[Environmental protection and health of the population at using of a new cotton defoliant «uzdef-k» in agriculture].

Toxicity parameters of a new cotton defoliant «UzDEF-K» were studied in various ways of exposure. The preparation is established to be referred to the IV hazard class. Hygienic standards of a defoliant in environment objects andfoodstuffs (maximum concentration limit in reservoir’s water - 2,0 mg/l, in working zone air - 2,5 mg/m and atmospheric ambient air - 0,2 mg/m were set). Maximum allowable limit in foodstuffs - cotton oil: “it isn’t allowed”, APC in the soil - 1,15 mg/kg), were scientifically based regulations of safe using of a preparation in agriculture are: a sanitary protection zone-100 m, in terms of attendance at work - 5 days.