Environmental Health and Preventive Medicine

Table 1 Results of radiation measurements at 100 cm above the ground surface in lecture rooms and laboratories at our educational institution in Fukushima

From: An assessment of radiation doses at an educational institution 57.8 km away from the Fukushima Daiichi nuclear power plant 1 month after the nuclear accident

Measured sites	Radiation dose rate (μSv/h)				Count rate (cpm)
Measured sites	Maximum	Minimum	Mean	SD	Maximum	Minimum	Mean	SD
1st Floor
1-A (n = 5)	0.10	0.07	0.08	0.01	99	53	79	18
1-B (n = 5)	0.08	0.06	0.07	0.01	74	60	64	6
1-C (n = 5)	0.24	0.13	0.16	0.05	93	70	79	9
2nd Floor
2-A (n = 5)	0.14	0.07	0.10	0.03	104	84	92	8
2-B (n = 5)	0.11	0.06	0.09	0.02	100	79	89	8
2-C (n = 5)	0.11	0.07	0.09	0.02	89	69	79	8
2-D (n = 5)	0.12	0.08	0.10	0.01	80	60	71	8
2-E (n = 5)	0.14	0.08	0.11	0.02	91	60	79	12
3rd Floor
3-A (n = 5)	0.12	0.06	0.08	0.03	93	52	73	17
3-B (n = 5)	0.14	0.09	0.11	0.02	97	79	87	8
3-C (n = 5)	0.15	0.10	0.12	0.02	95	66	80	11
4th Floor
4-A (n = 5)	0.10	0.05	0.07	0.02	88	69	78	9
4-B (n = 5)	0.12	0.09	0.10	0.01	86	62	74	10
5th Floor
5-A (n = 5)	0.10	0.05	0.07	0.02	86	67	75	7
Mean ± SD	0.10 ± 0.03				79 ± 12
p value*	p = 0.185				p = 0.236

* p Values for comparison of means by floor height calculated by one-way analysis of variance test

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