Measurement results by the hour (Chofu) 18 Apr., 2022 - 24 Apr., 2022

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., 24 Apr. 0.0283 0.0246 0.0265
22:01-23:00, Sun., 24 Apr. 0.0285 0.0249 0.0267
21:01-22:00, Sun., 24 Apr. 0.0309 0.0259 0.0288
20:01-21:00, Sun., 24 Apr. 0.0313 0.0259 0.0285
19:01-20:00, Sun., 24 Apr. 0.0315 0.0258 0.0291
18:01-19:00, Sun., 24 Apr. 0.0348 0.0298 0.0321
17:01-18:00, Sun., 24 Apr. 0.0366 0.0323 0.0341
16:01-17:00, Sun., 24 Apr. 0.0371 0.0334 0.0351
15:01-16:00, Sun., 24 Apr. 0.0367 0.0320 0.0340
14:01-15:00, Sun., 24 Apr. 0.0353 0.0305 0.0331
13:01-14:00, Sun., 24 Apr. 0.0332 0.0281 0.0308
12:01-13:00, Sun., 24 Apr. 0.0300 0.0247 0.0272
11:01-12:00, Sun., 24 Apr. 0.0285 0.0251 0.0266
10:01-11:00, Sun., 24 Apr. 0.0285 0.0243 0.0266
09:01-10:00, Sun., 24 Apr. 0.0278 0.0245 0.0263
08:01-09:00, Sun., 24 Apr. 0.0285 0.0246 0.0265
07:01-08:00, Sun., 24 Apr. 0.0279 0.0249 0.0266
06:01-07:00, Sun., 24 Apr. 0.0291 0.0250 0.0268
05:01-06:00, Sun., 24 Apr. 0.0289 0.0245 0.0266
04:01-05:00, Sun., 24 Apr. 0.0288 0.0248 0.0267
03:01-04:00, Sun., 24 Apr. 0.0288 0.0250 0.0268
02:01-03:00, Sun., 24 Apr. 0.0283 0.0250 0.0266
01:01-02:00, Sun., 24 Apr. 0.0287 0.0247 0.0267
00:01-01:00, Sun., 24 Apr. 0.0290 0.0246 0.0264
23:01-24:00, Sat., 23 Apr. 0.0280 0.0249 0.0267
22:01-23:00, Sat., 23 Apr. 0.0283 0.0247 0.0268
21:01-22:00, Sat., 23 Apr. 0.0288 0.0245 0.0268
20:01-21:00, Sat., 23 Apr. 0.0281 0.0242 0.0266
19:01-20:00, Sat., 23 Apr. 0.0285 0.0250 0.0267
18:01-19:00, Sat., 23 Apr. 0.0291 0.0252 0.0266
17:01-18:00, Sat., 23 Apr. 0.0283 0.0247 0.0264
16:01-17:00, Sat., 23 Apr. 0.0283 0.0250 0.0267
15:01-16:00, Sat., 23 Apr. 0.0283 0.0246 0.0265
14:01-15:00, Sat., 23 Apr. 0.0281 0.0249 0.0264
13:01-14:00, Sat., 23 Apr. 0.0290 0.0241 0.0266
12:01-13:00, Sat., 23 Apr. 0.0283 0.0247 0.0265
11:01-12:00, Sat., 23 Apr. 0.0283 0.0242 0.0262
10:01-11:00, Sat., 23 Apr. 0.0288 0.0246 0.0265
09:01-10:00, Sat., 23 Apr. 0.0287 0.0248 0.0267
08:01-09:00, Sat., 23 Apr. 0.0288 0.0253 0.0270
07:01-08:00, Sat., 23 Apr. 0.0290 0.0253 0.0269
06:01-07:00, Sat., 23 Apr. 0.0290 0.0251 0.0271
05:01-06:00, Sat., 23 Apr. 0.0294 0.0251 0.0268
04:01-05:00, Sat., 23 Apr. 0.0295 0.0250 0.0267
03:01-04:00, Sat., 23 Apr. 0.0291 0.0252 0.0267
02:01-03:00, Sat., 23 Apr. 0.0284 0.0252 0.0270
01:01-02:00, Sat., 23 Apr. 0.0289 0.0250 0.0273
00:01-01:00, Sat., 23 Apr. 0.0299 0.0260 0.0276
23:01-24:00, Fri., 22 Apr. 0.0290 0.0256 0.0272
22:01-23:00, Fri., 22 Apr. 0.0288 0.0252 0.0266
21:01-22:00, Fri., 22 Apr. 0.0296 0.0250 0.0269
20:01-21:00, Fri., 22 Apr. 0.0293 0.0247 0.0266
19:01-20:00, Fri., 22 Apr. 0.0288 0.0241 0.0263
18:01-19:00, Fri., 22 Apr. 0.0282 0.0249 0.0264
