Table 1. The active concentrations (AC) of radionuclides and the annual dose rate (2015) at the experimental sites.

Experimental site	Depth, cm	AC of 137Cs in soil	AC of 137Cs in cones	AC of 90Sr in cones	Annual dose rate, mGy∙yr−1
		Bq∙kg−1
RefRF	0–5	13.2 ± 2.6	4.2 ± 2	1.1 ± 2.3	0.02
	5–10	16.2 ± 2.8
Ref1RF	0–5	156 ± 19.8	12.6 ± 3.8	0.8 ± 1.3	0.23
	5–10	127 ± 12.2
VIUARF	0–5	10800 ± 810	207 ± 26	11.3 ± 2.4	10.0
	5–10	778 ± 65
	10–15	417 ± 33
SBRF	0–5	13000 ± 1580	302 ± 39	35.9 ± 4.4	19.4
	5–10	12200 ± 1480
	10–15	653 ± 80
Z1RF	0–5	35600 ± 2992	2170 ± 266	43.2 ± 2.8	33.1
	5–10	4350 ± 405
	10–15	1120 ± 136
Z2RF	0–5	46200 ± 3243	1420 ± 176	48.7 ± 3.7	38.6
	5–10	4890 ± 340
	10–15	1460 ± 117
KozhRB	0–5	3142 ± 33	3200 ± 380	6295 ± 53	18.0
	5–10	865 ± 17
	10–15	296 ± 9
MasRB	0–5	66300 ± 820	5470 ± 666	1050 ± 12.6	50.9
	5–10	12900 ± 200
	10–15	2680 ± 33
KulRB	0–5	41700 ± 330	14000 ± 1700	4246 ± 40	66.6
	5–10	3823 ± 71
	10–15	1358 ± 29

^RFRussian Federation; ^RBRepublic of Belarus.