Measurement results by the hour (Chofu) 1 Mar., 2021 - 7 Mar., 2021

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., 07 Mar. 0.0299 0.0261 0.0277
22:01-23:00, Sun., 07 Mar. 0.0299 0.0254 0.0276
21:01-22:00, Sun., 07 Mar. 0.0294 0.0255 0.0273
20:01-21:00, Sun., 07 Mar. 0.0294 0.0251 0.0273
19:01-20:00, Sun., 07 Mar. 0.0291 0.0254 0.0273
18:01-19:00, Sun., 07 Mar. 0.0300 0.0251 0.0274
17:01-18:00, Sun., 07 Mar. 0.0296 0.0252 0.0274
16:01-17:00, Sun., 07 Mar. 0.0289 0.0252 0.0273
15:01-16:00, Sun., 07 Mar. 0.0291 0.0255 0.0274
14:01-15:00, Sun., 07 Mar. 0.0299 0.0251 0.0273
13:01-14:00, Sun., 07 Mar. 0.0290 0.0253 0.0274
12:01-13:00, Sun., 07 Mar. 0.0294 0.0259 0.0275
11:01-12:00, Sun., 07 Mar. 0.0298 0.0252 0.0275
10:01-11:00, Sun., 07 Mar. 0.0296 0.0257 0.0276
09:01-10:00, Sun., 07 Mar. 0.0293 0.0257 0.0275
08:01-09:00, Sun., 07 Mar. 0.0297 0.0260 0.0275
07:01-08:00, Sun., 07 Mar. 0.0291 0.0250 0.0276
06:01-07:00, Sun., 07 Mar. 0.0295 0.0263 0.0277
05:01-06:00, Sun., 07 Mar. 0.0297 0.0252 0.0281
04:01-05:00, Sun., 07 Mar. 0.0306 0.0261 0.0282
03:01-04:00, Sun., 07 Mar. 0.0308 0.0257 0.0282
02:01-03:00, Sun., 07 Mar. 0.0296 0.0261 0.0280
01:01-02:00, Sun., 07 Mar. 0.0297 0.0261 0.0281
00:01-01:00, Sun., 07 Mar. 0.0299 0.0262 0.0280
23:01-24:00, Sat., 06 Mar. 0.0300 0.0267 0.0281
22:01-23:00, Sat., 06 Mar. 0.0297 0.0255 0.0279
21:01-22:00, Sat., 06 Mar. 0.0304 0.0266 0.0281
20:01-21:00, Sat., 06 Mar. 0.0297 0.0260 0.0280
19:01-20:00, Sat., 06 Mar. 0.0294 0.0257 0.0279
18:01-19:00, Sat., 06 Mar. 0.0296 0.0260 0.0275
17:01-18:00, Sat., 06 Mar. 0.0297 0.0260 0.0275
16:01-17:00, Sat., 06 Mar. 0.0296 0.0252 0.0275
15:01-16:00, Sat., 06 Mar. 0.0297 0.0253 0.0272
14:01-15:00, Sat., 06 Mar. 0.0294 0.0254 0.0272
13:01-14:00, Sat., 06 Mar. 0.0294 0.0259 0.0274
12:01-13:00, Sat., 06 Mar. 0.0305 0.0263 0.0281
11:01-12:00, Sat., 06 Mar. 0.0308 0.0262 0.0284
10:01-11:00, Sat., 06 Mar. 0.0301 0.0264 0.0282
09:01-10:00, Sat., 06 Mar. 0.0296 0.0262 0.0283
08:01-09:00, Sat., 06 Mar. 0.0312 0.0260 0.0287
07:01-08:00, Sat., 06 Mar. 0.0309 0.0266 0.0289
06:01-07:00, Sat., 06 Mar. 0.0306 0.0263 0.0285
05:01-06:00, Sat., 06 Mar. 0.0295 0.0259 0.0280
04:01-05:00, Sat., 06 Mar. 0.0297 0.0256 0.0279
03:01-04:00, Sat., 06 Mar. 0.0299 0.0263 0.0278
02:01-03:00, Sat., 06 Mar. 0.0296 0.0258 0.0277
01:01-02:00, Sat., 06 Mar. 0.0292 0.0250 0.0278
00:01-01:00, Sat., 06 Mar. 0.0310 0.0268 0.0284
23:01-24:00, Fri., 05 Mar. 0.0316 0.0276 0.0295
22:01-23:00, Fri., 05 Mar. 0.0329 0.0282 0.0301
21:01-22:00, Fri., 05 Mar. 0.0318 0.0277 0.0301
20:01-21:00, Fri., 05 Mar. 0.0337 0.0271 0.0305
19:01-20:00, Fri., 05 Mar. 0.0339 0.0287 0.0308
18:01-19:00, Fri., 05 Mar. 0.0348 0.0303 0.0329
17:01-18:00, Fri., 05 Mar. 0.0337 0.0280 0.0313
