Table 2: Total antioxidants level in U. dioica sampled from two different areas obtained with FRAP assay (in mol FeSO4 L−1).

Plant organ investigatedFRAP values

Location (unpolluted area) Plačkovica Mountain

U. dioica leaves Plačkovica4845.5 ± 7.3
U. dioica leaves Veles1849.6 ± 2.5

Location (polluted area) Veles

U. dioica stems Plačkovica961 ± 1.9
U. dioica stems Veles640 ± 1.1