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目的了解西安市室内氡浓度水平。方法采用Model 1027连续测氡仪对西安市三环内室内氡浓度水平进行监测。室内氡浓度监测共选取西安市三环内样本数92个,每个采样点选取2~3个监测点,并且对监测点连续监测1 h,所有监测点的平均值即为该点的氡浓度水平。结果西安市三环内室内氡浓度范围为3.70~525.40 Bq/m3,算术平均值为89.93 Bq/m3。冬季室内氡浓度水平高于春季。结论除网吧外,西安室内空气氡浓度在国家规定范围之内,网吧室内氡浓度普遍偏高。
Objective To understand the indoor radon concentration in Xi’an. Methods Indoor radon concentration in the third ring of Xi’an was monitored by Model 1027 continuous radon detector. Indoor radon concentration monitoring A total of 92 samples were selected from the third tricyclic ring in Xi’an city. Two or three monitoring points were selected for each sampling point. The monitoring points were continuously monitored for 1 hour. The average of all monitoring points was the radon concentration Level. Results Indoor radon concentration in the third ring of Xi’an City ranged from 3.70 to 525.40 Bq / m3 with an arithmetic average of 89.93 Bq / m3. Indoor winter radon concentration levels higher than the spring. Conclusion In addition to Internet cafes, indoor air radon concentration in Xi’an within the scope of the state regulations, indoor radon concentration is generally high.