The development of a rapid direct in-field investigation method of metal pollution, using magnetic susceptibility and field XRF, which allows the easy characterization of agricultural land contamination in the above-mentioned basins. Farmers need access to cheap methods for a quick assessment of their problems, but at the same time to safe methods from an analytical point of view by calibrating them on Romanian soils. We do the calibration not only by working in the field, but also by using our bases of soil samples already analyzed by established methods.