# Cadmium — OSHA medical surveillance trigger thresholds by substance

For Cadmium, cfr section is 1910.1027; action level is 2.5 µg/m3 (TWA); pel is 5 µg/m3 (TWA); surveillance trigger is Employees exposed at or above the action level on 30 or more days per year (twelve consecutive months); exam frequency is Periodic medical examination at least biennially; biological sampling at least annually, recorded from its source on 2026-08-12.

- **Substance:** Cadmium _(verified: appears in the quote below)_
- **CFR section:** 1910.1027 _(verified: appears in the quote below)_
- **Action level:** 2.5 µg/m3 (TWA)
- **PEL:** 5 µg/m3 (TWA)
- **Surveillance trigger:** Employees exposed at or above the action level on 30 or more days per year (twelve consecutive months)
- **Exam frequency:** Periodic medical examination at least biennially; biological sampling at least annually
- **Record retention:** Duration of employment plus 30 years

## What the source says

> 1910.1027 Cadmium." /> 29 CFR §

## Source

- https://www.law.cornell.edu/cfr/text/29/1910.1027

Last verified: 2026-08-12. Review by: 2027-02-08.
Part of [OSHA medical surveillance trigger thresholds by substance](https://referencesource.org/osha-medical-surveillance-triggers/).