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

○Information

○Measurement value list ： 2025/06/30(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	1.3
00:10	3.7	southwest	1.4
00:20	3.6	south-southwest	1.2
00:30	3.6	south-southwest	1.3
00:40	3.6	south	1.2
00:50	3.6	-	CALM
01:00	3.7	-	CALM
01:10	3.6	north-northeast	0.7
01:20	3.5	north-northeast	1.0
01:30	3.5	northwest	1.4
01:40	3.7	northwest	3.2
01:50	3.5	northwest	2.0
02:00	3.6	north-northwest	2.3
02:10	3.5	northwest	3.1
02:20	3.6	northwest	3.2
02:30	3.6	northwest	2.7
02:40	3.4	west-northwest	1.9
02:50	3.6	west-southwest	1.3
03:00	3.5	west-southwest	1.0
03:10	3.6	-	CALM
03:20	3.7	northwest	0.8
03:30	3.4	northwest	2.0
03:40	3.5	northwest	2.1
03:50	3.6	north-northwest	2.1
04:00	3.6	north-northwest	2.2
04:10	3.6	north-northwest	2.1
04:20	3.6	north-northeast	1.7
04:30	3.7	north-northeast	2.2
04:40	3.6	north-northeast	2.2
04:50	3.7	north-northeast	2.2
05:00	3.5	north-northeast	2.0
05:10	3.6	north-northeast	2.0
05:20	3.6	north-northeast	1.5
05:30	3.6	northeast	1.6
05:40	3.6	north-northeast	1.2
05:50	3.5	northeast	1.1
06:00	3.6	north-northeast	0.7
06:10	3.6	-	CALM
06:20	3.6	-	CALM
06:30	3.4	east	0.6
06:40	3.7	south	0.7
06:50	3.5	-	CALM
07:00	3.6	-	CALM
07:10	3.7	-	CALM
07:20	3.7	south-southwest	1.1
07:30	3.6	south-southeast	0.6
07:40	3.5	east	0.9
07:50	3.7	east-southeast	1.1
08:00	3.7	east-southeast	1.1
08:10	3.8	southeast	1.4
08:20	3.6	southeast	1.2
08:30	3.6	south-southeast	2.0
08:40	3.5	southeast	1.8
08:50	3.5	southeast	2.1
09:00	3.4	east-southeast	2.3
09:10	3.7	southeast	3.2
09:20	3.5	southeast	3.1
09:30	3.6	east-southeast	2.8
09:40	3.6	east-southeast	2.6
09:50	3.5	east	3.6
10:00	3.5	east	3.2
10:10	3.4	east-southeast	2.3
10:20	3.4	east-southeast	3.1
10:30	3.6	east-southeast	2.8
10:40	3.5	southeast	2.9
10:50	3.5	east-southeast	2.1
11:00	3.5	east	2.5
11:10	3.6	east	2.4
11:20	3.5	east	3.3
11:30	3.7	east	2.3
11:40	3.7	east	2.1
11:50	3.6	east	2.0
12:00	3.5	east-southeast	1.6
12:10	3.6	east-southeast	1.6
12:20	3.5	east	2.2
12:30	3.5	east-southeast	2.0
12:40	3.5	east-southeast	2.2
12:50	3.5	east-southeast	2.2
13:00	3.5	east	2.1
13:10	3.6	east-southeast	2.1
13:20	3.5	east-southeast	1.8
13:30	3.6	east-southeast	2.3
13:40	3.6	south-southeast	1.5
13:50	3.7	east-southeast	2.2
14:00	3.5	east-southeast	1.9
14:10	3.6	southeast	2.0
14:20	3.7	southeast	2.1
14:30	3.6	southeast	1.8
14:40	3.6	south-southeast	1.4
14:50	3.6	east	1.0
15:00	3.5	east-southeast	1.3
15:10	3.4	east-southeast	1.4
15:20	3.5	southeast	1.3
15:30	3.5	east-southeast	1.1
15:40	3.5	southeast	0.8
15:50	3.5	south-southeast	0.7
16:00	3.6	south	0.7
16:10	3.6	south	0.6
16:20	3.5	-	CALM
16:30	3.7	south	1.0
16:40	3.6	-	CALM
16:50	3.6	southeast	0.8
17:00	3.6	east-southeast	0.9
17:10	3.6	east-southeast	1.0
17:20	3.6	east-southeast	1.2
17:30	3.4	east-southeast	1.5
17:40	3.6	southeast	1.3
17:50	3.6	southeast	0.7
18:00	3.6	-	CALM
18:10	3.6	-	CALM
18:20	3.5	-	CALM
18:30	3.6	-	CALM
18:40	3.6	-	CALM
18:50	3.6	-	CALM
19:00	3.5	northeast	0.7
19:10	3.6	northeast	0.6
19:20	3.4	-	CALM
19:30	3.6	southwest	0.6
19:40	3.6	-	CALM
19:50	3.6	-	CALM
20:00	3.6	-	CALM
20:10	3.5	west	0.6
20:20	3.6	west-southwest	0.8
20:30	3.6	west-southwest	1.6
20:40	3.6	west-southwest	1.0
20:50	3.6	southwest	1.2
21:00	3.6	southwest	1.9
21:10	3.5	west-southwest	1.9
21:20	3.8	southwest	3.1
21:30	3.6	west-southwest	2.6
21:40	3.4	west-southwest	2.9
21:50	3.4	southwest	2.2
22:00	3.5	southwest	2.4
22:10	3.4	southwest	3.9
22:20	3.5	west-southwest	4.3
22:30	3.5	west-southwest	5.0
22:40	3.4	west	3.6
22:50	3.6	west-southwest	4.6
23:00	3.6	west-southwest	5.1
23:10	3.6	west-southwest	5.2
23:20	3.5	west	3.7
23:30	3.6	west-southwest	4.2
23:40	3.5	west-southwest	3.8
23:50	3.6	southwest	3.9