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Can I read Agricultural Pesticides Pose a Continuous Ecotoxicological Risk to Aquatic Organisms in a Tropical Horticulture Catchment on EtoBox?
Agricultural Pesticides Pose a Continuous Ecotoxicological Risk to Aquatic Organisms in a Tropical Horticulture Catchment by Frederik T. Weiss; Clemens Ruepert; Silvia Echeverría-Sáenz; Rik I.L. Eggen; Christian Stamm is a Environmental Science article available to read on EtoBox.
What is Agricultural Pesticides Pose a Continuous Ecotoxicological Risk to Aquatic Organisms in a Tropical Horticulture Catchment about?
Pesticides are used throughout the tropics in large amounts to protect crops against pests and weeds. These chemicals may be lost to the aquatic environment and impair its ecological status and the water quality for human consumption. Despite intensive use of pesticides in many developing countries, the knowledge of pesticide levels in aquatic ecosystems is often very limited. In this study, we try to fill this gap for an horticultural catchment of 35.9 km2 in Costa Rica, which is intensively used by small-holder farming for potatoes and vegetable production. We continuously monitored pesticides in the Tapezco river during two consecutive rainy seasons with passive sampling systems and screened for a broad set of polar and non-polar pesticides. Spatially distributed measurements revealed high pesticide concentrations of many fungicides, herbicides and insecticides throughout the watershed. Concentration ranges revealed little spatio-temporal variation. From an ecotoxicological point of view, the insecticide levels – notably chlorpyrifos and cypermethrin - were most critical. The observed concentration levels exceeded chronic environmental quality standards more than 100-fold at all
Who reads Agricultural Pesticides Pose a Continuous Ecotoxicological Risk to Aquatic Organisms in a Tropical Horticulture Catchment?
It is typically read by researchers, students, and practitioners in Environmental Science.
- Author
- Frederik T. Weiss; Clemens Ruepert; Silvia Echeverría-Sáenz; Rik I.L. Eggen; Christian Stamm
- Publisher
- Elsevier BV
- Published
- 2023
- Language
- EN
- Field
- Environmental Science (Physical Sciences)