Comparison of Application Effects of Three Kinds of Soil Gases in Oil Depot Pollution Investigation
Aiming at the problems of unclear appli-cation effect of soil gas survey technology in oil depot contaminated sites and lack of comparative analysis among different types of soil gases,three typical soil gases,VOCs,CO2 and HCHO,were selected to com-pare the application effects of these three soil gases in oil depot sites from three aspects:rapid pollution de-lineation,vertical pollution characterization and min-imum detection depth. The results showed that VOCs and HCHO could quickly delineate or narrow the scope of the contaminated area to be investigated,and the subsequent detection could be strengthened. VOCs can effectively indicate the vertical pollution change of the site,and HCHO can determine the depth range of high pollution value. Under the condition of the site,the detection depth of VOCs about 0.5 m underground can realize the identification of underground pollution. CO2 did not play a positive role in all three applica-tions,and subsequent detection can be reduced.
万方数据
维普
