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

○Information

○Measurement value list ： 2026/05/28(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	3.7	-	CALM
00:20	3.6	south-southeast	0.8
00:30	3.6	south-southeast	1.1
00:40	3.5	south-southeast	1.3
00:50	3.7	southeast	1.4
01:00	3.7	south-southeast	1.3
01:10	3.6	-	CALM
01:20	3.5	-	CALM
01:30	3.4	-	CALM
01:40	3.6	south-southeast	2.1
01:50	3.5	south-southeast	1.9
02:00	3.7	south-southeast	1.8
02:10	3.7	south	1.5
02:20	3.5	south	1.0
02:30	3.6	south	1.1
02:40	3.5	south	1.8
02:50	3.7	south	1.6
03:00	3.6	south-southwest	1.3
03:10	3.6	south	1.6
03:20	3.4	south-southeast	1.9
03:30	3.4	south	1.4
03:40	3.4	south-southwest	1.1
03:50	3.6	-	CALM
04:00	3.5	-	CALM
04:10	3.5	south-southwest	0.8
04:20	3.5	south	1.6
04:30	3.4	south-southeast	1.8
04:40	3.5	south	2.0
04:50	3.7	south-southwest	2.0
05:00	3.6	south	1.7
05:10	3.7	south-southwest	1.0
05:20	3.5	southwest	0.8
05:30	3.6	south-southeast	0.7
05:40	3.6	south	0.8
05:50	3.5	south-southeast	1.1
06:00	3.7	south-southeast	1.3
06:10	3.7	south-southeast	1.7
06:20	3.7	south-southeast	1.8
06:30	3.5	south	1.4
06:40	3.6	south-southwest	1.2
06:50	3.6	southwest	1.8
07:00	3.6	south-southeast	0.8
07:10	3.4	south	1.6
07:20	3.5	south-southeast	1.9
07:30	3.5	south-southeast	2.3
07:40	3.6	south-southeast	3.1
07:50	3.5	south-southeast	3.9
08:00	3.7	south-southeast	3.1
08:10	3.5	south-southeast	2.2
08:20	3.5	southeast	2.7
08:30	3.6	south-southeast	2.5
08:40	3.5	southeast	2.1
08:50	3.7	south-southeast	3.1
09:00	3.6	south-southeast	3.0
09:10	3.6	south-southeast	4.4
09:20	3.6	south-southeast	5.4
09:30	3.4	south-southeast	4.9
09:40	3.6	south	5.3
09:50	3.5	south	5.7
10:00	3.3	south-southeast	5.9
10:10	3.6	south-southeast	5.7
10:20	3.6	south-southeast	8.0
10:30	3.6	south-southeast	7.0
10:40	3.6	south-southeast	7.9
10:50	3.7	southeast	7.1
11:00	3.6	south-southeast	7.3
11:10	3.7	south-southeast	9.3
11:20	3.8	south-southeast	8.0
11:30	3.7	south-southeast	7.6
11:40	3.6	south-southeast	10.1
11:50	3.8	south-southeast	10.6
12:00	3.5	south-southeast	9.2
12:10	3.6	south-southeast	9.7
12:20	3.5	southeast	9.8
12:30	3.7	south-southeast	10.1
12:40	3.6	south-southeast	10.9
12:50	3.4	south-southeast	9.9
13:00	3.7	south-southeast	9.6
13:10	3.5	south-southeast	10.4
13:20	3.5	south-southeast	9.2
13:30	3.5	south-southeast	8.8
13:40	3.6	south-southeast	8.1
13:50	3.8	south-southeast	8.9
14:00	3.5	south-southeast	9.1
14:10	3.6	south-southeast	9.9
14:20	3.6	south	9.3
14:30	3.5	south	7.7
14:40	3.5	south	9.6
14:50	3.5	south	8.3
15:00	3.6	south	9.1
15:10	3.7	south	8.5
15:20	3.5	south	9.0
15:30	3.6	south	8.3
15:40	3.7	south-southeast	7.3
15:50	3.7	south-southeast	7.3
16:00	3.6	south	6.5
16:10	3.6	south	7.4
16:20	3.8	south	4.6
16:30	3.6	south	5.0
16:40	3.6	south-southeast	6.0
16:50	3.8	south-southeast	7.5
17:00	3.7	south-southeast	7.1
17:10	3.6	south	6.4
17:20	3.7	south	5.9
17:30	3.7	south	6.4
17:40	3.6	south-southeast	5.1
17:50	3.6	south-southeast	5.1
18:00	3.5	south-southeast	5.2
18:10	3.7	south-southeast	5.9
18:20	3.5	south	5.6
18:30	3.5	south-southeast	6.3
18:40	3.8	south	5.9
18:50	3.7	south-southeast	5.7
19:00	3.6	south-southeast	5.4
19:10	3.6	south-southeast	4.7
19:20	3.9	south-southeast	4.8
19:30	3.6	south-southeast	4.7
19:40	3.6	south	4.0
19:50	3.6	south	3.8
20:00	3.6	south	3.7
20:10	3.7	south-southeast	4.2
20:20	3.5	south-southeast	4.4
20:30	3.7	south-southeast	4.5
20:40	3.7	south-southeast	2.4
20:50	3.5	south	1.9
21:00	3.6	south-southwest	2.2
21:10	3.4	south-southwest	3.2
21:20	3.7	south-southwest	1.9
21:30	3.6	south-southwest	1.6
21:40	3.7	south	2.5
21:50	3.5	south	2.5
22:00	3.6	south-southwest	2.4
22:10	3.7	west	1.7
22:20	3.6	west	2.0
22:30	3.6	west-northwest	3.0
22:40	3.5	west	1.4
22:50	3.5	-	CALM
23:00	3.6	northeast	0.6
23:10	3.8	west	0.9
23:20	3.6	-	CALM
23:30	3.6	-	CALM
23:40	3.6	-	CALM
23:50	3.7	-	CALM