---
type: threshold
id: nitric-oxide
asset: workplace-exposure-limits
title: "Nitric oxide — 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: "Nitric oxide | 10102-43-9 | 25 | 30 | - |"
generated: true
harvested: 2026-08-05
stale_after: 2027-08-05
substance: "Nitric oxide"
cas_number: "10102-43-9"
pel_ppm: "25"
pel_mgm3: "30"
verified: true
---
**Substance:** Nitric oxide

**CAS No.:** 10102-43-9

**PEL (ppm):** 25

**PEL (mg/m³):** 30

> Nitric oxide | 10102-43-9 | 25 | 30 | - |

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