---
type: threshold
id: mercury-alkyls-as-hg
asset: workplace-exposure-limits
title: "Mercury alkyls, as Hg — US workplace chemical exposure limits: federal OSHA vs Cal/OSHA, side by side"
sources:
  - https://www.dir.ca.gov/title8/5155.html
source_quote: "7439976 | S | Mercury alkyls, as Hg | -- | 0.01 | 0.04 mg/M 3 | -- | 0.03"
generated: true
harvested: 2026-08-05
stale_after: 2027-08-05
substance: "Mercury alkyls, as Hg"
pel_mgm3: "0.01"
ceiling: "0.04 mg/M 3"
stel_mgm3: "0.03"
verified: true
---
**Substance:** Mercury alkyls, as Hg

**PEL (mg/m³):** 0.01

**Ceiling:** 0.04 mg/M 3

**STEL (mg/m³):** 0.03

> 7439976 | S | Mercury alkyls, as Hg | -- | 0.01 | 0.04 mg/M 3 | -- | 0.03

Source: <https://www.dir.ca.gov/title8/5155.html>