IMPACT OF HIGHWAY TRAFFIC ON MILK CONTAMINATION WITH HEAVY METALS

Bardhyl LIMANI, Vesna KARAPETKOVSKA - HRISTOVA, Julijana TOMOVSKA, Hirijete IDRIZI, Bardha IBISHI, Hazir POLLOZHANI

Abstract

These days, food safety and traceability control during the production of milk and dairy products is becoming a key criterion for consumers due to new requirements for the prevention of various diseases. In this experiment, samples of raw cow's milk were collected from dairy farms stationed near highways and in rural farms in the Polog Region. Concentrations of selected heavy metals such as Cu and Mn were determined by Agilent 55A flame atomic absorption spectroscopy and Agilent 240Z graphite atomic absorption spectroscopy for Cd, Pb, Ni, Zn was used. The content of cadmium and lead showed higher concentrations in milk samples from areas with intense traffic than in milk from unpolluted green areas. The obtained results confirm that attention must be paid to circumstances that come to have a continuous emission of heavy metals into the environment.

Pages: 38 - 43