Measurement of indoor radon levels in workplace using solid state nuclear track detectors "SSNTD"

Abstract EN

Indoor radon concentration measurement survey has been carried out in workplace of kafori campus of Alzaiem Alazhari university using solid state nuclear track detectors (SSNTD) type Radon alpha-C.

The radon concentration determined and estimate an annual effective dose and working level month.

The radon concentration levels varied from 260 ± 23 to 593 ± 36 Bq/m3 and average value around between 393.50 for first floor to 471.60 for second floor.

An annual effective dose found in varies value from 6.559 to 14.961 mSv.y-1 with mean value 10.637±1.097 mSv.y-1.

The radon concentration values and annual effective dose values in some samples are higher than the values of the reference value range, higher values may find nearest permissible range, where radon levels were varied in the building floors in order high level second floor, ground floor and first floor.