Measurement results by the hour (Chofu) 14 Mar., 2022 - 20 Mar., 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., 20 Mar. 0.0281 0.0236 0.0264
22:01-23:00, Sun., 20 Mar. 0.0284 0.0251 0.0267
21:01-22:00, Sun., 20 Mar. 0.0286 0.0248 0.0268
20:01-21:00, Sun., 20 Mar. 0.0285 0.0246 0.0267
19:01-20:00, Sun., 20 Mar. 0.0288 0.0247 0.0265
18:01-19:00, Sun., 20 Mar. 0.0282 0.0244 0.0264
17:01-18:00, Sun., 20 Mar. 0.0282 0.0239 0.0263
16:01-17:00, Sun., 20 Mar. 0.0288 0.0246 0.0265
15:01-16:00, Sun., 20 Mar. 0.0279 0.0249 0.0262
14:01-15:00, Sun., 20 Mar. 0.0279 0.0249 0.0265
13:01-14:00, Sun., 20 Mar. 0.0288 0.0251 0.0266
12:01-13:00, Sun., 20 Mar. 0.0286 0.0252 0.0265
11:01-12:00, Sun., 20 Mar. 0.0292 0.0239 0.0266
10:01-11:00, Sun., 20 Mar. 0.0285 0.0251 0.0267
09:01-10:00, Sun., 20 Mar. 0.0292 0.0253 0.0271
08:01-09:00, Sun., 20 Mar. 0.0297 0.0263 0.0279
07:01-08:00, Sun., 20 Mar. 0.0303 0.0261 0.0282
06:01-07:00, Sun., 20 Mar. 0.0301 0.0262 0.0277
05:01-06:00, Sun., 20 Mar. 0.0300 0.0261 0.0279
04:01-05:00, Sun., 20 Mar. 0.0298 0.0252 0.0272
03:01-04:00, Sun., 20 Mar. 0.0287 0.0252 0.0270
02:01-03:00, Sun., 20 Mar. 0.0289 0.0251 0.0266
01:01-02:00, Sun., 20 Mar. 0.0283 0.0248 0.0266
00:01-01:00, Sun., 20 Mar. 0.0288 0.0249 0.0269
23:01-24:00, Sat., 19 Mar. 0.0312 0.0259 0.0283
22:01-23:00, Sat., 19 Mar. 0.0432 0.0286 0.0340
21:01-22:00, Sat., 19 Mar. 0.0603 0.0375 0.0492
20:01-21:00, Sat., 19 Mar. 0.0707 0.0585 0.0657
19:01-20:00, Sat., 19 Mar. 0.0643 0.0533 0.0586
18:01-19:00, Sat., 19 Mar. 0.0616 0.0479 0.0545
17:01-18:00, Sat., 19 Mar. 0.0568 0.0372 0.0507
16:01-17:00, Sat., 19 Mar. 0.0364 0.0257 0.0280
15:01-16:00, Sat., 19 Mar. 0.0290 0.0255 0.0272
14:01-15:00, Sat., 19 Mar. 0.0286 0.0249 0.0268
13:01-14:00, Sat., 19 Mar. 0.0292 0.0243 0.0271
12:01-13:00, Sat., 19 Mar. 0.0290 0.0258 0.0272
11:01-12:00, Sat., 19 Mar. 0.0295 0.0257 0.0273
10:01-11:00, Sat., 19 Mar. 0.0292 0.0255 0.0275
09:01-10:00, Sat., 19 Mar. 0.0295 0.0263 0.0276
08:01-09:00, Sat., 19 Mar. 0.0298 0.0258 0.0280
07:01-08:00, Sat., 19 Mar. 0.0293 0.0260 0.0278
06:01-07:00, Sat., 19 Mar. 0.0297 0.0257 0.0280
05:01-06:00, Sat., 19 Mar. 0.0301 0.0262 0.0278
04:01-05:00, Sat., 19 Mar. 0.0304 0.0256 0.0279
03:01-04:00, Sat., 19 Mar. 0.0298 0.0257 0.0274
02:01-03:00, Sat., 19 Mar. 0.0302 0.0260 0.0283
01:01-02:00, Sat., 19 Mar. 0.0349 0.0278 0.0311
00:01-01:00, Sat., 19 Mar. 0.0398 0.0325 0.0356
23:01-24:00, Fri., 18 Mar. 0.0487 0.0390 0.0435
22:01-23:00, Fri., 18 Mar. 0.0511 0.0402 0.0446
21:01-22:00, Fri., 18 Mar. 0.0467 0.0386 0.0420
20:01-21:00, Fri., 18 Mar. 0.0468 0.0389 0.0433
19:01-20:00, Fri., 18 Mar. 0.0469 0.0382 0.0420
18:01-19:00, Fri., 18 Mar. 0.0439 0.0365 0.0402
17:01-18:00, Fri., 18 Mar. 0.0417 0.0320 0.0367
