---
type: threshold
id: 1-3-butadiene-see-also-section-5201
asset: workplace-exposure-limits
title: "1,3-Butadiene (see also section 5201) — US workplace chemical exposure limits: federal OSHA vs Cal/OSHA, side by side"
sources:
  - https://www.dir.ca.gov/title8/5155.html
source_quote: "106990 | | 1,3-Butadiene (see also section 5201) | 1 | 2.2 | | 5 | 11"
generated: true
harvested: 2026-08-05
stale_after: 2027-08-05
substance: "1,3-Butadiene (see also section 5201)"
pel_ppm: "1"
pel_mgm3: "2.2"
stel_ppm: "5"
stel_mgm3: "11"
verified: true
---
**Substance:** 1,3-Butadiene (see also section 5201)

**PEL (ppm):** 1

**PEL (mg/m³):** 2.2

**STEL (ppm):** 5

**STEL (mg/m³):** 11

> 106990 | | 1,3-Butadiene (see also section 5201) | 1 | 2.2 | | 5 | 11

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