Assessment of the potential risk of leaching pesticides in agricultural soils: study case Tibasosa, Boyacá, Colombia

Laura Navarro; Ricardo Camacho; Julián E López; Juan F Saldarriaga

doi:10.1016/j.heliyon.2021.e08301

Assessment of the potential risk of leaching pesticides in agricultural soils: study case Tibasosa, Boyacá, Colombia

Heliyon. 2021 Nov 2;7(11):e08301. doi: 10.1016/j.heliyon.2021.e08301. eCollection 2021 Nov.

Authors

Laura Navarro¹, Ricardo Camacho^{1

2}, Julián E López³, Juan F Saldarriaga¹

Affiliations

¹ Department of Civil and Environmental Engineering, Universidad de los Andes, Carrera 1Este #19A-40, Bogotá, 111711, Colombia.
² Department of Infrastructure Engineering, The University of Melbourne, Parkville, VIC, 3010, Australia.
³ Environmental Engineering Program, Universidad de Medellín, Carrera 87 #30-65, Medellín, 050026, Colombia.

Abstract

Agricultural soils need monitoring systems to address pesticide risks for humans and the environment. The purpose of this paper was to obtain leaching risk maps of the pesticides imidacloprid, lambda-cyhalothrin, and chlorpyrifos in agricultural soil under an onion (Allium cepa L.) crop in Tibasosa, Boyacá, Colombia. This was obtained by studying the soil types in the area, analyzing the behavior of pollutants in the soil profile, using a delay factor and an attenuation factor to finally include GIS allowing visualization of the areas of greater potential risk in the study area.

Keywords: Chlorpyrifos; Imidacloprid; Lambda-cyhalothrin; Leaching; Partition coefficient; Potential risk.