16:01-17:00, Fri., 05 Mar. 0.0313 0.0259 0.0277
15:01-16:00, Fri., 05 Mar. 0.0293 0.0255 0.0274
14:01-15:00, Fri., 05 Mar. 0.0294 0.0256 0.0275
13:01-14:00, Fri., 05 Mar. 0.0298 0.0259 0.0277
12:01-13:00, Fri., 05 Mar. 0.0294 0.0252 0.0276
11:01-12:00, Fri., 05 Mar. 0.0302 0.0260 0.0278
10:01-11:00, Fri., 05 Mar. 0.0297 0.0263 0.0279
09:01-10:00, Fri., 05 Mar. 0.0301 0.0261 0.0280
08:01-09:00, Fri., 05 Mar. 0.0302 0.0259 0.0282
07:01-08:00, Fri., 05 Mar. 0.0301 0.0269 0.0285
06:01-07:00, Fri., 05 Mar. 0.0308 0.0266 0.0286
05:01-06:00, Fri., 05 Mar. 0.0306 0.0264 0.0285
04:01-05:00, Fri., 05 Mar. 0.0305 0.0272 0.0288
03:01-04:00, Fri., 05 Mar. 0.0302 0.0268 0.0286
02:01-03:00, Fri., 05 Mar. 0.0302 0.0264 0.0287
01:01-02:00, Fri., 05 Mar. 0.0296 0.0265 0.0280
00:01-01:00, Fri., 05 Mar. 0.0297 0.0256 0.0277
23:01-24:00, Thu., 04 Mar. 0.0296 0.0256 0.0274
22:01-23:00, Thu., 04 Mar. 0.0294 0.0262 0.0276
21:01-22:00, Thu., 04 Mar. 0.0301 0.0253 0.0275
20:01-21:00, Thu., 04 Mar. 0.0296 0.0251 0.0274
19:01-20:00, Thu., 04 Mar. 0.0299 0.0261 0.0276
18:01-19:00, Thu., 04 Mar. 0.0299 0.0254 0.0275
17:01-18:00, Thu., 04 Mar. 0.0294 0.0247 0.0272
16:01-17:00, Thu., 04 Mar. 0.0288 0.0253 0.0274
15:01-16:00, Thu., 04 Mar. 0.0302 0.0251 0.0275
14:01-15:00, Thu., 04 Mar. 0.0296 0.0250 0.0273
13:01-14:00, Thu., 04 Mar. 0.0302 0.0251 0.0274
12:01-13:00, Thu., 04 Mar. 0.0298 0.0258 0.0277
11:01-12:00, Thu., 04 Mar. 0.0295 0.0262 0.0279
10:01-11:00, Thu., 04 Mar. 0.0297 0.0264 0.0282
09:01-10:00, Thu., 04 Mar. 0.0300 0.0266 0.0282
08:01-09:00, Thu., 04 Mar. 0.0307 0.0261 0.0284
07:01-08:00, Thu., 04 Mar. 0.0305 0.0264 0.0287
06:01-07:00, Thu., 04 Mar. 0.0306 0.0264 0.0282
05:01-06:00, Thu., 04 Mar. 0.0303 0.0259 0.0284
04:01-05:00, Thu., 04 Mar. 0.0297 0.0265 0.0281
03:01-04:00, Thu., 04 Mar. 0.0307 0.0261 0.0281
02:01-03:00, Thu., 04 Mar. 0.0292 0.0258 0.0276
01:01-02:00, Thu., 04 Mar. 0.0296 0.0259 0.0275
00:01-01:00, Thu., 04 Mar. 0.0298 0.0258 0.0276
23:01-24:00, Wed., 03 Mar. 0.0297 0.0258 0.0275
22:01-23:00, Wed., 03 Mar. 0.0294 0.0255 0.0275
21:01-22:00, Wed., 03 Mar. 0.0293 0.0253 0.0274
20:01-21:00, Wed., 03 Mar. 0.0293 0.0261 0.0274
19:01-20:00, Wed., 03 Mar. 0.0292 0.0252 0.0272
18:01-19:00, Wed., 03 Mar. 0.0299 0.0247 0.0276
17:01-18:00, Wed., 03 Mar. 0.0291 0.0257 0.0274
16:01-17:00, Wed., 03 Mar. 0.0291 0.0254 0.0273
15:01-16:00, Wed., 03 Mar. 0.0298 0.0257 0.0277
14:01-15:00, Wed., 03 Mar. 0.0299 0.0256 0.0277
13:01-14:00, Wed., 03 Mar. 0.0295 0.0252 0.0277
12:01-13:00, Wed., 03 Mar. 0.0295 0.0261 0.0276
11:01-12:00, Wed., 03 Mar. 0.0296 0.0259 0.0278
10:01-11:00, Wed., 03 Mar. 0.0298 0.0261 0.0278
09:01-10:00, Wed., 03 Mar. 0.0308 0.0254 0.0279
