure; or exposed in an emergency
- Exam frequency
- Within 30 days after initial assignment; annually; within 30 days after PLHCP written medical opinion recommends additional examination; whenever employee shows signs or symptoms; within 30 days after emergency exposure
- Record retention
- maintained and made available in accordance with 29 CFR 1910.1020
What the source says
<https://www.law.cornell.edu/definitions/index.php?width=840&height=800&iframe=true&def_id=6af9a0e4b2ea72786a9cf387077af7a7&term_occur=999&term_src=Title:29:Subtitle:B:Chapter:XVII:Part:1910:1910.1026> Assistant Secretary of Labor for Occupational Safety and Health, U.S. Department of Labor , or designee. Chromium (VI) [hexavalent chromium or Cr(VI)] means chromium with a valence of positive six, in any form and in any compound.
— law.cornell.edu, retrieved 2026-08-12
Source
- law.cornell.eduhttps://www.law.cornell.edu/cfr/text/29/1910.1026