Measurement results by the hour (Chofu) 20 Apr., 2020 - 26 Apr., 2020

Shown in µGy/h (microgray per hour)

Gray indicates an amount of energy (absorbed dose) when radiation hits a material object, and 1 gray (Gy) of radiation doses in the air can be converted to 1 sievert (Sv).

Measurement time Dose rate
μGy/h (microgray per hour)
Maximum value Minimum value Average value
23:01-24:00, Sun., 26 Apr. 0.0298 0.0266 0.0282
22:01-23:00, Sun., 26 Apr. 0.0298 0.0258 0.0277
21:01-22:00, Sun., 26 Apr. 0.0301 0.0251 0.0273
20:01-21:00, Sun., 26 Apr. 0.0298 0.0252 0.0277
19:01-20:00, Sun., 26 Apr. 0.0293 0.0253 0.0274
18:01-19:00, Sun., 26 Apr. 0.0293 0.0259 0.0275
17:01-18:00, Sun., 26 Apr. 0.0292 0.0255 0.0275
16:01-17:00, Sun., 26 Apr. 0.0294 0.0249 0.0273
15:01-16:00, Sun., 26 Apr. 0.0294 0.0258 0.0277
14:01-15:00, Sun., 26 Apr. 0.0295 0.0256 0.0274
13:01-14:00, Sun., 26 Apr. 0.0300 0.0250 0.0273
12:01-13:00, Sun., 26 Apr. 0.0286 0.0259 0.0274
11:01-12:00, Sun., 26 Apr. 0.0301 0.0254 0.0276
10:01-11:00, Sun., 26 Apr. 0.0291 0.0257 0.0273
09:01-10:00, Sun., 26 Apr. 0.0293 0.0258 0.0275
08:01-09:00, Sun., 26 Apr. 0.0304 0.0255 0.0277
07:01-08:00, Sun., 26 Apr. 0.0299 0.0268 0.0285
06:01-07:00, Sun., 26 Apr. 0.0307 0.0266 0.0285
05:01-06:00, Sun., 26 Apr. 0.0303 0.0252 0.0283
04:01-05:00, Sun., 26 Apr. 0.0300 0.0261 0.0280
03:01-04:00, Sun., 26 Apr. 0.0306 0.0260 0.0278
02:01-03:00, Sun., 26 Apr. 0.0292 0.0261 0.0277
01:01-02:00, Sun., 26 Apr. 0.0293 0.0253 0.0274
00:01-01:00, Sun., 26 Apr. 0.0295 0.0256 0.0273
23:01-24:00, Sat., 25 Apr. 0.0298 0.0262 0.0275
22:01-23:00, Sat., 25 Apr. 0.0300 0.0252 0.0273
21:01-22:00, Sat., 25 Apr. 0.0300 0.0260 0.0275
20:01-21:00, Sat., 25 Apr. 0.0300 0.0252 0.0272
19:01-20:00, Sat., 25 Apr. 0.0291 0.0257 0.0275
18:01-19:00, Sat., 25 Apr. 0.0294 0.0259 0.0275
17:01-18:00, Sat., 25 Apr. 0.0291 0.0255 0.0276
16:01-17:00, Sat., 25 Apr. 0.0297 0.0257 0.0277
15:01-16:00, Sat., 25 Apr. 0.0293 0.0258 0.0275
14:01-15:00, Sat., 25 Apr. 0.0304 0.0251 0.0277
13:01-14:00, Sat., 25 Apr. 0.0295 0.0257 0.0275
12:01-13:00, Sat., 25 Apr. 0.0299 0.0255 0.0276
11:01-12:00, Sat., 25 Apr. 0.0306 0.0257 0.0278
10:01-11:00, Sat., 25 Apr. 0.0291 0.0263 0.0277
09:01-10:00, Sat., 25 Apr. 0.0297 0.0265 0.0281
08:01-09:00, Sat., 25 Apr. 0.0303 0.0262 0.0284
07:01-08:00, Sat., 25 Apr. 0.0302 0.0266 0.0285
06:01-07:00, Sat., 25 Apr. 0.0317 0.0258 0.0286
05:01-06:00, Sat., 25 Apr. 0.0299 0.0267 0.0281
04:01-05:00, Sat., 25 Apr. 0.0303 0.0262 0.0278
03:01-04:00, Sat., 25 Apr. 0.0296 0.0256 0.0278
02:01-03:00, Sat., 25 Apr. 0.0294 0.0254 0.0277
01:01-02:00, Sat., 25 Apr. 0.0293 0.0260 0.0277
00:01-01:00, Sat., 25 Apr. 0.0298 0.0260 0.0280
23:01-24:00, Fri., 24 Apr. 0.0305 0.0262 0.0282
22:01-23:00, Fri., 24 Apr. 0.0316 0.0275 0.0292
21:01-22:00, Fri., 24 Apr. 0.0347 0.0292 0.0319
