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Gateway on Pesticide Hazards and Safe Pest Management

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Monosodium methanearsonate (MSMA)

General Information

  • Product Names:
  • Chemical Class: Arsenical herbicide
  • Uses:  historically used in cotton production.
  • Alternatives: Organic agriculture
  • Beyond Pesticides rating: Toxic

Health and Environmental Effects

  • Cancer: Possible (23)
  • Endocrine Disruption: Not documented
  • Reproductive Effects: Yes (23)
  • Neurotoxicity: Not documented
  • Kidney/Liver Damage: Yes (23)
  • Sensitizer/ Irritant: Not documented
  • Birth/Developmental Not documented
  • Detected in Groundwater: Not documented
  • Potential Leacher: Yes (27)
  • Toxic to Birds: Yes (23)
  • Toxic to Fish/Aquatic Organisms: Yes (23)
  • Toxic to Bees: Not documented

Additional Information