Chemical name: 2,7:3,6-Dimethanonaphth[2,3-b]oxirene, 3,4,5,6,9,9-hexachloro-1a,2,2a,3,6,6a,7,7a-octahydro-, (1a.alpha.,2.beta.,2a.alpha.,3.beta.,6.beta.,6a.alpha.,7

Final regulatory action has been taken for the category: Pesticide

Final regulatory action: The chemical is Banned

Use or uses prohibited by the final regulatory action:

All uses and formulations are prohibited

Pesticide use or uses that remain allowed:

none

The final regulatory action was based on a risk or hazard evaluation: Yes

Summary of the final regulatory action:

Dieldrin was banned in the Environment Act 2008

The reasons for the final regulatory action were relevant to: Human health

Summary of known hazards and risks to human health:

Dieldrin and aldrin, which rapidly convert to dieldrin in the environment and in the

human body, have been subjected to control actions principally due to their high

toxicity to man and many animals, to their persistence in the environment, and to their

Form for notification of final regulatory action to ban or severely restrict a chemical Page 4

bioaccumulation in the food chain and in human tissues.

Dieldrin is highly toxic to human beings, with short-term, high levels of exposure

causing headache, dizziness, and tremors followed by convulsions, loss of

consciousness and possibly death. Oral doses of aldrin and dieldrin have caused liver

cancer in mice but not rats.

Expected effect of the final regulatory action in relation to human health:

The ban is expected to eliminate hazards, thereby reduced exposure of

diedrin to human health

Date of entry into force of the final regulatory action: 16/06/2009