Alachlor

Synonyms

Trade names of products containing alachlor include Alanex, Bronco, Cannon, Crop Star, Lariat, Lasso, and Partner. [EXTOXNET]

Category

Herbicides, Chloracetanilide

Description

Granules or emulsifiable concentrate; [EXTOXNET]

Sources/Uses

Used as a systemic herbicide; [EXTOXNET] Used as a pre-emergent herbicide to control grasses and broadleaf weeds; [ACGIH] Used in corn, soybeans, dry beans, cotton, sorghum, sunflowers, peanuts, and other crops; [Krieger, p. 1753]

Comments

Allergic contact dermatitis rarely reported in farmworkers; [Kanerva, p. 1746] The following herbicides have an oral LD50 of >1 gm/kg and have little or no acute toxicity in humans: Alachlor, Amitrole, Ammonium sulfamate, Atrazine, Dalapon, Dicamba, Glyphosphate, Monuron, Oryzalin, Picloram, Propanil, Simazine, etc. [LaDou, p. 613] Alachlor is a Restricted Use Pesticide that is classified as slightly toxic. In chronic feeding studies of experimental animals, it causes injury to the liver and kidneys. [EXTOXNET] A dermal sensitizer; [ACGIH]

Restricted Use Pesticide (purchased & used only by certified applicators);

Reference Link #1

Biomedical References

Insufficient data

1 mg/m3, inhalable fraction and vapor

2.2E-05 mm Hg

Explanatory Notes

VP from HSDB;

Reference Link #2

Yes

Hepatoxic (a) from occupational exposure (secondary effect) or (b) in animal studies or in humans after ingestion

Confirmed Animal

Diseases

Occupational diseases associated with exposure to this agent:

• Contact dermatitis, allergic

Processes

Industrial Processes with risk of exposure:

• Farming (Pesticides)