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Organophosphate Pesticide Drift from Agricultural Fields Elevates Risk for Pregnant Farmworkers
October 28, 2025

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July 1, 2025

Sleep Disorders in Farmers and Farmworkers Linked to Pesticide Exposure in Study Supporting Similar Findings
January 31, 2025

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Mevinphos

General Information

• Fact Sheet: Mevinphos.pdf
• Product Names:

  Shell Phosdrin Insecticide (Shell Chemical)
  Niagara Phosdrin (FMC)
  Master Brand Phosdrin (Stevens Industries)
  Royal Brand Phosdrin (Southern Agricultural Chemicals)
  Fasco Phosdrin (Landia Chemical), formulated with Endosulfan

• Chemical Class: Organophosphate insecticide
• Uses: No registered uses historically used on vegetables and fruits, predominantly lettuce and cole crops.
• Alternatives: Orgnaic agriculture, Least-toxic insecticides
• Beyond Pesticides rating: Toxic

Health and Environmental Effects

• Cancer: Not documented
• Endocrine Disruption: Not documented
• Reproductive Effects: Not documented
• Neurotoxicity: Yes (1)
• Kidney/Liver Damage: Yes (1)
• Sensitizer/ Irritant: Not documented
• Birth/Developmental: Not documented
• Detected in Groundwater: Not documented
• Potential Leacher: Yes (1)
• Toxic to Birds: Yes (2)
• Toxic to Fish/Aquatic Organisms: Yes (2)
• Toxic to Bees: Yes (3)

Additional Information

• Regulatory Status:
  • EPA Tolerance Reassessment Progress and Interim Risk Management Decision Decision (TRED) signed (12/2001)
  • Beyond Pesticides' Organophosphate cumulative risk comments.
• Supporting information:
  • Extoxnet Mevinphos Factsheet (Extension Toxicology Network)
  • PAN Pesticides Database: Mevinphos (Pesticide Action Network)
  • Scorecard Mevinphos Factsheet (Environmental Defense Fund)
• Studies [compiled from the Pesticide-Induced Diseases Database]
  • Pesticide exposure and sleep disorder: A cross-sectional study among Thai farmers. Juntarawijit, C. et al. (2025) Pesticide exposure and sleep disorder: A cross-sectional study among Thai farmers, Heliyon. Available at: https://www.cell.com/heliyon/fulltext/S2405-8440(24)17154-X.
  • Temporal trends of agricultural organophosphate pesticide use in California and proximity to pregnant people in 2021. Rotkin-Ellman, M., Carpenter, C., Richardson, M.J. et al. Temporal trends of agricultural organophosphate pesticide use in California and proximity to pregnant people in 2021. BMC Public Health 25, 3121 (2025). https://doi.org/10.1186/s12889-025-23939-y