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

○Information

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