Table 3. Mean concentration (Bq/kg, wet weight) of radionuclides around the uranium mines in China, 2012−2019.

Food	No. of samples	238U mean (95%CI)	228Ra mean (95%CI)	226Ra mean (95%CI)	40K mean (95%CI)	137Cs mean (95%CI)
Note: “–” means not detected.
Milk and dairy products	250	2.99 (2.60−3.38)	0.55 (0.49−0.61)	1.22 (1.00−1.44)	268.00 (253.74−282.26)	1.18 (0.87−1.49)
Vegetables	590	0.99 (0.86−1.12)	0.25 (0.22−0.28)	0.76 (0.39−1.13)	94.60 (85.08−104.12)	0.17 (0.13−0.21)
Tea	156	4.18 (3.37−4.99)	2.22 (1.80−2.64)	1.30 (1.10−1.50)	405.00 (369.38−440.62)	0.46 (0.38−0.54)
Cereal	447	1.88 (1.62−2.14)	0.45 (0.39−0.51)	0.70 (0.60−0.80)	143.00 (126.68−159.32)	0.40 (0.33−0.47)
Livestock and poultry meat	280	1.39 (1.09−1.67)	0.65 (0.50−0.80)	0.60 (0.53−0.67)	137.00 (104.09−169.91)	0.47 (0.36−0.58)
Fish and seafood	27	0.58 (0.38−0.78)	0.65 (0.30−1.00)	0.58 (0.36−0.80)	71.40 (59.00−83.81)	0.05 (0.04−0.06)
Seaweed	2	1.91	2.38 (1.26−3.50)	0.78 (0.41−1.15)	15.0	−