17:01-18:00, Fri., 22 Apr. 0.0282 0.0245 0.0263
16:01-17:00, Fri., 22 Apr. 0.0290 0.0241 0.0262
15:01-16:00, Fri., 22 Apr. 0.0279 0.0242 0.0261
14:01-15:00, Fri., 22 Apr. 0.0277 0.0247 0.0261
13:01-14:00, Fri., 22 Apr. 0.0280 0.0244 0.0260
12:01-13:00, Fri., 22 Apr. 0.0277 0.0243 0.0261
11:01-12:00, Fri., 22 Apr. 0.0279 0.0238 0.0260
10:01-11:00, Fri., 22 Apr. 0.0275 0.0240 0.0259
09:01-10:00, Fri., 22 Apr. 0.0278 0.0246 0.0261
08:01-09:00, Fri., 22 Apr. 0.0286 0.0243 0.0264
07:01-08:00, Fri., 22 Apr. 0.0279 0.0250 0.0264
06:01-07:00, Fri., 22 Apr. 0.0295 0.0243 0.0267
05:01-06:00, Fri., 22 Apr. 0.0280 0.0238 0.0266
04:01-05:00, Fri., 22 Apr. 0.0307 0.0257 0.0282
03:01-04:00, Fri., 22 Apr. 0.0381 0.0284 0.0330
02:01-03:00, Fri., 22 Apr. 0.0454 0.0359 0.0402
01:01-02:00, Fri., 22 Apr. 0.0470 0.0402 0.0434
00:01-01:00, Fri., 22 Apr. 0.0468 0.0343 0.0395
23:01-24:00, Thu., 21 Apr. 0.0362 0.0321 0.0345
22:01-23:00, Thu., 21 Apr. 0.0373 0.0316 0.0344
21:01-22:00, Thu., 21 Apr. 0.0368 0.0318 0.0345
20:01-21:00, Thu., 21 Apr. 0.0359 0.0281 0.0314
19:01-20:00, Thu., 21 Apr. 0.0310 0.0270 0.0291
18:01-19:00, Thu., 21 Apr. 0.0305 0.0250 0.0270
17:01-18:00, Thu., 21 Apr. 0.0276 0.0243 0.0260
16:01-17:00, Thu., 21 Apr. 0.0280 0.0243 0.0263
15:01-16:00, Thu., 21 Apr. 0.0274 0.0236 0.0259
14:01-15:00, Thu., 21 Apr. 0.0272 0.0242 0.0259
13:01-14:00, Thu., 21 Apr. 0.0280 0.0241 0.0260
12:01-13:00, Thu., 21 Apr. 0.0280 0.0242 0.0262
11:01-12:00, Thu., 21 Apr. 0.0275 0.0246 0.0263
10:01-11:00, Thu., 21 Apr. 0.0290 0.0248 0.0265
09:01-10:00, Thu., 21 Apr. 0.0290 0.0254 0.0269
08:01-09:00, Thu., 21 Apr. 0.0289 0.0257 0.0274
07:01-08:00, Thu., 21 Apr. 0.0295 0.0253 0.0275
06:01-07:00, Thu., 21 Apr. 0.0299 0.0248 0.0276
05:01-06:00, Thu., 21 Apr. 0.0294 0.0250 0.0271
04:01-05:00, Thu., 21 Apr. 0.0292 0.0250 0.0271
03:01-04:00, Thu., 21 Apr. 0.0284 0.0245 0.0267
02:01-03:00, Thu., 21 Apr. 0.0282 0.0248 0.0268
01:01-02:00, Thu., 21 Apr. 0.0280 0.0246 0.0263
00:01-01:00, Thu., 21 Apr. 0.0283 0.0242 0.0264
23:01-24:00, Wed., 20 Apr. 0.0279 0.0244 0.0261
22:01-23:00, Wed., 20 Apr. 0.0284 0.0237 0.0263
21:01-22:00, Wed., 20 Apr. 0.0277 0.0242 0.0261
20:01-21:00, Wed., 20 Apr. 0.0280 0.0247 0.0262
19:01-20:00, Wed., 20 Apr. 0.0281 0.0242 0.0261
18:01-19:00, Wed., 20 Apr. 0.0278 0.0242 0.0262
17:01-18:00, Wed., 20 Apr. 0.0288 0.0247 0.0265
16:01-17:00, Wed., 20 Apr. 0.0281 0.0247 0.0265
15:01-16:00, Wed., 20 Apr. 0.0279 0.0240 0.0264
14:01-15:00, Wed., 20 Apr. 0.0284 0.0251 0.0270
13:01-14:00, Wed., 20 Apr. 0.0290 0.0246 0.0266
12:01-13:00, Wed., 20 Apr. 0.0275 0.0243 0.0259
11:01-12:00, Wed., 20 Apr. 0.0277 0.0241 0.0260
10:01-11:00, Wed., 20 Apr. 0.0279 0.0247 0.0261
09:01-10:00, Wed., 20 Apr. 0.0277 0.0239 0.0261
