大庆地区土壤环境放射性本底及现状水平调查与评价

人工放射源在石油勘探、开采等方面得到广泛应用，放射性核素可通过多种途径污染土壤环境。大庆油田有13个单位应用放射性物质（非密封源或密封源）。为了对大庆油田地区的土壤放射性状况进行较全面的调查，因此对土壤放射性本底、现状水平及放射源周围土壤放射性强度进行了监测，采集样品200多个，总α的测定采用饱和厚度法，总β的测定采用有效厚度法，监测结果说明原油开采应用放射性物质对土壤环境未造成不良影响。

Radioactivity background of soil environment and status investigation in Daqing region

Artificial radioactivity sources are widely applied to petroleum exploration and development and probably in ways of preventing pollution in soil environment. Thirteen sub-units of Daqing Petroleum Administration are the users of non-sealing or sealing radioactive material. Authors monitored the radioactivity background,status and radio intensity of the soil around the source,and collected samples of more than200. The saturated method is for total α measurement,while the thickness method is fortotal β measurement. The monitoring results indicate that the application of radioelements does not pollute the soil environment obviously.