20:01-21:00, Fri., 24 Apr. 0.0336 0.0261 0.0294
19:01-20:00, Fri., 24 Apr. 0.0291 0.0251 0.0270
18:01-19:00, Fri., 24 Apr. 0.0297 0.0252 0.0272
17:01-18:00, Fri., 24 Apr. 0.0297 0.0256 0.0275
16:01-17:00, Fri., 24 Apr. 0.0290 0.0248 0.0275
15:01-16:00, Fri., 24 Apr. 0.0299 0.0252 0.0273
14:01-15:00, Fri., 24 Apr. 0.0294 0.0253 0.0272
13:01-14:00, Fri., 24 Apr. 0.0292 0.0254 0.0274
12:01-13:00, Fri., 24 Apr. 0.0290 0.0257 0.0273
11:01-12:00, Fri., 24 Apr. 0.0291 0.0249 0.0276
10:01-11:00, Fri., 24 Apr. 0.0299 0.0255 0.0275
09:01-10:00, Fri., 24 Apr. 0.0297 0.0257 0.0275
08:01-09:00, Fri., 24 Apr. 0.0293 0.0258 0.0277
07:01-08:00, Fri., 24 Apr. 0.0289 0.0260 0.0278
06:01-07:00, Fri., 24 Apr. 0.0297 0.0257 0.0278
05:01-06:00, Fri., 24 Apr. 0.0300 0.0256 0.0275
04:01-05:00, Fri., 24 Apr. 0.0296 0.0262 0.0277
03:01-04:00, Fri., 24 Apr. 0.0302 0.0260 0.0278
02:01-03:00, Fri., 24 Apr. 0.0295 0.0259 0.0276
01:01-02:00, Fri., 24 Apr. 0.0304 0.0261 0.0279
00:01-01:00, Fri., 24 Apr. 0.0294 0.0259 0.0276
23:01-24:00, Thu., 23 Apr. 0.0299 0.0262 0.0277
22:01-23:00, Thu., 23 Apr. 0.0297 0.0259 0.0277
21:01-22:00, Thu., 23 Apr. 0.0289 0.0251 0.0274
20:01-21:00, Thu., 23 Apr. 0.0294 0.0257 0.0274
19:01-20:00, Thu., 23 Apr. 0.0298 0.0252 0.0274
18:01-19:00, Thu., 23 Apr. 0.0303 0.0265 0.0286
17:01-18:00, Thu., 23 Apr. 0.0360 0.0281 0.0318
16:01-17:00, Thu., 23 Apr. 0.0484 0.0338 0.0402
15:01-16:00, Thu., 23 Apr. 0.0439 0.0261 0.0330
14:01-15:00, Thu., 23 Apr. 0.0286 0.0251 0.0269
13:01-14:00, Thu., 23 Apr. 0.0293 0.0258 0.0273
12:01-13:00, Thu., 23 Apr. 0.0294 0.0254 0.0272
11:01-12:00, Thu., 23 Apr. 0.0289 0.0249 0.0272
10:01-11:00, Thu., 23 Apr. 0.0292 0.0259 0.0276
09:01-10:00, Thu., 23 Apr. 0.0298 0.0256 0.0276
08:01-09:00, Thu., 23 Apr. 0.0305 0.0261 0.0278
07:01-08:00, Thu., 23 Apr. 0.0297 0.0259 0.0278
06:01-07:00, Thu., 23 Apr. 0.0299 0.0256 0.0278
05:01-06:00, Thu., 23 Apr. 0.0317 0.0256 0.0287
04:01-05:00, Thu., 23 Apr. 0.0343 0.0279 0.0309
03:01-04:00, Thu., 23 Apr. 0.0371 0.0306 0.0337
02:01-03:00, Thu., 23 Apr. 0.0313 0.0262 0.0285
01:01-02:00, Thu., 23 Apr. 0.0301 0.0252 0.0279
00:01-01:00, Thu., 23 Apr. 0.0298 0.0256 0.0278
23:01-24:00, Wed., 22 Apr. 0.0288 0.0256 0.0273
22:01-23:00, Wed., 22 Apr. 0.0291 0.0259 0.0274
21:01-22:00, Wed., 22 Apr. 0.0296 0.0252 0.0270
20:01-21:00, Wed., 22 Apr. 0.0284 0.0254 0.0271
19:01-20:00, Wed., 22 Apr. 0.0293 0.0254 0.0273
18:01-19:00, Wed., 22 Apr. 0.0291 0.0254 0.0273
17:01-18:00, Wed., 22 Apr. 0.0296 0.0251 0.0273
16:01-17:00, Wed., 22 Apr. 0.0293 0.0252 0.0272
15:01-16:00, Wed., 22 Apr. 0.0286 0.0250 0.0269
14:01-15:00, Wed., 22 Apr. 0.0283 0.0258 0.0269
13:01-14:00, Wed., 22 Apr. 0.0293 0.0249 0.0269
12:01-13:00, Wed., 22 Apr. 0.0290 0.0250 0.0271
11:01-12:00, Wed., 22 Apr. 0.0288 0.0256 0.0271