08:01-09:00, Wed., 20 Apr. 0.0279 0.0240 0.0259
07:01-08:00, Wed., 20 Apr. 0.0284 0.0244 0.0262
06:01-07:00, Wed., 20 Apr. 0.0305 0.0251 0.0276
05:01-06:00, Wed., 20 Apr. 0.0340 0.0275 0.0309
04:01-05:00, Wed., 20 Apr. 0.0361 0.0318 0.0342
03:01-04:00, Wed., 20 Apr. 0.0357 0.0280 0.0325
02:01-03:00, Wed., 20 Apr. 0.0335 0.0276 0.0302
01:01-02:00, Wed., 20 Apr. 0.0332 0.0270 0.0300
00:01-01:00, Wed., 20 Apr. 0.0301 0.0254 0.0279
23:01-24:00, Tue., 19 Apr. 0.0314 0.0278 0.0295
22:01-23:00, Tue., 19 Apr. 0.0351 0.0294 0.0318
21:01-22:00, Tue., 19 Apr. 0.0390 0.0332 0.0360
20:01-21:00, Tue., 19 Apr. 0.0360 0.0254 0.0312
19:01-20:00, Tue., 19 Apr. 0.0287 0.0247 0.0264
18:01-19:00, Tue., 19 Apr. 0.0278 0.0240 0.0263
17:01-18:00, Tue., 19 Apr. 0.0280 0.0243 0.0259
16:01-17:00, Tue., 19 Apr. 0.0280 0.0242 0.0260
15:01-16:00, Tue., 19 Apr. 0.0279 0.0245 0.0262
14:01-15:00, Tue., 19 Apr. 0.0277 0.0243 0.0259
13:01-14:00, Tue., 19 Apr. 0.0279 0.0237 0.0262
12:01-13:00, Tue., 19 Apr. 0.0280 0.0246 0.0263
11:01-12:00, Tue., 19 Apr. 0.0283 0.0238 0.0264
10:01-11:00, Tue., 19 Apr. 0.0288 0.0249 0.0267
09:01-10:00, Tue., 19 Apr. 0.0285 0.0249 0.0269
08:01-09:00, Tue., 19 Apr. 0.0282 0.0245 0.0266
07:01-08:00, Tue., 19 Apr. 0.0294 0.0252 0.0267
06:01-07:00, Tue., 19 Apr. 0.0295 0.0247 0.0266
05:01-06:00, Tue., 19 Apr. 0.0284 0.0251 0.0267
04:01-05:00, Tue., 19 Apr. 0.0282 0.0246 0.0263
03:01-04:00, Tue., 19 Apr. 0.0281 0.0242 0.0260
02:01-03:00, Tue., 19 Apr. 0.0279 0.0241 0.0264
01:01-02:00, Tue., 19 Apr. 0.0284 0.0242 0.0265
00:01-01:00, Tue., 19 Apr. 0.0290 0.0251 0.0273
23:01-24:00, Mon., 18 Apr. 0.0364 0.0287 0.0322
22:01-23:00, Mon., 18 Apr. 0.0422 0.0348 0.0377
21:01-22:00, Mon., 18 Apr. 0.0454 0.0364 0.0402
20:01-21:00, Mon., 18 Apr. 0.0460 0.0385 0.0421
19:01-20:00, Mon., 18 Apr. 0.0427 0.0350 0.0376
18:01-19:00, Mon., 18 Apr. 0.0388 0.0324 0.0354
17:01-18:00, Mon., 18 Apr. 0.0369 0.0316 0.0340
16:01-17:00, Mon., 18 Apr. 0.0331 0.0261 0.0292
15:01-16:00, Mon., 18 Apr. 0.0291 0.0254 0.0273
14:01-15:00, Mon., 18 Apr. 0.0304 0.0259 0.0282
13:01-14:00, Mon., 18 Apr. 0.0327 0.0275 0.0299
12:01-13:00, Mon., 18 Apr. 0.0299 0.0253 0.0279
11:01-12:00, Mon., 18 Apr. 0.0289 0.0251 0.0268
10:01-11:00, Mon., 18 Apr. 0.0293 0.0249 0.0272
09:01-10:00, Mon., 18 Apr. 0.0298 0.0261 0.0276
08:01-09:00, Mon., 18 Apr. 0.0288 0.0252 0.0273
07:01-08:00, Mon., 18 Apr. 0.0292 0.0258 0.0274
06:01-07:00, Mon., 18 Apr. 0.0302 0.0264 0.0277
05:01-06:00, Mon., 18 Apr. 0.0292 0.0258 0.0277
04:01-05:00, Mon., 18 Apr. 0.0297 0.0247 0.0273
03:01-04:00, Mon., 18 Apr. 0.0289 0.0257 0.0273
02:01-03:00, Mon., 18 Apr. 0.0288 0.0249 0.0267
01:01-02:00, Mon., 18 Apr. 0.0289 0.0247 0.0267
00:01-01:00, Mon., 18 Apr. 0.0285 0.0248 0.0265