---
type: threshold
id: styrene
asset: workplace-exposure-limits
title: "Styrene — 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: "Styrene | 100-42-5 | - | ( 2 ) | - |"
generated: true
harvested: 2026-08-05
stale_after: 2027-08-05
substance: "Styrene"
cas_number: "100-42-5"
verified: true
---
**Substance:** Styrene

**CAS No.:** 100-42-5

> Styrene | 100-42-5 | - | ( 2 ) | - |

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