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

○Information

○Measurement value list ： 2025/11/27(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	west	3.0
00:10	3.6	west-northwest	3.9
00:20	3.6	west-northwest	3.9
00:30	3.6	west-northwest	3.4
00:40	3.6	west	4.0
00:50	3.4	west-northwest	4.2
01:00	3.6	west	4.1
01:10	3.6	west	3.5
01:20	3.5	west	2.7
01:30	3.6	west	2.5
01:40	3.6	west-northwest	2.2
01:50	3.6	west-northwest	2.0
02:00	3.7	west-northwest	1.7
02:10	3.5	west-northwest	1.7
02:20	3.5	west-northwest	1.8
02:30	3.6	west	2.4
02:40	3.6	west	2.4
02:50	3.5	west	2.7
03:00	3.5	west	2.2
03:10	3.6	west	2.6
03:20	3.6	west	2.4
03:30	3.7	west	2.9
03:40	3.5	west	2.3
03:50	3.5	west-southwest	1.9
04:00	3.6	west	1.5
04:10	3.4	west-southwest	1.6
04:20	3.6	west-southwest	1.2
04:30	3.5	west	1.6
04:40	3.6	west	1.7
04:50	3.6	west-northwest	1.5
05:00	3.7	west	1.4
05:10	3.6	west-northwest	2.3
05:20	3.6	west	2.0
05:30	3.7	west	1.9
05:40	3.5	west	1.4
05:50	3.7	west-southwest	1.5
06:00	3.7	west	1.8
06:10	3.6	west	1.9
06:20	3.6	west	1.7
06:30	3.6	west-northwest	1.2
06:40	3.6	-	CALM
06:50	3.6	-	CALM
07:00	3.7	-	CALM
07:10	3.6	west-southwest	0.8
07:20	3.4	west-southwest	1.5
07:30	3.5	west-southwest	1.6
07:40	3.6	southwest	1.3
07:50	3.6	southwest	0.6
08:00	3.6	-	CALM
08:10	3.8	west-southwest	0.8
08:20	3.7	west-southwest	0.9
08:30	3.6	west	0.8
08:40	3.6	west-southwest	1.5
08:50	3.5	west-southwest	1.3
09:00	3.7	-	CALM
09:10	3.5	south-southwest	0.7
09:20	3.6	-	CALM
09:30	3.5	-	CALM
09:40	3.5	east	1.0
09:50	3.6	east	1.7
10:00	3.6	east	2.1
10:10	3.6	east	2.2
10:20	3.6	east	2.1
10:30	3.6	east	2.3
10:40	3.6	east-southeast	1.3
10:50	3.6	south-southwest	1.2
11:00	3.7	east	1.1
11:10	3.7	east-southeast	0.9
11:20	3.7	east-southeast	1.1
11:30	3.5	east	1.5
11:40	3.5	east	1.2
11:50	3.5	southeast	0.7
12:00	3.6	east	1.4
12:10	3.7	east	1.7
12:20	3.6	east-southeast	1.6
12:30	3.5	east-southeast	1.6
12:40	3.6	east-southeast	1.8
12:50	3.7	southeast	1.6
13:00	3.6	east-southeast	1.3
13:10	3.7	east-southeast	1.3
13:20	3.8	east	1.1
13:30	3.5	east-southeast	0.9
13:40	3.5	east	1.9
13:50	3.5	east-southeast	1.9
14:00	3.6	east-southeast	1.3
14:10	3.5	southeast	1.8
14:20	3.6	east	2.4
14:30	3.6	east-southeast	1.7
14:40	3.6	east-northeast	0.7
14:50	3.6	-	CALM
15:00	3.7	-	CALM
15:10	3.5	-	CALM
15:20	3.7	east-northeast	0.7
15:30	3.5	east-northeast	0.7
15:40	3.6	east-northeast	0.8
15:50	3.5	east-northeast	1.2
16:00	3.6	-	CALM
16:10	3.6	-	CALM
16:20	3.6	-	CALM
16:30	3.5	west	0.7
16:40	3.4	west	1.4
16:50	3.6	-	CALM
17:00	3.6	-	CALM
17:10	3.5	-	CALM
17:20	3.7	east	0.6
17:30	3.7	south-southeast	1.3
17:40	3.6	southeast	0.9
17:50	3.5	south-southeast	1.1
18:00	3.5	south-southeast	1.5
18:10	3.7	south-southeast	1.8
18:20	3.5	south	1.1
18:30	3.7	south-southwest	1.2
18:40	3.5	southwest	0.9
18:50	3.6	west	0.8
19:00	3.5	southwest	1.0
19:10	3.7	southwest	0.6
19:20	3.5	-	CALM
19:30	3.4	-	CALM
19:40	3.7	-	CALM
19:50	3.7	-	CALM
20:00	3.5	-	CALM
20:10	3.7	south-southwest	0.9
20:20	3.5	-	CALM
20:30	3.7	-	CALM
20:40	3.6	west-northwest	0.6
20:50	3.6	northwest	0.6
21:00	3.7	north-northeast	0.6
21:10	3.6	northeast	1.5
21:20	3.6	northeast	1.7
21:30	3.6	east-northeast	1.4
21:40	3.6	east	3.0
21:50	3.6	east-southeast	3.3
22:00	3.5	east-southeast	3.1
22:10	3.8	southeast	3.0
22:20	3.6	south-southeast	3.3
22:30	3.7	south	4.1
22:40	3.6	south	5.6
22:50	3.4	south	7.2
23:00	3.7	south	7.6
23:10	3.5	south	7.9
23:20	3.6	south	7.7
23:30	3.5	south-southwest	3.5
23:40	3.6	south-southwest	5.0
23:50	3.5	south-southwest	6.9