Super LawnWeeder Herbicide

SECTION 2: Hazards identification

Main hazard: Extremely irritating and corrosive to eyes of rabbits. Risk of serious damage to eyes. Flammability: Slight fire hazard when exposed to heat or flame. Chemical hazard: Phytotoxicity to adjoining crops because of drift. Biological hazard: Possible risk of groundwater contamination at point sources, such as loading, mixing and disposal sites. Reproductive hazard: Dicamba is suspected of being a human teratogen. No direct and conclusive evidence of reproductive problem associated 2,4-D or MCPA in humans exists. Eye effects: eyes: Dicamba: Extremely irritating and corrosive to eyes. Get medical aid. Flush with running tap water for at least 15 minutes. See in section 11 “Skin and eye contact” 2,4-D: Irritating to eyes MCPA: Risk of serious damage to eyes. Causes irreversible eye damage.

Health Effects - Skin

Dicamba: Moderately irritating to skin (rabbits). Moderate skin sensitiser (guinea pigs) Acute dermal LD50 (rabbit) > 2000 mg/kg 2,4-D: Harmful in contact with skin. Skin and eye irritant (rabbits). No skin sensitiser (guinea pigs). 2,4-D has produced serious eye and skin irritation among agricultural workers. MCPA: Harmful in contact with skin. May cause sensitization by inhalation. Acute dermal LD50 (rabbit) > 1000 mg/kg

Potential health effects

ingestion Dicamba Acute oral LD50 (rat) = 1707 mg/kg 2,4-D: Harmful if swallowed. Acute oral LD50 (rat) = 375 mg/kg; mice 138 mg/kg MCPA: Acute oral LD50 (rat) = 700 mg/kg, mice 550. The estimated human lethal oral dose is from 250 to 450 mg/kg inhalation Dicamba LC50 (4 h) for rats > 9.6 mg/ℓ 2,4-D: LC50 (24 h) for rats > 1.79 mg/ℓ MCPA: LC50 (4 h) for rats > 6.36 mg/ℓ May cause sensitization by inhalation. Carcinogenic: Dicamba: Data from laboratory studies are inadequate for EPA to determine if dicamba can increase the risk of cancer in humans. 2,4-D: In humans, a variety of studies give conflicting results. There remains considerable controversy about the methods used in the various studies. Investigations ate continuing. MCPA: All of the available cancer evidence on MCPA indicates that the compound does not cause cancer. Mutagenicity: See section 11. Neurotoxicity: Accidental human poisoning with 2,4-D, which resulted in severe neurotoxicity, has been reported. 4. FIRST AID MEASURES AND PRECAUTIONS Product in eye: Flush immediately with clear clean running water for about 15 minutes. Hold eyelids apart to rinse the entire surface of the eye and lids. If eye symptoms (redness, irritation or pain) persist refer patient to ophthalmologist for examination of eye.