23 KB111 KB20 KB200220262003Bregar, Renataštevilka:4letnik:42str. 160-166ISSN:0351-0026COBISSID:1109733URN:URN:NBN:SI:doc-HVDZZE3VslInštitut za varovanje zdravja Republike SlovenijeZdravstveno varstvoherbicidipesticidipitna vodapodtalna vodaHerbicidi in njihovi metaboliti v podtalni vodi| Herbicides and their metabolites in ground water|The development and use of pesticides has markedly stimulated agricultural productivity. Herbicide production accounts for 46 % of the total world production of pesticides. Triazines are the most widely used herbicides; they are mostly employed to control broad-leaved weeds and other vegetation. The majority of herbicides are applied directly to soil or are sprayed over fields. Because of large production, good solubility and high stability of herbicides, large amounts of these chemicals are released into the environmentwhere they enter surface and ground waters. Given the fact that underground water is often the major source of drinking water, monitoring herbicide levels is essential for achieving the water quality objectives The paper closes with the presentation of the results of herbicide levels measurements in the Ljubljansko polje and Ljubljansko barje ground waterRazvoj in uporaba pesticidov igrata pomembno vlogo pri povečevanju kmetijske pridelave. Kar 46 - odstotni delež proizvodnje vseh pesticidov predstavljajo herbicidi. Najbolj razširjeni so triazinski herbicidi - herbicidi za zatiranješirokolistnih plevelov in ostale vegetacije. Večina herbicidov se dodaja neposredno v zemljo ali škropi po poljih. Posledica velike proizvodnje in njihove sorazmerno dobre topnosti in stabilnosti je, da se od tu sproščajo v okolje in spirajo v površinske vode in v podtalnico. Postavitev objektivnih meril za nadzor kakovosti voda je spremljanje koncentracij herbicidov v vodi nujno, še posebej, ker je podtalna voda najpogostejši vir pitne vode. Na koncu prispevka bodo predstavljeni rezultati spremljanja vsebnosti herbicidov v podtalni vodi Ljubljanskega polja in barjaTEXTznanstveno časopisjejournalsSlovenian National E-content AggregatorNational and University Library of SloveniaInštitut za varovanje zdravja RS