The Investigation And Research Of Regular Pattern Of The Geogas Radon Release In City

With the development of the city progress, our construction ordistruction of the environment has restrained a great deal of geogason the ground, such as Rn,CH₄,CO₂,CO,Hg,He,H₂S,and so on. whichmicrocosmically and continually effect city environment, they can begiven out through surface, made the concentration of the geogas in someplace abnormally. Even cause serious incident, which effect this area'squality of the environment and the safety of the local resident.This thesis exemplify chengdu, and investigating the concentrationof different areas.It compare with each other, and gain the regular of thegeogas in chengdu.As for montanic city, the reason why radon abnormally isvarious.but even more important is the effect of faultage and coast,whichbring about geogas.this thesis demonstrate it by exemplifying kangding.In the bare area of the city, we discover that some gases iscongregated in the soil.we can jump to conclusion that every similarelement can be released through bare area.in our point of view, bare area isthe hinge of the entrigeochemical.hence,in order to essure the quality ofthe environment. We must program and construct our surface reasonably!...