Pesticide databaseInsecticidesChecked 2026-10-01
Dicofol ジコホル（ケルセン）
Organochlorines (banned or expired): DDT, BHC, drins and others. Because they hardly break down and remain in the body and the environment, they stopped being used in Japan in the 1970s.
In Japan
- Registration
- Its registration as a pesticide expired on March 19, 2004 (first registered December 26, 1956). It can no longer be used as a pesticide in Japan.
- ADI (acceptable daily intake)
- No risk assessment report by the Food Safety Commission of Japan was found
ADI: the amount considered to have no effect on health even if eaten every day for a lifetime. ARfD: the amount considered to have no effect on health when eaten at one time (within 24 hours). Both are set by the Food Safety Commission of Japan, mainly from animal studies.
Evaluations abroad
- WHO acute toxicity class
- II (Moderately hazardous), LD50 c690 mg/kgBased on the toxicity of the undiluted active ingredient given once, mainly to rats by mouth (LD50 = the dose that kills half; the smaller, the stronger the acute toxicity). It is not an assessment of the safety of residues in food.
- EU
- Not approved in the EUEU ADI: Dicofol=0.002 mg/kg bw/day; ARfD: Dicofol=0.15 mg/kg bw/dayDicofol=Not approved / Dicofol (containing <78% p.p´-dicofol or > 1g/kg DDT and DDT related cmpds)=Not approved
- IARC (carcinogenicity)
- No matching entry in the IARC list (not evaluated or out of scope, including Group 3)
Related explainers
Sources
- FAMIC (Food and Agricultural Materials Inspection Center), pesticide registration information (as of Sept. 30, 2026) (Japanese)
- WHO Recommended Classification of Pesticides by Hazard 2019
- EU Pesticides Database (Dicofol / Dicofol (containing <78% p.p´-dicofol or > 1g/kg DDT and DDT related cmpds))
Last checked 2026-10-01. Registrations and evaluations change over time. This page is a translation of our Japanese page; if they differ, the Japanese page is the reference.
Pesticides registered in Japan are approved by the government with set crops, amounts, numbers of applications and days before harvest. This page lists facts stated in laws and in evaluations by public bodies; it does not judge whether anything is good or bad.