---
type: threshold
id: p-dichlorobenzene-1-4-dichlorobenzene
asset: workplace-exposure-limits
title: "p-Dichlorobenzene; 1,4-dichlorobenzene — US workplace chemical exposure limits: federal OSHA vs Cal/OSHA, side by side"
sources:
  - https://www.dir.ca.gov/title8/5155.html
source_quote: "106467 | | p-Dichlorobenzene; 1,4-dichlorobenzene | 10 | 60 | 200 ppm | 110 | 675"
generated: true
harvested: 2026-08-05
stale_after: 2027-08-05
substance: "p-Dichlorobenzene; 1,4-dichlorobenzene"
pel_ppm: "10"
pel_mgm3: "60"
ceiling: "200 ppm"
stel_ppm: "110"
stel_mgm3: "675"
verified: true
---
**Substance:** p-Dichlorobenzene; 1,4-dichlorobenzene

**PEL (ppm):** 10

**PEL (mg/m³):** 60

**Ceiling:** 200 ppm

**STEL (ppm):** 110

**STEL (mg/m³):** 675

> 106467 | | p-Dichlorobenzene; 1,4-dichlorobenzene | 10 | 60 | 200 ppm | 110 | 675

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