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

○Information

○Measurement value list ： 2026/06/24(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	3.5	west-southwest	0.7
00:10	3.6	west	0.6
00:20	3.7	west-southwest	0.9
00:30	3.5	southwest	1.4
00:40	3.5	south-southwest	1.8
00:50	3.7	southwest	1.5
01:00	3.5	southwest	1.2
01:10	3.7	southwest	1.2
01:20	3.5	south-southwest	1.5
01:30	3.5	southwest	2.1
01:40	3.6	southwest	1.6
01:50	3.6	south-southwest	1.4
02:00	3.4	southwest	1.0
02:10	3.7	southwest	1.1
02:20	3.6	southwest	1.2
02:30	3.7	southwest	1.6
02:40	3.7	southwest	1.3
02:50	3.6	southwest	1.3
03:00	3.5	southwest	0.8
03:10	3.5	-	CALM
03:20	3.4	south-southwest	0.7
03:30	3.6	south-southwest	0.7
03:40	3.5	-	CALM
03:50	3.5	-	CALM
04:00	3.6	-	CALM
04:10	3.6	-	CALM
04:20	3.6	-	CALM
04:30	3.6	-	CALM
04:40	3.5	-	CALM
04:50	3.6	-	CALM
05:00	3.5	-	CALM
05:10	3.6	west	0.6
05:20	3.5	northwest	1.1
05:30	3.5	north-northwest	0.9
05:40	3.6	north-northwest	0.9
05:50	3.6	northwest	2.0
06:00	3.6	northwest	2.4
06:10	3.4	northwest	2.6
06:20	3.6	northwest	2.5
06:30	3.5	north-northwest	1.1
06:40	3.5	-	CALM
06:50	3.5	-	CALM
07:00	3.6	-	CALM
07:10	3.6	-	CALM
07:20	3.7	south-southwest	0.8
07:30	3.6	east	1.1
07:40	3.6	east-southeast	0.7
07:50	3.6	east-northeast	1.4
08:00	3.6	east-northeast	1.3
08:10	3.7	east-northeast	1.9
08:20	3.6	east-northeast	1.6
08:30	3.7	east-northeast	2.0
08:40	3.5	northeast	2.5
08:50	3.5	east-northeast	1.8
09:00	3.5	east-northeast	1.8
09:10	3.6	east	3.0
09:20	3.5	east	2.3
09:30	3.7	east-northeast	2.6
09:40	3.8	east	2.8
09:50	3.6	east-southeast	2.8
10:00	3.5	east-southeast	3.1
10:10	3.5	east	3.0
10:20	3.6	east	3.1
10:30	3.4	east-southeast	2.9
10:40	3.4	east-southeast	2.4
10:50	3.5	east	3.5
11:00	3.7	east-southeast	3.5
11:10	3.6	southeast	3.3
11:20	3.7	southeast	3.2
11:30	3.7	east-southeast	3.9
11:40	3.5	southeast	3.3
11:50	3.6	east-southeast	3.5
12:00	3.5	east-southeast	3.1
12:10	3.5	east	3.1
12:20	3.5	southeast	3.5
12:30	3.5	southeast	2.4
12:40	3.5	east-southeast	2.9
12:50	3.6	southeast	3.0
13:00	3.5	east-southeast	3.2
13:10	3.6	southeast	3.2
13:20	3.5	east-southeast	3.9
13:30	3.7	east-southeast	4.3
13:40	3.7	east-southeast	3.9
13:50	3.6	east-southeast	3.9
14:00	3.6	east-southeast	4.0
14:10	3.5	southeast	3.2
14:20	3.5	southeast	3.0
14:30	3.5	east	3.9
14:40	3.4	east-southeast	2.6
14:50	3.4	east-southeast	3.9
15:00	3.4	east-southeast	3.3
15:10	3.6	east	3.6
15:20	3.6	east-southeast	3.4
15:30	3.6	east-southeast	3.0
15:40	3.6	east-southeast	2.8
15:50	3.5	east-southeast	3.5
16:00	3.6	east-southeast	4.0
16:10	3.6	southeast	3.2
16:20	3.8	east-southeast	3.7
16:30	3.5	southeast	3.6
16:40	3.6	southeast	3.7
16:50	3.5	southeast	3.3
17:00	3.5	southeast	3.3
17:10	3.5	southeast	3.1
17:20	3.6	southeast	3.0
17:30	3.6	southeast	2.8
17:40	3.6	southeast	3.1
17:50	3.6	southeast	3.0
18:00	3.6	south-southeast	3.1
18:10	3.6	southeast	3.0
18:20	3.5	south-southeast	3.2
18:30	3.6	south-southeast	2.3
18:40	3.5	south-southeast	2.6
18:50	3.5	south-southeast	2.6
19:00	3.5	south-southeast	3.0
19:10	3.5	south-southeast	3.3
19:20	3.5	south-southeast	3.3
19:30	3.5	south-southeast	3.3
19:40	3.6	southeast	2.8
19:50	3.5	southeast	2.6
20:00	3.6	south-southeast	2.8
20:10	3.5	southeast	2.6
20:20	3.5	south-southeast	2.9
20:30	3.4	south-southeast	3.0
20:40	3.6	south	2.3
20:50	3.5	south-southeast	2.7
21:00	3.6	south-southeast	2.7
21:10	3.6	south	3.0
21:20	3.5	south-southeast	2.2
21:30	3.6	south	1.5
21:40	3.5	south	2.0
21:50	3.6	south-southeast	2.0
22:00	3.5	south-southeast	2.0
22:10	3.5	south-southeast	2.3
22:20	3.5	south-southeast	2.6
22:30	3.5	south-southeast	2.2
22:40	3.5	south-southeast	2.0
22:50	3.4	south-southeast	1.7
23:00	3.4	south-southeast	1.8
23:10	3.5	south-southeast	1.2
23:20	3.4	south-southeast	1.5
23:30	3.5	south-southeast	1.1
23:40	3.6	south-southeast	1.2
23:50	3.7	south-southeast	0.8