Radiation Dose measured at exhaust stack monitor of Fukushima Daiichi Nuclear Power Station

○Information

○Measurement value list ： 2026/06/20(CSV Download)

Stack Unit：cps　Wind Velocity Unit：m/s

※"-": the wind velocity is below 0.5m/s

Time	Unit 5,6 joint stack	Wind Direction	Wind Velocity
00:00	3.6	-	CALM
00:10	3.6	-	CALM
00:20	3.7	south	1.1
00:30	3.8	south	1.2
00:40	3.4	south-southwest	0.6
00:50	3.6	-	CALM
01:00	3.6	-	CALM
01:10	3.5	-	CALM
01:20	3.4	-	CALM
01:30	3.6	-	CALM
01:40	3.6	-	CALM
01:50	3.6	-	CALM
02:00	3.6	-	CALM
02:10	3.5	south	0.7
02:20	3.7	south-southwest	0.6
02:30	3.6	south-southeast	0.6
02:40	3.6	-	CALM
02:50	3.4	-	CALM
03:00	3.6	southeast	0.6
03:10	3.3	-	CALM
03:20	3.6	east-southeast	1.0
03:30	3.5	southeast	0.8
03:40	3.5	southeast	0.9
03:50	3.5	southeast	1.0
04:00	3.6	southeast	1.1
04:10	3.6	south-southeast	1.6
04:20	3.6	southeast	1.7
04:30	3.7	southeast	1.9
04:40	3.4	south	1.1
04:50	3.4	south-southeast	0.6
05:00	3.6	south-southeast	1.1
05:10	3.6	southeast	1.5
05:20	3.5	southeast	1.6
05:30	3.5	southeast	1.5
05:40	3.6	southeast	2.0
05:50	3.6	southeast	1.4
06:00	3.6	south-southeast	1.2
06:10	3.6	southeast	1.1
06:20	3.5	southeast	1.4
06:30	3.4	southeast	1.2
06:40	3.5	east-southeast	1.6
06:50	3.5	south-southeast	1.7
07:00	3.5	southeast	1.5
07:10	3.7	south-southeast	1.3
07:20	3.6	southeast	1.6
07:30	3.5	east-southeast	1.8
07:40	3.7	east-southeast	2.4
07:50	3.6	east-southeast	2.5
08:00	3.5	east-southeast	2.4
08:10	3.4	east-southeast	2.1
08:20	3.5	east-southeast	2.6
08:30	3.7	east-southeast	2.0
08:40	3.6	east-southeast	2.4
08:50	3.5	southeast	2.3
09:00	3.6	east-southeast	2.2
09:10	3.6	east-southeast	2.5
09:20	3.5	east-southeast	1.5
09:30	3.6	east	1.9
09:40	3.6	east	1.7
09:50	3.6	east	2.0
10:00	3.4	east	2.1
10:10	3.8	east	2.0
10:20	3.7	southeast	2.0
10:30	3.7	southeast	1.9
10:40	3.5	east-southeast	2.6
10:50	3.5	east-southeast	2.6
11:00	3.6	southeast	2.1
11:10	3.6	southeast	2.3
11:20	3.6	southeast	2.0
11:30	3.4	southeast	2.5
11:40	3.6	southeast	2.4
11:50	3.6	southeast	1.8
12:00	3.6	southeast	2.6
12:10	3.6	east-southeast	2.3
12:20	3.5	east-southeast	2.9
12:30	3.8	east	3.1
12:40	3.4	east-southeast	2.5
12:50	3.4	east-southeast	2.8
13:00	3.6	east-southeast	2.9
13:10	3.5	east-southeast	3.3
13:20	3.6	east-southeast	2.5
13:30	3.6	east	2.0
13:40	3.5	east-southeast	1.8
13:50	3.4	east-southeast	2.3
14:00	3.6	east-southeast	2.4
14:10	3.7	east	2.5
14:20	3.6	east	2.6
14:30	3.7	east	2.3
14:40	3.7	east	1.7
14:50	3.6	south-southeast	1.3
15:00	3.6	southeast	1.5
15:10	3.5	southeast	1.5
15:20	3.5	east-southeast	1.4
15:30	3.5	south-southeast	1.3
15:40	3.6	south-southeast	1.8
15:50	3.7	south-southeast	1.9
16:00	3.5	south-southeast	2.1
16:10	3.5	southeast	2.0
16:20	3.5	southeast	1.9
16:30	3.6	southeast	2.3
16:40	3.5	southeast	3.0
16:50	3.6	south-southeast	3.7
17:00	3.5	south-southeast	3.9
17:10	3.5	south-southeast	3.1
17:20	3.5	southeast	3.3
17:30	3.5	southeast	3.6
17:40	3.4	southeast	4.1
17:50	3.6	south-southeast	4.3
18:00	3.7	southeast	4.7
18:10	3.5	south-southeast	4.6
18:20	3.7	southeast	4.6
18:30	3.6	southeast	5.4
18:40	3.6	south-southeast	5.1
18:50	3.6	south-southeast	4.5
19:00	3.3	south-southeast	4.5
19:10	3.3	south-southeast	4.3
19:20	3.4	south-southeast	5.4
19:30	3.6	south-southeast	6.1
19:40	3.4	south-southeast	6.0
19:50	3.6	south-southeast	5.3
20:00	3.6	south-southeast	5.8
20:10	3.5	south-southeast	6.3
20:20	3.4	south-southeast	6.3
20:30	3.6	south-southeast	4.9
20:40	3.4	southeast	5.0
20:50	3.6	south-southeast	5.0
21:00	3.5	south-southeast	5.8
21:10	3.8	south-southeast	6.6
21:20	3.7	southeast	7.7
21:30	3.5	southeast	7.4
21:40	3.4	south-southeast	7.4
21:50	3.7	south-southeast	7.1
22:00	3.6	south-southeast	6.6
22:10	3.5	southeast	7.2
22:20	3.5	southeast	6.4
22:30	3.7	southeast	6.6
22:40	3.6	southeast	6.4
22:50	3.8	south-southeast	6.0
23:00	3.5	southeast	5.7
23:10	3.5	south-southeast	4.8
23:20	3.6	south-southeast	5.3
23:30	3.5	south-southeast	5.6
23:40	3.6	south-southeast	6.9
23:50	3.5	south-southeast	6.7