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CAS 99-30-9

Dichloran

Dichloran (DCNA) is a pesticide (fungicide) used to prevent mold on fruits, vegetables, and ornamentals, especially during storage and transport. It matters because people can encounter residues in food and workers can be exposed during handling [1][2].

Where It Comes From

Applied in fields, greenhouses, and packinghouses to control post‑harvest molds on produce; residues may remain on treated crops [1][2].

How You Are Exposed

Eating treated produce; skin contact or inhaling spray/mist when mixing, applying, or working in treated storage rooms; less commonly from nearby soil or water [1].

Why It Matters

Can irritate eyes and skin; high doses in animal studies affected the liver. Regulators set limits (including an acceptable daily intake) and EPA found no dietary risks of concern at approved uses [1][2].

Who Is at Risk

Farm and packinghouse workers; people who mix/load or enter recently treated areas; children (higher intake per body weight); people with liver conditions [1][2].

How to Lower Your Exposure

Wash and, when practical, peel fruits and vegetables; follow product labels; use gloves, protective clothing, and ventilation when handling; keep children and pets away until sprays dry [1][3].

References

  1. [1]U.S. Environmental Protection Agency (EPA). Reregistration Eligibility Decision (RED) for Dichloran (DCNA).
  2. [2]WHO/FAO Joint Meeting on Pesticide Residues (JMPR). Dichloran (2,6‑dichloro‑4‑nitroaniline): toxicological evaluation and acceptable daily intake.
  3. [3]U.S. EPA. Food and Pesticides (guidance on reducing residues through washing and preparation).

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