Evaluation of the toxicological effect grade of dichlorvos after its exposure in environment without ventilation

Abstract

Household insecticides are used for protecting the urban environment. However, these product might cause health risk. This preliminary study aimed at evaluating the toxic effects of an insecticide for household use (dichlorvos) in rats by inhalation exposure in an unventilated environment. The insecticide was sprayed inside a glass chamber and the rats were exposed for 6 and 24 hours. The plasma cholinesterase activity was analyzed before and after the exposure. The effect of inhalation was reflected on the enzyme depression in association with the exposure length of time. The permanence in the environment without ventilation, for longer time, resulted in higher degreed of intoxication.