16:01-17:00, Fri., 18 Mar. 0.0378 0.0323 0.0345
15:01-16:00, Fri., 18 Mar. 0.0376 0.0330 0.0354
14:01-15:00, Fri., 18 Mar. 0.0361 0.0295 0.0325
13:01-14:00, Fri., 18 Mar. 0.0368 0.0317 0.0343
12:01-13:00, Fri., 18 Mar. 0.0406 0.0345 0.0375
11:01-12:00, Fri., 18 Mar. 0.0356 0.0269 0.0292
10:01-11:00, Fri., 18 Mar. 0.0298 0.0255 0.0277
09:01-10:00, Fri., 18 Mar. 0.0295 0.0253 0.0275
08:01-09:00, Fri., 18 Mar. 0.0292 0.0261 0.0277
07:01-08:00, Fri., 18 Mar. 0.0297 0.0261 0.0278
06:01-07:00, Fri., 18 Mar. 0.0313 0.0270 0.0291
05:01-06:00, Fri., 18 Mar. 0.0320 0.0287 0.0302
04:01-05:00, Fri., 18 Mar. 0.0348 0.0302 0.0322
03:01-04:00, Fri., 18 Mar. 0.0362 0.0308 0.0332
02:01-03:00, Fri., 18 Mar. 0.0400 0.0341 0.0364
01:01-02:00, Fri., 18 Mar. 0.0425 0.0349 0.0378
00:01-01:00, Fri., 18 Mar. 0.0397 0.0322 0.0359
23:01-24:00, Thu., 17 Mar. 0.0357 0.0291 0.0324
22:01-23:00, Thu., 17 Mar. 0.0343 0.0283 0.0311
21:01-22:00, Thu., 17 Mar. 0.0323 0.0280 0.0299
20:01-21:00, Thu., 17 Mar. 0.0332 0.0270 0.0302
19:01-20:00, Thu., 17 Mar. 0.0297 0.0259 0.0278
18:01-19:00, Thu., 17 Mar. 0.0295 0.0260 0.0277
17:01-18:00, Thu., 17 Mar. 0.0297 0.0257 0.0278
16:01-17:00, Thu., 17 Mar. 0.0299 0.0260 0.0276
15:01-16:00, Thu., 17 Mar. 0.0296 0.0265 0.0280
14:01-15:00, Thu., 17 Mar. 0.0299 0.0255 0.0277
13:01-14:00, Thu., 17 Mar. 0.0294 0.0251 0.0277
12:01-13:00, Thu., 17 Mar. 0.0293 0.0265 0.0278
11:01-12:00, Thu., 17 Mar. 0.0310 0.0263 0.0283
10:01-11:00, Thu., 17 Mar. 0.0308 0.0263 0.0283
09:01-10:00, Thu., 17 Mar. 0.0299 0.0260 0.0282
08:01-09:00, Thu., 17 Mar. 0.0297 0.0265 0.0283
07:01-08:00, Thu., 17 Mar. 0.0308 0.0267 0.0283
06:01-07:00, Thu., 17 Mar. 0.0307 0.0265 0.0286
05:01-06:00, Thu., 17 Mar. 0.0306 0.0266 0.0286
04:01-05:00, Thu., 17 Mar. 0.0301 0.0262 0.0283
03:01-04:00, Thu., 17 Mar. 0.0299 0.0266 0.0281
02:01-03:00, Thu., 17 Mar. 0.0298 0.0259 0.0280
01:01-02:00, Thu., 17 Mar. 0.0298 0.0264 0.0280
00:01-01:00, Thu., 17 Mar. 0.0299 0.0264 0.0281
23:01-24:00, Wed., 16 Mar. 0.0299 0.0255 0.0280
22:01-23:00, Wed., 16 Mar. 0.0299 0.0262 0.0280
21:01-22:00, Wed., 16 Mar. 0.0296 0.0261 0.0277
20:01-21:00, Wed., 16 Mar. 0.0296 0.0256 0.0278
19:01-20:00, Wed., 16 Mar. 0.0303 0.0259 0.0278
18:01-19:00, Wed., 16 Mar. 0.0297 0.0260 0.0276
17:01-18:00, Wed., 16 Mar. 0.0297 0.0260 0.0281
16:01-17:00, Wed., 16 Mar. 0.0297 0.0257 0.0277
15:01-16:00, Wed., 16 Mar. 0.0290 0.0258 0.0276
14:01-15:00, Wed., 16 Mar. 0.0286 0.0261 0.0275
13:01-14:00, Wed., 16 Mar. 0.0295 0.0260 0.0279
12:01-13:00, Wed., 16 Mar. 0.0303 0.0248 0.0280
11:01-12:00, Wed., 16 Mar. 0.0309 0.0246 0.0279
10:01-11:00, Wed., 16 Mar. 0.0296 0.0260 0.0282
09:01-10:00, Wed., 16 Mar. 0.0303 0.0267 0.0286
