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

○Information

○Measurement value list ： 2025/05/23(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	north-northwest	2.1
00:10	3.6	north	2.6
00:20	3.6	north-northwest	1.8
00:30	3.6	north-northwest	3.2
00:40	3.5	north-northwest	2.2
00:50	3.6	north-northwest	2.5
01:00	3.7	north-northwest	2.4
01:10	3.5	north	2.2
01:20	3.5	north	2.1
01:30	3.6	northwest	0.7
01:40	3.5	north-northwest	0.7
01:50	3.7	north-northwest	1.4
02:00	3.7	north	1.3
02:10	3.5	north	1.3
02:20	3.6	north-northwest	1.0
02:30	3.4	northwest	1.0
02:40	3.8	north-northwest	1.0
02:50	3.6	northwest	1.0
03:00	3.6	northwest	0.8
03:10	3.6	north-northwest	0.7
03:20	3.6	-	CALM
03:30	3.5	-	CALM
03:40	3.6	-	CALM
03:50	3.7	west	0.7
04:00	3.6	west-northwest	0.7
04:10	3.7	northwest	1.0
04:20	3.7	northwest	1.0
04:30	3.7	north-northeast	0.7
04:40	3.7	northeast	0.5
04:50	3.6	east	0.7
05:00	3.7	east-northeast	0.5
05:10	3.6	-	CALM
05:20	3.7	-	CALM
05:30	3.5	northeast	0.5
05:40	3.8	-	CALM
05:50	3.6	-	CALM
06:00	3.6	-	CALM
06:10	3.6	north-northeast	1.0
06:20	3.6	northeast	1.3
06:30	3.6	northwest	1.1
06:40	3.5	northwest	2.1
06:50	3.8	northwest	2.2
07:00	3.4	north	2.2
07:10	3.7	north	2.3
07:20	3.7	north-northeast	1.0
07:30	3.4	north-northeast	2.5
07:40	3.7	north	1.8
07:50	3.6	north-northeast	2.9
08:00	3.6	north-northeast	3.2
08:10	3.5	north-northeast	3.0
08:20	3.5	northeast	2.9
08:30	3.8	north-northeast	2.9
08:40	3.6	north-northeast	3.3
08:50	3.6	north-northeast	2.9
09:00	3.4	northeast	3.5
09:10	3.7	northeast	3.3
09:20	3.6	northeast	4.0
09:30	3.5	northeast	3.7
09:40	3.6	northeast	4.0
09:50	3.6	north	4.0
10:00	3.5	northeast	4.0
10:10	3.5	northeast	3.5
10:20	3.8	north-northeast	3.5
10:30	3.7	northeast	3.3
10:40	3.5	northeast	4.0
10:50	3.5	north-northeast	3.3
11:00	3.5	northeast	4.0
11:10	3.5	northeast	4.1
11:20	3.5	northeast	4.3
11:30	3.5	north-northeast	3.8
11:40	3.7	northeast	3.8
11:50	3.6	north-northeast	4.3
12:00	3.4	northeast	3.2
12:10	3.6	northeast	4.8
12:20	3.6	northeast	5.2
12:30	3.5	northeast	4.1
12:40	3.6	northeast	4.4
12:50	3.8	northeast	5.1
13:00	3.7	east-northeast	4.6
13:10	3.5	east	4.0
13:20	3.6	east	4.3
13:30	3.6	east-northeast	3.3
13:40	3.6	east	3.7
13:50	3.6	northeast	3.3
14:00	3.5	east-northeast	2.9
14:10	3.7	northeast	2.4
14:20	3.7	east-northeast	2.2
14:30	3.6	east	3.5
14:40	3.6	east-northeast	3.8
14:50	3.7	east	3.2
15:00	3.6	east-southeast	4.3
15:10	3.7	east	3.7
15:20	3.6	east-northeast	4.3
15:30	3.5	east	3.3
15:40	3.6	east-southeast	2.3
15:50	3.6	east-southeast	3.2
16:00	3.6	east-southeast	2.6
16:10	3.5	east	2.7
16:20	3.6	east	3.2
16:30	3.5	east	2.7
16:40	3.6	east	2.7
16:50	3.6	east	2.4
17:00	3.4	east	1.9
17:10	3.7	south-southeast	1.8
17:20	3.5	southeast	1.3
17:30	3.5	southeast	1.3
17:40	3.7	south-southeast	1.8
17:50	3.5	south-southeast	1.5
18:00	3.6	east-southeast	1.3
18:10	3.9	southeast	1.3
18:20	3.5	east-southeast	1.9
18:30	3.7	east-southeast	2.2
18:40	3.6	southeast	1.9
18:50	3.5	east-southeast	1.4
19:00	3.6	south-southeast	1.3
19:10	3.6	southeast	1.3
19:20	3.4	southeast	1.4
19:30	3.7	southeast	1.8
19:40	3.7	southeast	1.3
19:50	3.4	east-southeast	1.0
20:00	3.7	south	0.5
20:10	3.5	south-southeast	0.7
20:20	3.6	south-southeast	0.7
20:30	3.5	southeast	0.8
20:40	3.7	south	1.0
20:50	3.7	-	CALM
21:00	3.6	-	CALM
21:10	3.6	east-southeast	1.3
21:20	3.7	-	CALM
21:30	3.6	-	CALM
21:40	3.6	-	CALM
21:50	3.4	-	CALM
22:00	3.4	southwest	0.7
22:10	3.8	west	0.7
22:20	3.6	west	1.0
22:30	3.4	west-southwest	1.3
22:40	3.6	-	CALM
22:50	3.5	west	1.3
23:00	3.6	northwest	0.8
23:10	3.8	northwest	1.3
23:20	3.6	west-northwest	1.4
23:30	3.6	northwest	1.4
23:40	3.6	west-northwest	2.1
23:50	3.6	northwest	1.5