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

○Information

○Measurement value list ： 2026/03/28(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	3.7	southwest	0.6
00:10	3.7	southwest	0.8
00:20	3.8	-	CALM
00:30	3.8	south-southwest	0.6
00:40	3.7	southwest	0.7
00:50	3.5	southwest	0.7
01:00	3.5	southwest	1.4
01:10	3.6	south-southwest	2.4
01:20	3.6	south-southwest	1.1
01:30	3.7	southwest	0.6
01:40	3.6	southwest	2.0
01:50	3.8	south-southwest	1.5
02:00	3.6	south-southwest	1.1
02:10	3.7	southwest	1.4
02:20	3.7	southwest	1.0
02:30	3.5	south-southwest	1.0
02:40	3.7	south-southwest	1.4
02:50	3.7	southwest	1.6
03:00	3.6	west-southwest	1.9
03:10	3.7	west	1.7
03:20	3.7	west-northwest	1.6
03:30	3.7	west-northwest	1.6
03:40	3.5	west	1.4
03:50	3.5	west	1.0
04:00	3.6	northwest	0.7
04:10	3.8	-	CALM
04:20	3.5	north	1.2
04:30	3.7	north-northwest	1.9
04:40	3.6	northwest	3.2
04:50	3.5	northwest	2.8
05:00	3.8	northwest	2.9
05:10	3.6	northwest	2.8
05:20	3.7	northwest	2.3
05:30	3.5	northwest	2.5
05:40	3.5	north-northwest	2.3
05:50	3.6	north-northwest	1.8
06:00	3.6	northwest	1.2
06:10	3.6	-	CALM
06:20	3.6	west-northwest	0.7
06:30	3.7	northwest	0.8
06:40	3.7	north	1.3
06:50	3.8	north	1.3
07:00	3.5	north	1.9
07:10	3.6	north-northwest	1.5
07:20	3.7	north-northwest	1.4
07:30	3.6	north-northwest	1.3
07:40	3.6	north-northeast	1.5
07:50	3.5	north-northeast	0.8
08:00	3.6	northeast	1.1
08:10	3.6	northeast	1.3
08:20	3.7	northeast	0.9
08:30	3.6	east-northeast	1.5
08:40	3.6	east-northeast	2.2
08:50	3.7	east-northeast	1.6
09:00	3.7	northeast	1.4
09:10	3.6	northeast	1.4
09:20	3.6	northeast	1.5
09:30	3.7	northeast	1.4
09:40	3.6	east-northeast	2.0
09:50	3.7	east	2.7
10:00	3.7	east-northeast	2.4
10:10	3.6	east-northeast	2.6
10:20	3.5	east-northeast	2.6
10:30	3.6	east	2.6
10:40	3.7	east-northeast	3.0
10:50	3.8	east	2.9
11:00	3.7	east-northeast	2.8
11:10	3.6	east-northeast	3.0
11:20	3.5	east	2.6
11:30	3.6	east-northeast	3.2
11:40	3.6	east-northeast	3.1
11:50	3.8	east	3.4
12:00	3.6	east-northeast	2.7
12:10	3.8	east-northeast	3.1
12:20	3.7	northeast	3.2
12:30	3.7	east-northeast	2.5
12:40	3.6	east-northeast	3.1
12:50	3.6	east-northeast	2.5
13:00	3.8	east-northeast	2.8
13:10	3.6	east-northeast	3.1
13:20	3.7	east-northeast	2.4
13:30	3.7	east-northeast	3.5
13:40	3.7	northeast	2.7
13:50	3.7	east-northeast	2.4
14:00	3.7	northeast	2.3
14:10	3.6	east-northeast	2.8
14:20	3.8	east-northeast	2.0
14:30	3.6	east-northeast	2.5
14:40	3.8	east-northeast	2.0
14:50	3.7	east-northeast	2.5
15:00	3.9	east-northeast	2.0
15:10	3.8	east-northeast	1.8
15:20	3.5	northeast	1.7
15:30	3.7	north-northeast	2.1
15:40	3.5	northeast	1.8
15:50	3.6	east-northeast	1.7
16:00	3.8	northeast	1.6
16:10	3.6	northeast	1.5
16:20	3.7	east-northeast	1.7
16:30	3.6	north-northeast	1.3
16:40	3.6	northeast	1.4
16:50	3.8	east-northeast	1.4
17:00	3.7	northeast	1.0
17:10	3.8	north-northeast	1.5
17:20	3.7	north	1.5
17:30	3.5	north	1.0
17:40	3.7	north	0.7
17:50	3.6	east-northeast	0.6
18:00	3.6	east-northeast	0.6
18:10	3.5	-	CALM
18:20	3.8	-	CALM
18:30	3.7	-	CALM
18:40	3.6	-	CALM
18:50	3.7	south-southwest	0.8
19:00	3.7	south	1.2
19:10	3.6	south	1.4
19:20	3.5	south	0.8
19:30	3.8	south-southwest	1.1
19:40	3.8	south	1.0
19:50	3.7	southwest	0.9
20:00	3.7	south-southwest	1.1
20:10	3.8	south-southwest	1.5
20:20	3.7	south	1.8
20:30	3.7	south-southeast	1.5
20:40	3.5	south-southeast	2.0
20:50	3.7	south-southeast	2.0
21:00	3.8	south-southeast	2.3
21:10	3.7	south-southeast	2.4
21:20	3.6	southeast	1.2
21:30	3.8	southeast	0.8
21:40	3.8	south-southeast	1.1
21:50	3.7	southeast	0.6
22:00	3.5	-	CALM
22:10	3.7	-	CALM
22:20	3.6	-	CALM
22:30	3.7	-	CALM
22:40	3.6	south-southeast	0.6
22:50	3.8	-	CALM
23:00	3.8	-	CALM
23:10	3.5	south-southwest	0.9
23:20	3.5	south-southwest	1.0
23:30	3.5	south-southwest	0.9
23:40	3.5	-	CALM
23:50	3.4	north	0.8