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MCPA

General Information

• MCPA product names
• Chemical Class: Phenoxy Herbicide
• Uses: alfalfa, barley, clover, flax, lespedeza, oats, grass, peas, rice, rye, sorghum, trefoil, triticale, and wheat, as well as grass grown for seed, to control a wide spectrum of broadleaf weeds. registered for use on residential lawns, sod farm turf, golf courses, rights-of-way, pasture, and rangeland
• Alternatives: Agriculture/pasture, Lawns, Rights-of-way
• Beyond Pesticides rating: Toxic

Health Effects

• EPA Acute Toxicity Class: I (highly toxic)
• Cancer: Linked to non-Hodgkin's lymphoma (Cancer, 1999)
• Endocrine Disruption:
• Reproductive Effects: Yes (4)
• Neurotoxicity: Yes (8)
• Kidney/ Liver Damage:Yes (4)
• Sensitizer/ Irritant: Yes (8)
• Birth/ Developmental Defects: Not documented

Environmental Effects

• Detected in Groundwater: Yes (27)
• Detected in Streams: Not documented
• Potential Leacher: Yes (4)
• Toxic to Birds: Yes (8)
• Toxic to Fish/ Aquatic Organisms: Not documented
• Toxic to Bees: Yes (20)
• Toxic to Mammals: Not documented
• Long-Range Transport: Not documented

Additional Information

• Regulatory Information:
  • EPA Reregistration Eligibility Decision (RED) signed (9/2004)
• Supporting information:
  • Extoxnet MCPA Factsheet (Extension Toxicology Network)
  • PAN Pesticides Database:MCPA (Pesticide Action Network)
• Key Studies:
  • A Case–Control Study of Non-Hodgkin Lymphoma and Exposure to Pesticides Journal of the American Cancer Society, 1999.