Monitoring of pesticides in drinking water during the period 2005-2015 in slovenia

Izhodišča in namen: Pesticidi so umetno pripravljene organske spojine, namenjene zatiranju plevelov, mrčesa, škodljivih organizmov ter povzročiteljev bolezni. Nepravilna raba pesticidov lahko povzroči onesnaženje pitne vode. Pesticidi so okolju in zdravju škodljivi, zato je spremljanje vsebnosti le-teh v pitni vodi zelo pomembno. Mejna vrednost posameznega pesticida v pitni vodi je 0,1 μg/L in vsote pesticidov 0,5 μg/L. Namen magistrskega dela je predstaviti vsebnost pesticidov v pitni vodi v Sloveniji v obdobju 2005–2015. Raziskovalna metodologija: V teoretičnem delu magistrskega dela smo naredili pregled literature v različnih bazah podatkov. Pri empiričnem delu smo naredili analizo podatkov monitoringa pitne vode v obdobju 2005–2015 v Sloveniji in rezultate prikazali v obliki grafov in tabel. Rezultati: Pitna voda v Sloveniji je najbolj onesnažena s pesticidi na območju Murske Sobote, Maribora in Novega mesta. Najvišja izmerjena vrednost posameznega pesticida v izbranem časovnem obdobju v Sloveniji je znašala 3,2 μg/L, izmerjena je bila na merilnem mestu Murska Sobota v letu 2010, v istem letu je bila tudi izmerjena vsota pesticidov 3,4 μg/L na merilnem mestu Murska Sobota. Diskusija in zaključek: Pitna voda je onesnažena s pesticidi predvsem zaradi intenzivne kmetijske dejavnosti ter tako posledično največje uporabe fitofarmacevtskih sredstev, in sicer na območju severovzhodne Slovenije (Murska in Dravska kotlina). V prihodnje bi bilo potrebno posvetiti več pozornosti predvsem izobraževanju in ozaveščanju uporabnikov glede pravilne uporabe pesticidov. Na področjih, kjer je pitna voda prekomerno onesnažena s pesticidi, bi bilo potrebno spodbujati ljudi k izvajanju biološkega kmetijstva in uporabe bioloških sredstev za zatiranje plevelov in škodljivcev.Starting points and purpose: Pesticides are artificially synthesized organic compounds, intended for the suppression of weeds, insects, harmful organisms and pathogens. The irregularly use of pesticides can cause contamination of drinking water. Pesticides are harmful to environment and health. Monitoring of pesticides in drinking water is very important. The limit value for the individual pesticide in drinking water is 0.1 μg/L and the sum of pesticides is 0.5 μg/L. The purpose of the master thesis is to present the content of pesticides in drinking water in Slovenia during the period of 2005-2015. Research methodology: In the theoretical part of the master thesis, we have done a review of literature and data study, found in different databases. Empirical par consists data analysis of drinking water monitoring during the period 2005-2015 in Slovenia. We present results in form of graphs and tables. Results: Drinking water in Slovenia is the most contaminated, with pesticides in areas of cities: Murska Sobota, Maribor, and Novo Mesto. The highest measured value of individual pesticide in the selected time period in Slovenia was 3.2 μg/L, it was measured at the measuring station Murska Sobota in the year 2010. In the same year, the total amount of the pesticides in water was 3.4 μg/L at the measuring location in the Murska Sobota. Discussion and conclusion: Pesticides contamination of drinking water is a result of intensive agricultural activity and, the largest use of plant protection products in Slovenia is on the north-eastern area (Murska Sobota and Dravska kotlina). In future, primary it would be necessary to devote more attention to education and raising of users awareness about the correct pesticides usage. In areas where drinking water is excessively contaminated with pesticides, it would be necessary to encourage people towards the implementation of the ecological farming and use of biological means for suppression of weeds and pests. II