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CAS 120-83-2

2,4-Dichlorophenol

Organic Chemicals, except for PFASPotential EDCPesticidesVOCCarcinogen

2,4-Dichlorophenol (2,4-DCP) is a chlorinated chemical used mainly to make herbicides (like 2,4-D) and some antiseptics. It can also form when certain chemicals break down or when water is disinfected with chlorine [1].

Where It Comes From

Manufacturing of herbicides/antiseptics; breakdown of chlorophenoxy herbicides; formation during water chlorination; releases from hazardous waste sites or incineration [1].

How You Are Exposed

Breathing air near factories or waste sites; drinking contaminated water; eating contaminated food; skin contact with soil or products. The body usually eliminates it quickly in urine [1].

Why It Matters

Short-term high exposure can cause eye/skin irritation, sweating, muscle twitching, and convulsions; liver and kidney effects seen in animals. Classified by IARC as possibly carcinogenic to humans (Group 2B) [1][2].

Who Is at Risk

Workers making or using it; people living near waste sites; private well users in affected areas; young children who play in contaminated soil [1].

How to Lower Your Exposure

Use safe water sources and test private wells if contamination is suspected; follow product labels and avoid burning household waste; at work, use ventilation and protective gear per safety guidance [1].

References

  1. [1]ATSDR. ToxFAQs for 2,4-Dichlorophenol (CAS 120-83-2). Agency for Toxic Substances and Disease Registry.
  2. [2]IARC. Monographs on the Evaluation of Carcinogenic Risks to Humans: Chlorophenols and their salts (including 2,4-Dichlorophenol). International Agency for Research on Cancer.

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