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

○Information

○Measurement value list ： 2025/05/15(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	north	2.5
00:10	3.7	north	2.6
00:20	3.5	north	2.2
00:30	3.5	north	2.3
00:40	3.6	north	2.1
00:50	3.4	north	2.1
01:00	3.5	northwest	1.3
01:10	3.6	west-northwest	0.8
01:20	3.6	west-northwest	1.0
01:30	3.7	-	CALM
01:40	3.6	northwest	0.7
01:50	3.5	northwest	0.7
02:00	3.4	north-northeast	0.7
02:10	3.6	north-northwest	0.7
02:20	3.6	-	CALM
02:30	3.5	west	1.0
02:40	3.6	west	1.1
02:50	3.6	-	CALM
03:00	3.6	-	CALM
03:10	3.5	-	CALM
03:20	3.5	-	CALM
03:30	3.6	south	0.7
03:40	3.6	south-southwest	1.0
03:50	3.6	southwest	0.7
04:00	3.8	southwest	1.0
04:10	3.7	southwest	1.3
04:20	3.7	west-southwest	1.3
04:30	3.6	west-southwest	1.0
04:40	3.6	west-southwest	1.0
04:50	3.5	west-southwest	0.8
05:00	3.5	west	0.5
05:10	3.6	-	CALM
05:20	3.6	north-northwest	0.5
05:30	3.4	north-northwest	0.7
05:40	3.6	north	0.5
05:50	3.6	north	0.8
06:00	3.5	north	1.0
06:10	3.6	north	1.0
06:20	3.7	north-northeast	1.6
06:30	3.5	north	0.7
06:40	3.6	north-northwest	0.7
06:50	3.6	north	0.8
07:00	3.4	northeast	1.3
07:10	3.5	north-northeast	1.1
07:20	3.6	east-northeast	1.3
07:30	3.7	northeast	1.8
07:40	3.6	east-northeast	1.1
07:50	3.7	-	CALM
08:00	3.5	-	CALM
08:10	3.6	north	0.5
08:20	3.6	-	CALM
08:30	3.6	-	CALM
08:40	3.6	southeast	0.7
08:50	3.7	southeast	1.3
09:00	3.6	southeast	1.0
09:10	3.7	east	1.9
09:20	3.5	east-southeast	3.3
09:30	3.5	east-southeast	3.2
09:40	3.6	east-southeast	3.5
09:50	3.5	southeast	4.3
10:00	3.5	southeast	4.3
10:10	3.7	southeast	4.6
10:20	3.6	southeast	5.1
10:30	3.5	southeast	4.6
10:40	3.8	southeast	4.8
10:50	3.8	southeast	5.7
11:00	3.6	south-southeast	6.8
11:10	3.6	southeast	7.4
11:20	3.6	southeast	7.1
11:30	3.6	southeast	7.6
11:40	3.5	southeast	7.0
11:50	3.6	south-southeast	8.4
12:00	3.6	southeast	8.1
12:10	3.6	south-southeast	7.9
12:20	3.7	southeast	8.5
12:30	3.6	southeast	8.4
12:40	3.6	southeast	8.7
12:50	3.6	southeast	8.4
13:00	3.7	south-southeast	9.8
13:10	3.6	southeast	8.7
13:20	3.6	south-southeast	8.7
13:30	3.6	south-southeast	7.6
13:40	3.6	south-southeast	9.2
13:50	3.7	south-southeast	10.1
14:00	3.5	south-southeast	9.2
14:10	3.7	south-southeast	9.0
14:20	3.6	south-southeast	8.1
14:30	3.8	southeast	7.7
14:40	3.7	south-southeast	9.0
14:50	3.7	south-southeast	9.5
15:00	3.5	south-southeast	9.2
15:10	3.7	south-southeast	9.5
15:20	3.7	south-southeast	8.7
15:30	3.7	south-southeast	7.9
15:40	3.5	south-southeast	7.9
15:50	3.7	south-southeast	7.4
16:00	3.7	south-southeast	7.4
16:10	3.7	south-southeast	7.6
16:20	3.7	south-southeast	7.7
16:30	3.6	south-southeast	7.3
16:40	3.7	south-southeast	6.8
16:50	3.8	south-southeast	7.1
17:00	3.6	south-southeast	6.8
17:10	3.6	south-southeast	6.3
17:20	3.7	south-southeast	7.3
17:30	3.7	south-southeast	6.2
17:40	3.6	south-southeast	5.1
17:50	3.6	south-southeast	5.4
18:00	3.6	south-southeast	5.2
18:10	3.7	south-southeast	5.4
18:20	3.5	south	5.2
18:30	3.5	south	4.8
18:40	3.5	south-southeast	5.4
18:50	3.6	south	6.2
19:00	3.5	south-southeast	6.2
19:10	3.6	south-southeast	5.9
19:20	3.5	south	6.6
19:30	3.6	south	7.0
19:40	3.6	south	5.7
19:50	3.6	south	5.9
20:00	3.8	south	6.2
20:10	3.7	south	5.5
20:20	3.5	south-southeast	5.5
20:30	3.6	south-southeast	6.2
20:40	3.6	south	5.7
20:50	3.5	south	5.4
21:00	3.5	south	5.4
21:10	3.6	south	5.1
21:20	3.6	south	5.1
21:30	3.6	south	4.4
21:40	3.6	south-southwest	3.5
21:50	3.6	south	2.9
22:00	3.6	south	3.7
22:10	3.4	south	3.7
22:20	3.6	south	3.5
22:30	3.7	south	3.2
22:40	3.6	south	3.2
22:50	3.7	south	2.9
23:00	3.5	south	2.7
23:10	3.6	south	2.5
23:20	3.7	south-southeast	2.3
23:30	3.6	south-southeast	2.3
23:40	3.6	south-southeast	3.0
23:50	3.7	south	3.2