STUDY ON DIGITAL SOIL RN OBSERVATION DATA OF PUYANG SEISMIC STATION

Digital soil Rn observation data recorded using SD-3A instrument in Puyang seismic station are studied.The result shows that:soil radon gas-collecting device have a great influence to observation result. The gas-collecting device was reformed to solve the existing problems.After reforming, the quantity of the observation data is greatly improved.There is a negative correlation between observations of soil radon and air pressure.