Dielectric and Radio-Emission Properties of Oil-Polluted Soils

The results of laboratory measurements of dielectric properties of oil-polluted sandy, clayey, and saline soils at variations of volume humidity and temperature in the range between 260 and 300 K at 1.41-GHz frequency are given. It is shown that dielectric and radio-emission properties of dry sand and oil within the error are temperature independent in the range from 260 to 315 K. The influence of oil on the microwave emission of soils is observed when volume humidity exceeds the maximum amount of bound water. The occurrence of oil additives in the soil leads to variations in dielectric and radio-emission properties of soils due to the change of the phase composition of soil moisture. Oil pollution of saline soils causes a dramatic change in their dielectric and radio-emission properties. Dielectric properties of the saline soils with the addition of oil in the range of positive temperatures depend on the ratio between humidity and soil salinity.