08:01-09:00, Wed., 03 Mar. 0.0297 0.0261 0.0280
07:01-08:00, Wed., 03 Mar. 0.0298 0.0263 0.0279
06:01-07:00, Wed., 03 Mar. 0.0298 0.0259 0.0279
05:01-06:00, Wed., 03 Mar. 0.0301 0.0259 0.0281
04:01-05:00, Wed., 03 Mar. 0.0297 0.0259 0.0279
03:01-04:00, Wed., 03 Mar. 0.0299 0.0262 0.0280
02:01-03:00, Wed., 03 Mar. 0.0297 0.0265 0.0281
01:01-02:00, Wed., 03 Mar. 0.0304 0.0262 0.0283
00:01-01:00, Wed., 03 Mar. 0.0309 0.0264 0.0284
23:01-24:00, Tue., 02 Mar. 0.0308 0.0272 0.0288
22:01-23:00, Tue., 02 Mar. 0.0337 0.0281 0.0308
21:01-22:00, Tue., 02 Mar. 0.0391 0.0324 0.0353
20:01-21:00, Tue., 02 Mar. 0.0378 0.0307 0.0346
19:01-20:00, Tue., 02 Mar. 0.0386 0.0304 0.0337
18:01-19:00, Tue., 02 Mar. 0.0469 0.0369 0.0408
17:01-18:00, Tue., 02 Mar. 0.0476 0.0298 0.0381
16:01-17:00, Tue., 02 Mar. 0.0330 0.0292 0.0311
15:01-16:00, Tue., 02 Mar. 0.0350 0.0293 0.0317
14:01-15:00, Tue., 02 Mar. 0.0327 0.0272 0.0299
13:01-14:00, Tue., 02 Mar. 0.0304 0.0257 0.0278
12:01-13:00, Tue., 02 Mar. 0.0299 0.0256 0.0277
11:01-12:00, Tue., 02 Mar. 0.0294 0.0256 0.0275
10:01-11:00, Tue., 02 Mar. 0.0298 0.0261 0.0278
09:01-10:00, Tue., 02 Mar. 0.0301 0.0254 0.0278
08:01-09:00, Tue., 02 Mar. 0.0287 0.0258 0.0272
07:01-08:00, Tue., 02 Mar. 0.0292 0.0262 0.0274
06:01-07:00, Tue., 02 Mar. 0.0288 0.0258 0.0273
05:01-06:00, Tue., 02 Mar. 0.0294 0.0259 0.0274
04:01-05:00, Tue., 02 Mar. 0.0295 0.0256 0.0275
03:01-04:00, Tue., 02 Mar. 0.0296 0.0257 0.0276
02:01-03:00, Tue., 02 Mar. 0.0292 0.0254 0.0273
01:01-02:00, Tue., 02 Mar. 0.0298 0.0247 0.0280
00:01-01:00, Tue., 02 Mar. 0.0296 0.0255 0.0281
23:01-24:00, Mon., 01 Mar. 0.0300 0.0253 0.0277
22:01-23:00, Mon., 01 Mar. 0.0302 0.0259 0.0276
21:01-22:00, Mon., 01 Mar. 0.0308 0.0259 0.0273
20:01-21:00, Mon., 01 Mar. 0.0290 0.0252 0.0270
19:01-20:00, Mon., 01 Mar. 0.0289 0.0258 0.0272
18:01-19:00, Mon., 01 Mar. 0.0294 0.0253 0.0273
17:01-18:00, Mon., 01 Mar. 0.0293 0.0251 0.0273
16:01-17:00, Mon., 01 Mar. 0.0295 0.0251 0.0275
15:01-16:00, Mon., 01 Mar. 0.0303 0.0254 0.0274
14:01-15:00, Mon., 01 Mar. 0.0301 0.0256 0.0276
13:01-14:00, Mon., 01 Mar. 0.0300 0.0257 0.0277
12:01-13:00, Mon., 01 Mar. 0.0301 0.0250 0.0278
11:01-12:00, Mon., 01 Mar. 0.0306 0.0267 0.0286
10:01-11:00, Mon., 01 Mar. 0.0315 0.0271 0.0288
09:01-10:00, Mon., 01 Mar. 0.0317 0.0270 0.0291
08:01-09:00, Mon., 01 Mar. 0.0324 0.0282 0.0302
07:01-08:00, Mon., 01 Mar. 0.0333 0.0289 0.0308
06:01-07:00, Mon., 01 Mar. 0.0331 0.0284 0.0306
05:01-06:00, Mon., 01 Mar. 0.0326 0.0280 0.0302
04:01-05:00, Mon., 01 Mar. 0.0313 0.0280 0.0297
03:01-04:00, Mon., 01 Mar. 0.0313 0.0273 0.0292
02:01-03:00, Mon., 01 Mar. 0.0311 0.0272 0.0288
01:01-02:00, Mon., 01 Mar. 0.0309 0.0271 0.0290
00:01-01:00, Mon., 01 Mar. 0.0302 0.0267 0.0286