The activity concentrations of radionuclides 226Ra, 232Th and 40K of soil samples in the case of Metekel Zone, Ethiopia

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Table 1

The measured concentrations (Bq kg⁻¹) of ²²⁶Ra, ²³²Th and ⁴⁰K in selected soil samples according to different districts in Metekel and types.

	²²⁶Ra			²³²Th			⁴⁰K
	Minimum	Maximum	Mean	Minimum	Maximum	Mean	Minimum	Maximum	Mean
Districts
Guba	15 ± 1	90 ± 10	60 ± 15	22 ± 4	59 ± 15	43 ± 16	230 ± 5	450 ± 20	290 ± 100
Dangur	23 ± 2	110 ± 12	70 ± 18	30 ± 4	70 ± 9	52 ± 11	170 ± 7	600 ± 28	324 ± 150
Pawe	32 ± 2	105 ± 9	69 ± 23	33 ± 5	120 ± 4	64 ± 19	109 ± 4	509 ± 27	340 ± 150
Mandura	17 ± 1	87 ± 3	40 ± 21	27 ± 1	106 ± 5	77 ± 11	178 ± 2	480 ± 35	274 ± 120
Wenbera	16 ± 2	89 ± 4	42 ± 18	33 ± 1	148 ± 12	84 ± 25	249 ± 7	478 ± 13	365 ± 70
Bulen	30 ± 1	140 ± 2	73 ± 11	52 ± 4	94 ± 3	79 ± 23	274 ± 3	698 ± 23	468 ± 170
Dibate	19 ± 1	103 ± 3	55 ± 15	41 ± 8	86 ± 1	69 ± 18	154 ± 6	396 ± 2	209 ± 60
Types
Sandy loam	10 ± 1	77 ± 2	49 ± 20	26 ± 4	60 ± 1	42 ± 16	120 ± 5	540 ± 28	309 ± 120
Sands	30 ± 2	100 ± 10	76 ± 21	42 ± 4	87 ± 5	62 ± 10	115 ± 8	529 ± 25	298 ± 120
Silt	42 ± 2	118 ± 9	78 ± 21	40 ± 5	167 ± 4	90 ± 19	129 ± 4	429 ± 27	290 ± 110
Clay	27 ± 1	107 ± 3	67 ± 21	47 ± 1	136 ± 5	87 ± 11	188 ± 2	389 ± 35	244 ± 50
Silty clay	36 ± 2	139 ± 4	93 ± 18	59 ± 1	118 ± 12	81 ± 25	160 ± 7	378 ± 13	265 ± 70
Clay loam	40 ± 1	146 ± 2	82 ± 16	48 ± 4	104 ± 3	76 ± 28	94 ± 3	391 ± 12	320 ± 120

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