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Bulgaria - Final Regulatory Action
Monocrotophos CAS number:
Date circular:

Chemical name:

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 formulations and uses are prohibited.

Pesticide use or uses that remain allowed:


The final regulatory action was based on a risk or hazard evaluation: No

Summary of the final regulatory action:

It is prohibited to production, use and place on the market all plant protection products containing Monocrotophos according to annual adopted list of active ingredients banned for use in plant protection products under the lant Protection Act. Monocrotophos is designated as a PIC chemical. (Annex I of the Regulation on the import and export of certain dangerous chemicals on the Bulgarian territory). The import and use of the chemical for research or laboratory purposes in quantities less than 10 kg are allowed.

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

Summary of known hazards and risks to human health:

Monocrotophos has a high acute oral toxicity and a moderate acute dermal toxicity and can be hazardous for human beings if incorrectly handled. On overexposure, typical signs and symptoms of organophosphorus poisoning may occur rapidly (Inhalation: muscle twitching; pupillary constriction; muscle cramp; excessive salivation; dizziness; laboured breathing; sweating; unconsciousness. Ingestion: headache; nausea; vomiting; abdominal cramps; diarrhoea; convulsions).

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

To avoid exposure of the chemicals and the associated risks to human health.

Summary of known hazards and risks to the environment:

In the environment, monocrotophos is degraded mainly via hydrolysis and oxidation. The products of these degradation pathways are non-cholinesterase inhibiting and of low toxicity. Volatilization appears to be the major factor in the rapid loss of residues following application.
Monocrotophos and its metabolites are rapidly degraded in soil, mainly biologically, to complete mineralization. They will not accumulate in the environment under normal use conditions.
Monocrotophos is highly toxic for birds, bees, aquatic invertebrates, and mammals, including wild species. It is moderately toxic for fish and non-toxic for microorganisms. The acute LD50 for birds is 1.0-6.5 mg/kg, for rainbow trout, 12 mg/litre, and for honey bees, 33-84 g/bee.

Expected effect of the final regulatory action in relation to the environment:

To avoid exposure of the chemical and the associated risks to environment.

Date of entry into force of the final regulatory action: 01/04/2003