Evaluation of the impact of atrazine on the aquatic environmentFunded under: JRC-ENVPROT 5C
Atrazine is an s-triazine compound, used as a selective pre- and post- emergency herbicide, for the control of broadleaf and grassy weeds in corn, sorghum, sugarcane, pineapple and other crops. Besides benefits, its use implies possible serious problems, such as toxic effects on non-target organisms. In the present study, up-to-date data of the effects of atrazine on aquatic organisms have been presented. No significant adverse effects on aquatic flora at concentrations ranging from 0.1 to 0.2 mg/l have been noted. In most cases adult fish LC 50's were reported to be greater than 1.0 mg/l. Atrazine has a low tendency to bioaccumulate in animals and, once absorbed, it is rapidly metabolised to non-toxic metabolites. Atrazine has not been shown to be mutagenic in standard assays with micro-organisms and studies on the carcinogenicity of the compound have shown inconclusive results. The most important decomposition route is the physicochemical one, being more significant than the microbial one. Atrazine is found to be moderately persistent in the environment with a half-life ranging from 2 to 5 months.
Bibliographic Reference: EUR 12569 EN (1990) 95 pp., MF, ECU 4, blow-up copy ECU 12.50
Record Number: 199011131 / Last updated on: 1994-12-01
Original language: en
Available languages: en