---
type: threshold
id: chlorodiphenyl-42-chlorine-pcb
asset: workplace-exposure-limits
title: "Chlorodiphenyl (42% Chlorine) (PCB) — 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: "Chlorodiphenyl (42% Chlorine) (PCB) | 53469-21-9 | - | 1 | X |"
generated: true
harvested: 2026-08-05
stale_after: 2027-08-05
substance: "Chlorodiphenyl (42% Chlorine) (PCB)"
cas_number: "53469-21-9"
pel_mgm3: "1"
verified: true
---
**Substance:** Chlorodiphenyl (42% Chlorine) (PCB)

**CAS No.:** 53469-21-9

**PEL (mg/m³):** 1

> Chlorodiphenyl (42% Chlorine) (PCB) | 53469-21-9 | - | 1 | X |

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