---
type: threshold
id: nitrogen-dioxide
asset: workplace-exposure-limits
title: "Nitrogen dioxide — 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: "Nitrogen dioxide | 10102-44-0 | (C)5 | (C)9 | - |"
generated: true
harvested: 2026-08-05
stale_after: 2027-08-05
substance: "Nitrogen dioxide"
cas_number: "10102-44-0"
pel_ppm: "(C)5"
pel_mgm3: "(C)9"
verified: true
---
**Substance:** Nitrogen dioxide

**CAS No.:** 10102-44-0

**PEL (ppm):** (C)5

**PEL (mg/m³):** (C)9

> Nitrogen dioxide | 10102-44-0 | (C)5 | (C)9 | - |

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