---
type: threshold
id: butadiene-1-3-butadiene-see-29-cfr-1910-1051-29-cfr-1910-19-l
asset: workplace-exposure-limits
title: "Butadiene (1,3-Butadiene); See 29 CFR 1910.1051; 29 CFR 1910.19(l) — US workplace chemical exposure limits: federal OSHA vs Cal/OSHA, side by side"
sources:
  - https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1000TableZ1
source_quote: "Butadiene (1,3-Butadiene); See 29 CFR 1910.1051; 29 CFR 1910.19(l) | 106-99-0 | 1 ppm/5 ppm STEL | - | - |"
generated: true
harvested: 2026-08-05
stale_after: 2027-08-05
substance: "Butadiene (1,3-Butadiene); See 29 CFR 1910.1051; 29 CFR 1910.19(l)"
cas_number: "106-99-0"
pel_ppm: "1 ppm/5 ppm STEL"
verified: true
---
**Substance:** Butadiene (1,3-Butadiene); See 29 CFR 1910.1051; 29 CFR 1910.19(l)

**CAS No.:** 106-99-0

**PEL (ppm):** 1 ppm/5 ppm STEL

> Butadiene (1,3-Butadiene); See 29 CFR 1910.1051; 29 CFR 1910.19(l) | 106-99-0 | 1 ppm/5 ppm STEL | - | - |

Source: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1000TableZ1>