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

○Information

○Measurement value list ： 2026/07/28(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-northwest	1.7
00:10	3.6	-	-
00:20	3.6	-	-
00:30	3.5	-	-
00:40	3.5	-	-
00:50	3.4	west	1.2
01:00	3.5	west-southwest	1.2
01:10	3.5	-	-
01:20	3.5	west	1.2
01:30	3.5	west	1.0
01:40	3.5	-	-
01:50	3.7	west-southwest	1.7
02:00	3.6	-	-
02:10	3.8	west-southwest	1.4
02:20	3.7	-	CALM
02:30	3.6	west	1.6
02:40	3.7	west-northwest	1.7
02:50	3.3	west	1.1
03:00	3.5	-	-
03:10	3.7	-	-
03:20	3.6	-	-
03:30	3.6	-	-
03:40	3.5	west-northwest	1.0
03:50	3.6	west-southwest	1.2
04:00	3.6	-	CALM
04:10	3.5	-	CALM
04:20	3.6	west	0.6
04:30	3.7	-	CALM
04:40	3.5	-	CALM
04:50	3.6	-	CALM
05:00	3.4	-	CALM
05:10	3.6	south-southeast	1.5
05:20	3.6	southeast	0.8
05:30	3.7	south-southeast	1.0
05:40	3.5	south	0.9
05:50	3.4	-	-
06:00	3.4	southwest	1.7
06:10	3.7	south-southwest	1.0
06:20	3.5	east-southeast	0.9
06:30	3.6	southeast	1.2
06:40	3.4	south-southeast	1.7
06:50	3.5	south-southeast	1.4
07:00	3.5	south-southeast	0.9
07:10	3.4	southeast	1.2
07:20	3.5	southeast	1.5
07:30	3.5	southeast	1.9
07:40	3.6	east-southeast	2.1
07:50	3.6	southeast	2.5
08:00	3.6	southeast	2.2
08:10	3.6	east-southeast	2.4
08:20	3.5	east-southeast	3.2
08:30	3.5	southeast	3.1
08:40	3.6	east-southeast	3.3
08:50	3.5	southeast	2.9
09:00	3.5	east-southeast	3.8
09:10	3.7	southeast	3.1
09:20	3.5	southeast	3.6
09:30	3.6	southeast	4.0
09:40	3.5	southeast	3.8
09:50	3.3	southeast	4.7
10:00	3.5	southeast	5.1
10:10	3.4	southeast	4.5
10:20	3.6	southeast	4.7
10:30	3.5	south-southeast	4.5
10:40	3.6	southeast	5.0
10:50	3.5	south-southeast	5.5
11:00	3.6	southeast	5.8
11:10	3.7	southeast	5.7
11:20	3.4	southeast	6.9
11:30	3.5	southeast	5.4
11:40	3.5	southeast	5.5
11:50	3.5	southeast	7.1
12:00	3.6	south-southeast	7.1
12:10	3.5	southeast	6.7
12:20	3.6	southeast	7.5
12:30	3.5	southeast	6.1
12:40	3.7	southeast	5.8
12:50	3.6	southeast	5.3
13:00	3.7	southeast	5.4
13:10	3.6	southeast	5.8
13:20	3.7	southeast	5.9
13:30	3.5	southeast	6.5
13:40	3.5	south-southeast	7.1
13:50	3.6	south-southeast	6.1
14:00	3.6	south-southeast	6.3
14:10	3.5	south-southeast	6.9
14:20	3.5	south-southeast	6.9
14:30	3.4	south-southeast	7.0
14:40	3.6	south-southeast	7.2
14:50	3.6	south-southeast	6.8
15:00	3.6	south-southeast	6.8
15:10	3.5	southeast	5.9
15:20	3.6	south-southeast	6.2
15:30	3.5	south-southeast	6.7
15:40	3.6	south-southeast	6.1
15:50	3.5	south-southeast	5.5
16:00	3.6	south-southeast	5.4
16:10	3.5	south-southeast	5.5
16:20	3.7	south-southeast	5.6
16:30	3.4	south-southeast	5.3
16:40	3.5	south-southeast	5.2
16:50	3.5	south	4.6
17:00	3.7	south	4.3
17:10	3.5	south	5.4
17:20	3.6	south	6.2
17:30	3.6	south	6.7
17:40	3.5	south	5.2
17:50	3.5	south-southeast	5.6
18:00	3.5	south	6.8
18:10	3.6	south	6.7
18:20	3.6	south	6.0
18:30	3.6	south	6.1
18:40	3.6	south	6.4
18:50	3.4	south	7.2
19:00	3.6	south	6.8
19:10	3.6	south	5.7
19:20	3.6	south	5.8
19:30	3.6	south	6.1
19:40	3.5	south	5.1
19:50	3.7	south-southeast	4.0
20:00	3.6	south	4.9
20:10	3.7	south-southeast	4.4
20:20	3.7	south-southeast	5.5
20:30	3.5	south-southeast	4.9
20:40	3.5	south-southeast	4.7
20:50	3.5	southeast	5.8
21:00	3.5	south-southeast	6.8
21:10	3.5	south-southeast	5.3
21:20	3.4	south-southeast	5.4
21:30	3.6	south-southeast	6.0
21:40	3.6	south-southeast	4.1
21:50	3.5	south-southeast	3.0
22:00	3.6	south-southeast	2.7
22:10	3.5	south	2.2
22:20	3.4	south-southeast	2.3
22:30	3.6	southeast	3.8
22:40	3.5	south-southeast	3.7
22:50	3.7	south	3.1
23:00	3.6	south-southeast	3.1
23:10	3.6	south-southeast	3.6
23:20	3.4	south-southeast	4.0
23:30	3.5	south	2.7
23:40	3.4	-	CALM
23:50	3.5	south	1.8