Usmerjeno vzorčenje podtalnih in pitnih voda na aktivne snovi pesticidov in njihovih razgradnih produktov v letu 2024

slovenian

2025

active substances in PPP   drinking water   groundwater monitoring   metabolites   pesticides

Inštitut za hmeljarstvo in pivovarstvo Slovenije
(Obvezni izvod spletne publikacije)

As part of the professional assignment, we monitored the content of active substances in PPP and their degradation products in the groundwater of Slovenia. 34 groundwater samples and 7 drinking water samples were examined for active substances residues, taken at several locations in three areas, namely the Savinja Basin (seven sampling points), the Drava Basin (seven sampling points) and the Mura Basin (ten sampling points). The selected groundwater sampling sites were determined based on the hydrogeological and pedological characteristics and agricultural practices in the individual area. These sites represent the most critical points for pesticide leaching into groundwater, as they meet key criteria that increase the risk of contamination. Each water sample was analyzed for more than 500 components of plant protection products (active substances and metabolites). In all analyzed groundwater samples, 20 different active substances or their metabolites were detected, which represents around 3% of all analyzed components. In all analyzed drinking water samples, only 6 different components of active substances or their metabolites were detected, which represents less than 1% of all analyzed components. Sampling and analysis of selected groundwater and drinking water in parts of Slovenia where the most intensive agricultural production is carried out on soils most vulnerable to leaching into groundwater have shown that these areas of agricultural activity have relatively few active substances residues. Research in the field of groundwater will continue and, if necessary, new active substances and metabolites of PPP will be added to the program.

20.01.2026