---
type: threshold
id: chloroprene-2-chloro-1-3-butadiene
asset: workplace-exposure-limits
title: "Chloroprene; 2-chloro-1,3-butadiene — US workplace chemical exposure limits: federal OSHA vs Cal/OSHA, side by side"
sources:
  - https://www.dir.ca.gov/title8/5155.html
source_quote: "126998 | S | Chloroprene; 2-chloro-1,3-butadiene | 10 | 36"
generated: true
harvested: 2026-08-05
stale_after: 2027-08-05
substance: "Chloroprene; 2-chloro-1,3-butadiene"
pel_ppm: "10"
pel_mgm3: "36"
verified: true
---
**Substance:** Chloroprene; 2-chloro-1,3-butadiene

**PEL (ppm):** 10

**PEL (mg/m³):** 36

> 126998 | S | Chloroprene; 2-chloro-1,3-butadiene | 10 | 36

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