The equilibrium adsorption of vapors of benzene, toluene, o-xylene, and gasoline in the temperature range 25-100°C and adsorbate content of 0.01-1.80 vol % on activated carbons obtained from plum stones and shells of peanut, walnut, and coconut was studied. The effect of temperature on the adsorption properties of the absorbents were analyzed. The isosteric heats of adsorption were calculated.