Radiological indices

Median

Maximum

Minimum

Typical World Value

Radium Equivalent Activity (Ra_eq) Bq/kg

114.563

458.300

30.300

370 Bq/kg

Absorbed Dose rate (D) nGy·h⁻¹

51.296

202.800

13.900

57 nGyh⁻¹

Annual Effective Dose (E) mSv·y⁻¹

0.062

0.240

0.017

1 mSv/yr.

External Radiation Hazard Index (H_ex)

0.309

1.230

0.080

1

Criteria formula (CF)

0.154

0.600

0.040

1

Gamma radiation hazard index

0.806

3.194

0.222

1

Excess lifetime cancer risk

0.235

0.932

0.063

0.290

Annual Gonadal equivalent dose (µSv·y⁻¹)

347.878

1365.208

96.366

600

Activity Utilization Index

0.949

3.869

0.206

2