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El Salvador - Final Regulatory Action
Methyl parathion CAS number:
Date circular:

Chemical name: O,O-Dimethyl O-4-nitrophenyl phosphorothioate

Final regulatory action has been taken for the category: Pesticide

Final regulatory action: The chemical is Severely Restricted

Use or uses prohibited by the final regulatory action:

Severely restricted.

Pesticide use or uses that remain allowed:

Only concentrations at: 2% w/w, 45% w/v, 48% w/v and 50% w/v.

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

Summary of the final regulatory action:

a) use prohibited in nurseries;
b) use prohibited in the following crops: coffee, sugar cane, citrus, broccoli, tomatoes, chili pepper, tobacco, rice and ornamentals; and
c) use banned for stored wheat.

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

Summary of known hazards and risks to human health:

Studies assessed neurotoxic symptoms and signs in workers produced by the pesticide. Other studies reported organophosphoric residues in mothers' milk in agricultural areas.

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

It is expected a reduction of the use and consequently a reduction of the residues level for this kind of pesticide, in various studies performed on the population regularly exposed to pesticides.

Summary of known hazards and risks to the environment:

Studies reported organiphosphoric residues in subterranean waters and soil.

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

Reduce use and application of this kind of pesticides.
Also a considerable import reduccion.

Date of entry into force of the final regulatory action: 18/02/2004