08:01-09:00, Wed., 16 Mar. 0.0306 0.0273 0.0291
07:01-08:00, Wed., 16 Mar. 0.0312 0.0268 0.0289
06:01-07:00, Wed., 16 Mar. 0.0306 0.0269 0.0288
05:01-06:00, Wed., 16 Mar. 0.0306 0.0271 0.0288
04:01-05:00, Wed., 16 Mar. 0.0302 0.0268 0.0283
03:01-04:00, Wed., 16 Mar. 0.0294 0.0268 0.0282
02:01-03:00, Wed., 16 Mar. 0.0304 0.0259 0.0282
01:01-02:00, Wed., 16 Mar. 0.0304 0.0259 0.0279
00:01-01:00, Wed., 16 Mar. 0.0294 0.0258 0.0281
23:01-24:00, Tue., 15 Mar. 0.0304 0.0264 0.0280
22:01-23:00, Tue., 15 Mar. 0.0296 0.0261 0.0281
21:01-22:00, Tue., 15 Mar. 0.0299 0.0259 0.0280
20:01-21:00, Tue., 15 Mar. 0.0304 0.0261 0.0279
19:01-20:00, Tue., 15 Mar. 0.0304 0.0260 0.0281
18:01-19:00, Tue., 15 Mar. 0.0297 0.0257 0.0277
17:01-18:00, Tue., 15 Mar. 0.0298 0.0260 0.0282
16:01-17:00, Tue., 15 Mar. 0.0290 0.0262 0.0275
15:01-16:00, Tue., 15 Mar. 0.0295 0.0260 0.0278
14:01-15:00, Tue., 15 Mar. 0.0294 0.0261 0.0276
13:01-14:00, Tue., 15 Mar. 0.0291 0.0258 0.0275
12:01-13:00, Tue., 15 Mar. 0.0298 0.0261 0.0277
11:01-12:00, Tue., 15 Mar. 0.0299 0.0260 0.0282
10:01-11:00, Tue., 15 Mar. 0.0300 0.0254 0.0277
09:01-10:00, Tue., 15 Mar. 0.0300 0.0266 0.0281
08:01-09:00, Tue., 15 Mar. 0.0306 0.0261 0.0283
07:01-08:00, Tue., 15 Mar. 0.0313 0.0272 0.0292
06:01-07:00, Tue., 15 Mar. 0.0316 0.0280 0.0298
05:01-06:00, Tue., 15 Mar. 0.0322 0.0275 0.0296
04:01-05:00, Tue., 15 Mar. 0.0295 0.0262 0.0280
03:01-04:00, Tue., 15 Mar. 0.0299 0.0259 0.0278
02:01-03:00, Tue., 15 Mar. 0.0298 0.0262 0.0278
01:01-02:00, Tue., 15 Mar. 0.0291 0.0255 0.0277
00:01-01:00, Tue., 15 Mar. 0.0297 0.0253 0.0277
23:01-24:00, Mon., 14 Mar. 0.0298 0.0254 0.0277
22:01-23:00, Mon., 14 Mar. 0.0294 0.0250 0.0275
21:01-22:00, Mon., 14 Mar. 0.0298 0.0255 0.0276
20:01-21:00, Mon., 14 Mar. 0.0293 0.0253 0.0273
19:01-20:00, Mon., 14 Mar. 0.0304 0.0251 0.0272
18:01-19:00, Mon., 14 Mar. 0.0299 0.0255 0.0274
17:01-18:00, Mon., 14 Mar. 0.0292 0.0255 0.0271
16:01-17:00, Mon., 14 Mar. 0.0289 0.0258 0.0271
15:01-16:00, Mon., 14 Mar. 0.0287 0.0253 0.0270
14:01-15:00, Mon., 14 Mar. 0.0291 0.0258 0.0272
13:01-14:00, Mon., 14 Mar. 0.0292 0.0257 0.0271
12:01-13:00, Mon., 14 Mar. 0.0295 0.0254 0.0273
11:01-12:00, Mon., 14 Mar. 0.0298 0.0257 0.0275
10:01-11:00, Mon., 14 Mar. 0.0295 0.0261 0.0278
09:01-10:00, Mon., 14 Mar. 0.0294 0.0250 0.0278
08:01-09:00, Mon., 14 Mar. 0.0311 0.0271 0.0288
07:01-08:00, Mon., 14 Mar. 0.0317 0.0273 0.0301
06:01-07:00, Mon., 14 Mar. 0.0352 0.0301 0.0327
05:01-06:00, Mon., 14 Mar. 0.0333 0.0271 0.0298
04:01-05:00, Mon., 14 Mar. 0.0296 0.0255 0.0277
03:01-04:00, Mon., 14 Mar. 0.0293 0.0251 0.0272
02:01-03:00, Mon., 14 Mar. 0.0295 0.0248 0.0270
01:01-02:00, Mon., 14 Mar. 0.0301 0.0255 0.0277
00:01-01:00, Mon., 14 Mar. 0.0297 0.0260 0.0280