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

○Information

○Measurement value list ： 2025/06/18(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-northeast	0.8
00:10	3.6	northwest	0.8
00:20	3.5	-	CALM
00:30	3.5	north	0.8
00:40	3.6	-	CALM
00:50	3.6	-	CALM
01:00	3.5	south	1.8
01:10	3.5	southeast	1.5
01:20	3.7	southeast	1.6
01:30	3.4	southeast	1.7
01:40	3.7	southeast	1.8
01:50	3.7	south-southeast	1.8
02:00	3.6	south-southwest	1.5
02:10	3.6	south-southwest	1.7
02:20	3.7	south	1.8
02:30	3.6	south	2.9
02:40	3.7	south-southeast	2.7
02:50	3.6	south	2.3
03:00	3.7	south	2.6
03:10	3.5	south	2.9
03:20	3.5	south-southwest	3.0
03:30	3.7	south-southwest	2.3
03:40	3.6	southwest	2.5
03:50	3.4	west	2.3
04:00	3.5	west-northwest	2.1
04:10	3.7	west-northwest	1.4
04:20	3.7	west-northwest	1.2
04:30	3.6	northwest	2.2
04:40	3.5	northwest	2.5
04:50	3.7	northwest	3.2
05:00	3.6	northwest	3.4
05:10	3.5	northwest	3.0
05:20	3.5	northwest	2.9
05:30	3.6	west-northwest	2.4
05:40	3.5	west-northwest	1.7
05:50	3.6	west-northwest	2.4
06:00	3.6	west-northwest	2.4
06:10	3.5	northwest	1.0
06:20	3.7	northwest	1.5
06:30	3.7	north-northwest	1.8
06:40	3.7	north-northeast	0.8
06:50	3.5	south-southeast	0.6
07:00	3.7	south-southeast	0.7
07:10	3.7	south	1.3
07:20	3.7	south-southwest	1.4
07:30	3.6	east-southeast	1.7
07:40	3.6	east-southeast	1.1
07:50	3.4	southeast	1.4
08:00	3.6	south-southeast	1.1
08:10	3.6	southeast	1.3
08:20	3.7	south-southeast	0.8
08:30	3.5	southeast	1.0
08:40	3.5	east-southeast	0.9
08:50	3.6	east-southeast	1.2
09:00	3.7	east-southeast	1.5
09:10	3.4	east	1.7
09:20	3.6	east	1.6
09:30	3.5	southeast	1.3
09:40	3.8	southeast	1.6
09:50	3.7	east-southeast	1.6
10:00	3.5	east-southeast	1.9
10:10	3.5	southeast	1.9
10:20	3.4	east-southeast	1.7
10:30	3.6	southeast	1.9
10:40	3.4	southeast	2.3
10:50	3.7	east-southeast	2.7
11:00	3.6	southeast	2.9
11:10	3.6	east-southeast	2.7
11:20	3.5	southeast	2.5
11:30	3.6	east-southeast	2.5
11:40	3.7	southeast	3.0
11:50	3.5	southeast	3.7
12:00	3.7	southeast	3.0
12:10	3.4	southeast	3.6
12:20	3.6	southeast	3.4
12:30	3.4	southeast	3.1
12:40	3.5	south-southeast	3.4
12:50	3.7	southeast	3.8
13:00	3.6	south-southeast	4.3
13:10	3.7	south-southeast	3.7
13:20	3.3	south-southeast	3.5
13:30	3.4	southeast	3.3
13:40	3.7	southeast	3.5
13:50	3.7	southeast	5.1
14:00	3.6	southeast	5.2
14:10	3.7	southeast	5.1
14:20	3.6	southeast	5.2
14:30	3.6	south-southeast	4.5
14:40	3.6	south-southeast	4.0
14:50	3.5	southeast	4.3
15:00	3.7	southeast	4.2
15:10	3.6	south-southeast	3.8
15:20	3.5	south-southeast	3.7
15:30	3.6	southeast	3.8
15:40	3.5	south-southeast	3.9
15:50	3.7	south-southeast	5.3
16:00	3.6	south-southeast	5.3
16:10	3.5	south-southeast	5.0
16:20	3.6	south-southeast	4.7
16:30	3.6	south-southeast	5.5
16:40	3.5	south-southeast	6.2
16:50	3.6	south-southeast	6.3
17:00	3.7	south-southeast	6.1
17:10	3.5	south	6.4
17:20	3.5	south	4.6
17:30	3.5	south	5.3
17:40	3.7	south	4.3
17:50	3.6	south	4.5
18:00	3.6	south-southwest	4.0
18:10	3.6	southwest	2.3
18:20	3.5	south-southwest	2.9
18:30	3.6	south-southwest	2.9
18:40	3.9	southwest	2.4
18:50	3.6	south-southwest	1.5
19:00	3.6	south-southeast	1.2
19:10	3.6	south	0.8
19:20	3.6	southwest	0.8
19:30	3.5	-	CALM
19:40	3.6	east-southeast	0.6
19:50	3.4	southeast	1.1
20:00	3.4	south-southeast	2.1
20:10	3.7	south	1.7
20:20	3.6	south	1.7
20:30	3.6	south	0.8
20:40	3.6	-	CALM
20:50	3.6	south-southwest	1.2
21:00	3.6	south-southwest	1.7
21:10	3.5	south-southwest	1.7
21:20	3.4	south-southwest	3.0
21:30	3.6	south-southwest	2.3
21:40	3.6	south	2.8
21:50	3.6	south-southwest	2.5
22:00	3.5	south	2.6
22:10	3.6	south	2.7
22:20	3.8	south-southwest	2.2
22:30	3.6	south-southwest	2.0
22:40	3.6	south-southwest	1.7
22:50	3.6	south	1.5
23:00	3.5	south	1.5
23:10	3.6	southwest	1.2
23:20	3.7	southwest	1.1
23:30	3.6	south	1.5
23:40	3.5	south-southwest	2.1
23:50	3.6	southwest	1.5