---
type: threshold
id: methacrylic-acid
asset: workplace-exposure-limits
title: "Methacrylic acid — US workplace chemical exposure limits: federal OSHA vs Cal/OSHA, side by side"
sources:
  - https://www.dir.ca.gov/title8/5155.html
source_quote: "79414 | S | Methacrylic acid | 20 | 70"
generated: true
harvested: 2026-08-05
stale_after: 2027-08-05
substance: "Methacrylic acid"
pel_ppm: "20"
pel_mgm3: "70"
verified: true
---
**Substance:** Methacrylic acid

**PEL (ppm):** 20

**PEL (mg/m³):** 70

> 79414 | S | Methacrylic acid | 20 | 70

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