Herbicide Residues in Water Resources: A Scoping Review

Several recent studies have focused on leaching pesticides from agricultural soils into surface and groundwater resources during irrigation. As a result, information about herbicide residues in water was necessary for conserving related resources. This study provided an overview of monitoring herbicides in water resources worldwide. In this scoping review, five databases were searched for publications (۱۹۹۰ to April ۲۰۲۱), including Scopus, PubMed/Medline, Cochrane library, Embase, and Web of Science. Among the ۳۹۴ identified articles, ۱۷ papers were selected for inclusion. Most of these studies have been conducted in regions with low herbicide concentrations, including Spain, Greece, Canada, Brazil, Hungary, Malawi, Portugal, Lesotho, Germany, Serbia, and the USA. The high-level alachlor, metolachlor, atrazine, metribuzin, and simazine herbicides in groundwater were detected in Portugal (۰.۴-۱۳ μg/L). An overview of studies demonstrated that herbicides are widely used in water resources, and surface waters are more contaminated than groundwaters.

Keywords:

Herbicide , water resources , Surface water , Agriculture activity