O USO DE AGROTÓXICOS E OS IMPACTOS NOS ECOSSISTEMAS AQUÁTICOS

Abstract

Agricultural production is based on intensive use of chemicals in order to obtain greatest yields by controlling pests that affects crops. However, these molecules can contaminate aquatic environments and achieve organisms on different trophic levels. This study aimed to conduct a literature review highlighting the main aspects related to the dynamics and fate of pesticides in environment and contamination of aquatic ecosystems and organisms by these chemicals. According to this research, the use of pesticides is necessary to meet the demand for food, because when these compounds reach the environment may persist for a long time and cause impacts on aquatic ecosystems. These impacts involve changes since cellular levels to population change and aquatic biodiversity. The application quality, the right choice of product and the proper dosage for a particular culture beyond technical knowledge on the part of agronomy professionals are key factors for maintaining quality and environmental health.