Return to the list
Uruguay - Final Regulatory Action
Methamidophos (Soluble liquid formulations of the substance that exceed 600 g active ingredient/l) CAS number:
Date circular:

Chemical name: Phosphoramidothioic acid, O,S-dimethyl ester

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 phytosanitary uses and formulations ara prohibited

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

Summary of the final regulatory action:

Due to:
- high toxicity to humans and, particularly high risk to applicators;
- its toxicity implies, as well, high risks to beneficial insects and extreme toxicity for birds;
- there are less harmful alternatives

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

Summary of known hazards and risks to human health:

Was performed on the basis of methamidophos formulations inherent dangers. The high toxicity implies a high risk for rural workers and for the rest of the exposed population.

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

Banning use of methamidophos formulations. Eliminate this product from the market.

Summary of known hazards and risks to the environment:

Due to the inherent toxicity of methamidophos formulations, their phytosanitary use jeans a high risk to mammals, birds, aquatic organisms and beneficial insects.

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

Prohibit the use of methamidophos formulations with the consequent reduction of risks and dangers for the environment.

Date of entry into force of the final regulatory action: 17/10/2006