Heavy metal content in some fertilizers used in Serbia

Abstract

Levels of heavy metals Cd, Cr, Ni and Pb obtained by analysis of inorganic and organic fertilizers available on the Serbian market are discussed in this paper. The first estimation of the heavy metal input in soils due to use of phosphate fertilizers is also given. The heavy metal contents of all analysed inorganic fertilizers were below the MAC according to the current Serbian regulations. Elevated concentrations of Ni were detected in two and a high Cr concentration in one sample of the substrates. The average (theoretical) heavy metal input in Serbian soils was calculated based on the application of 20 kg ha-1 P2O5 per year. The calculated heavy metal input was lower than European average and it is similar to the inputs recorded in Finland and Denmark.

U radu su prikazani rezultati analize sadržaja teških metala Cd, Cr, Ni i Pb u uzorcima neorganskih i organskih đubriva koja se nalaze na tržištu u Srbiji, a data je i početna procena količine teških metala koja se unose u zemljište prilikom upotrebe fosfatnih đubriva. Sadržaj teških metala u svim analiziranim neorganskim đubrivima je ispod MDK po važećem Pravilniku, a u uzorcima supstrata, koji se svrstavaju u organska đubriva, izmerena je povišena koncetracija Ni (2 uzorka) i Cr (1 uzorak). Prosečan (teorijski) unos teških metala u zemljište u Srbiji pod pretpostavkom da se godišnje po hektaru primeni 20 kg P2O5 niži je od evropskog proseka i blizak je podacima za Finsku i Dansku.