# Coke oven emissions — OSHA medical surveillance trigger thresholds by substance

For Coke oven emissions, cfr section is 1910.1029; action level is none defined; pel is 150 micrograms per cubic meter of air (150 µg/m3), averaged over any 8-hour period; surveillance trigger is all employees who are employed in a regulated area at least 30 days per year; exam frequency is at least annually, recorded from its source on 2026-08-12.

- **Substance:** Coke oven emissions _(verified: appears in the quote below)_
- **CFR section:** 1910.1029 _(verified: appears in the quote below)_
- **Action level:** none defined
- **PEL:** 150 micrograms per cubic meter of air (150 µg/m3), averaged over any 8-hour period
- **Surveillance trigger:** all employees who are employed in a regulated area at least 30 days per year
- **Exam frequency:** at least annually _(verified: appears in the quote below)_
- **Record retention:** at least 40 years, or for the duration of employment plus 20 years, whichever is longer

## What the source says

> (iii) The training program shall be provided at least annually for all employees who are employed in the regulated area , except that training regarding the occupational safety and <https://www.law.cornell.edu/definitions/index.php?width=840&height=800&iframe=true&def_id=9b27d2ff04887773c45ec67cb3d05f70&term_occur=999&term_src=Title:29:Subtitle:B:Chapter:XVII:Part:1910:1910.1029> health hazards associated with exposure to coke oven emissions

## Source

- https://www.law.cornell.edu/cfr/text/29/1910.1029

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/).