10:01-11:00, Wed., 22 Apr. 0.0290 0.0254 0.0273
09:01-10:00, Wed., 22 Apr. 0.0300 0.0258 0.0274
08:01-09:00, Wed., 22 Apr. 0.0292 0.0252 0.0275
07:01-08:00, Wed., 22 Apr. 0.0295 0.0263 0.0277
06:01-07:00, Wed., 22 Apr. 0.0289 0.0253 0.0274
05:01-06:00, Wed., 22 Apr. 0.0294 0.0250 0.0272
04:01-05:00, Wed., 22 Apr. 0.0288 0.0258 0.0271
03:01-04:00, Wed., 22 Apr. 0.0289 0.0250 0.0272
02:01-03:00, Wed., 22 Apr. 0.0291 0.0253 0.0270
01:01-02:00, Wed., 22 Apr. 0.0290 0.0250 0.0269
00:01-01:00, Wed., 22 Apr. 0.0289 0.0253 0.0269
23:01-24:00, Tue., 21 Apr. 0.0289 0.0255 0.0273
22:01-23:00, Tue., 21 Apr. 0.0292 0.0258 0.0273
21:01-22:00, Tue., 21 Apr. 0.0290 0.0254 0.0271
20:01-21:00, Tue., 21 Apr. 0.0296 0.0251 0.0273
19:01-20:00, Tue., 21 Apr. 0.0286 0.0252 0.0268
18:01-19:00, Tue., 21 Apr. 0.0286 0.0251 0.0267
17:01-18:00, Tue., 21 Apr. 0.0287 0.0255 0.0268
16:01-17:00, Tue., 21 Apr. 0.0277 0.0244 0.0264
15:01-16:00, Tue., 21 Apr. 0.0287 0.0250 0.0266
14:01-15:00, Tue., 21 Apr. 0.0284 0.0247 0.0266
13:01-14:00, Tue., 21 Apr. 0.0284 0.0247 0.0267
12:01-13:00, Tue., 21 Apr. 0.0285 0.0248 0.0267
11:01-12:00, Tue., 21 Apr. 0.0290 0.0246 0.0266
10:01-11:00, Tue., 21 Apr. 0.0290 0.0250 0.0270
09:01-10:00, Tue., 21 Apr. 0.0292 0.0252 0.0273
08:01-09:00, Tue., 21 Apr. 0.0294 0.0254 0.0276
07:01-08:00, Tue., 21 Apr. 0.0297 0.0257 0.0278
06:01-07:00, Tue., 21 Apr. 0.0301 0.0265 0.0283
05:01-06:00, Tue., 21 Apr. 0.0301 0.0262 0.0281
04:01-05:00, Tue., 21 Apr. 0.0303 0.0263 0.0283
03:01-04:00, Tue., 21 Apr. 0.0297 0.0255 0.0277
02:01-03:00, Tue., 21 Apr. 0.0290 0.0253 0.0273
01:01-02:00, Tue., 21 Apr. 0.0286 0.0249 0.0271
00:01-01:00, Tue., 21 Apr. 0.0290 0.0257 0.0271
23:01-24:00, Mon., 20 Apr. 0.0286 0.0249 0.0269
22:01-23:00, Mon., 20 Apr. 0.0286 0.0252 0.0268
21:01-22:00, Mon., 20 Apr. 0.0286 0.0251 0.0265
20:01-21:00, Mon., 20 Apr. 0.0281 0.0249 0.0265
19:01-20:00, Mon., 20 Apr. 0.0286 0.0245 0.0266
18:01-19:00, Mon., 20 Apr. 0.0295 0.0250 0.0267
17:01-18:00, Mon., 20 Apr. 0.0301 0.0255 0.0283
16:01-17:00, Mon., 20 Apr. 0.0341 0.0285 0.0310
15:01-16:00, Mon., 20 Apr. 0.0365 0.0314 0.0342
14:01-15:00, Mon., 20 Apr. 0.0375 0.0328 0.0354
13:01-14:00, Mon., 20 Apr. 0.0375 0.0327 0.0351
12:01-13:00, Mon., 20 Apr. 0.0369 0.0323 0.0343
11:01-12:00, Mon., 20 Apr. 0.0359 0.0304 0.0328
10:01-11:00, Mon., 20 Apr. 0.0329 0.0293 0.0311
09:01-10:00, Mon., 20 Apr. 0.0362 0.0300 0.0328
08:01-09:00, Mon., 20 Apr. 0.0372 0.0307 0.0342
07:01-08:00, Mon., 20 Apr. 0.0345 0.0299 0.0322
06:01-07:00, Mon., 20 Apr. 0.0344 0.0292 0.0314
05:01-06:00, Mon., 20 Apr. 0.0346 0.0306 0.0329
04:01-05:00, Mon., 20 Apr. 0.0335 0.0270 0.0299
03:01-04:00, Mon., 20 Apr. 0.0305 0.0250 0.0273
02:01-03:00, Mon., 20 Apr. 0.0280 0.0242 0.0264
01:01-02:00, Mon., 20 Apr. 0.0281 0.0243 0.0264
00:01-01:00, Mon., 20 Apr. 0.0282 0.0251 0.0265