Table 3 Results of radium equivalent, outdoor/indoor hazard index, and external/internal hazard index calculations of the investigated BSS samples.
Sample code | Sample ID | \(D_{in}\) (nGy h\(^{-1}\)) | \(E_{in}\) (mSv y\(^{-1}\)) | \(D_{out}\) (nGy h\(^{-1}\)) | \(E_{out}\) (mSv y\(^{-1}\)) | \(Ra_{eq}\) (Bq Kg\(^{-1}\)) | \(H_{in}\) | \(H_{ex}\) |
|---|---|---|---|---|---|---|---|---|
SS-1 | Ore (1) | 311.39 | 1.53 | 164.88 | 0.20 | 374.95 | 1.38 | 1.01 |
SS-2 | Ore (2) | 320.99 | 1.570 | 170.42 | 0.21 | 388.64 | 1.400 | 1.050 |
SS-3 | Garnite | 854.50 | 4.19 | 457.33 | 0.56 | 1054.69 | 3.57 | 2.85 |
SS-4 | Ilmenite | 608.91 | 2.99 | 326.42 | 0.40 | 754.37 | 2.52 | 2.04 |
SS-5 | Magnetite | 188.15 | 0.92 | 99.69 | 0.12 | 227.05 | 0.83 | 0.61 |
SS-6 | Sillica | 1176.74 | 5.77 | 630.87 | 0.77 | 1459.23 | 4.89 | 3.94 |
SS-7 | Rutile (1) | 6909.26 | 33.89 | 3650.41 | 4.48 | 8325.54 | 31.42 | 22.49 |
SS-8 | Rutile (2) | 9094.07 | 44.61 | 4780.15 | 5.86 | 10848.40 | 42.62 | 29.30 |
SS-9 | Zirrcon | 6089.02 | 29.87 | 3144.88 | 3.86 | 7011.12 | 31.35 | 18.94 |
SS-10 | Monazite product (1) | 10209.13 | 50.08 | 5492.15 | 6.74 | 12745.91 | 41.45 | 34.42 |
SS-11 | Monazite product (2) | 13878.10 | 68.08 | 7504.19 | 9.20 | 17505.65 | 54.48 | 47.27 |
SS-12 | Monazite product (3) | 9310.97 | 45.68 | 4975.82 | 6.10 | 11476.93 | 39.51 | 31.00 |
WS-13 | Wast lake water | 120.29 | 0.59 | 64.63 | 0.08 | 149.57 | 0.49 | 0.40 |
WS-14 | Supply lake water | 44.52 | 0.22 | 23.45 | 0.03 | 52.96 | 0.20 | 0.14 |
WS-15 | Shaking tables water(1) | 126.66 | 0.62 | 65.42 | 0.08 | 145.54 | 0.65 | 0.39 |
WS-16 | Shaking tables water (2) | 153.96 | 0.76 | 79.53 | 0.10 | 176.03 | 0.78 | 0.48 |
The recommended safe maximum limits65 | – | 1 | – | 1 | 370 | 1 | 1 | |
