Analysis of heavy metals content of soil and Vitis Vinifera in two vineyard areas of the Caras-Severin County, Romania

Heavy metal pollution of agricultural soils is a major environmental problem that can
affect agriculture, food quality and human health. samples from vineyard soils in locations (Tirol
and Moldova Noua) situated in the Caras-Severin County, Romania, and corresponding samples
of Vitis vinifera were analysed for the following heavy metals contents: Mn, cu, Fe, Zn, Pb, ni,
Cr(VI) and Cd. The concentration of heavy metals was measured using a flame atomic absorption
spectrometer, in conventionally cultivated soils from vineyards and in aerial parts of Vitis vinifera. the average content of heavy metals in soils from the tirol vineyard decreased in the order:
Fe > Mn > cu > Zn > Pb > ni > cr > cd, and in the case of private vineyards from Moldova Noua
area, in the following order: Fe ≈ Mn > Zn > Cu > Pb > Ni > Cr >Cd. The average content of heavy
metals in aerial parts of vines (Vitis vinifera) samples decreases in this way: Fe > Zn > Mn > Pb >
Cu > Ni > Cd > Cr (Tirol) and Fe > Zn > Cu > Mn > Ni > Pb > Cd > Cr (Moldova Noua area).The
metal accumulation in aerial tissue of Vitis vinifera was established by transfer factor. surprisingly,
the transfer factor is higher in the tirol vineyard than in Moldova Noua area. these results indicate
that the bioavailability of Vitis vinifera to heavy metals depends on other factors besides the metal
concentration of heavy metals in soil.