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2010 Dose Data from the Fixed Point Surveillance Network

The Fixed Point Surveillance (FPS) network monitors public radiation dose due to radioactive materials in the atmosphere. The FPS network is used primarily to measure the external dose from three noble gases in particular; Argon-41, Xenon-133 and Xenon-135, as well as the total combined external dose from all sources, measured as Total Air KERMA.

Gentilly System - 2010

Dose Data (nGy/month)
Station Nuclide JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
Leprad Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air KERMA 16124 14992 18797 19204 20054 19768 20015 20139 19708 19665 19214 16596
Boulevard Alphonse-Deshaies Argon-41 - - - - - - x x x x - x
Xenon-133 - - - - - - x x x x - x
Xenon-135 - - - - - - x x x x - x
Total Air KERMA 12403 11172 15960 16454 17924 18491 x x x x 18514 x
Port Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air KERMA 6996 6128 8125 9003 9438 9541 9982 10165 10065 9554 9744 7951
Victoriaville Argon-41 - - x x - - - - - - - -
Xenon-133 - - x x - - - - - - - -
Xenon-135 - - x x - - - - - - - -
Total Air KERMA 14813 13875 x x 19367 19092 20364 19753 19530 19368 18966 15779
Trois Rivières Argon-41 x x x x - - - - - - - -
Xenon-133 x x x x - - - - - - - -
Xenon-135 x x x x - - - - - - - -
Total Air KERMA x x x x 10771 11488 12369 11695 11538 11064 10987 8190
Québec City Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air KERMA 6697 6346 7761 8187 8517 8692 9242 9408 9437 8979 9008 7997
Batiscan Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air KERMA 15524 12253 17893 25753 27619 27118 28076 28435 27800 27090 26259 18187
nGy (nanoGray)

A Gray (Gy) is a standard unit of measurement for radiation dose, defined as 1 Joule of energy deposited per kilogram of matter. A nanoGray (nGy) is 1×10-9 Grays and it is a much more common unit of measure for these types of very low doses.

KERMA (Kinetic Energy Released in Matter)

In this case the 'Total Air KERMA' refers to the radiation dose from all external gamma sources, not just from the three noble gases Argon-41, Xenon-133 and Xenon-135. This includes natural background radiation as well, such as from mineral deposits in the ground, radon gas in the air or cosmic radiation from space.

- (hyphen)

The system has a limit on the amount of low-level radiation it can reliably detect and use to calculate a monthly dose and the hyphens represent any data which falls below this detection limit. The minimum detectable dose for the three noble gases being monitored are...

  • 6 nGy/month for Argon-41
  • 3 nGy/month for Xenon-133
  • 3 nGy/month for Xenon-135

These detection limits are well below the acceptable public dose limit of 1,000,000 nGy/year as published by the  Canadian Nuclear Safety Commission in their  Radiation Protection Regulations.

x

The dose data for this month was not collected due to a problem with the equipment or data transfer.

Bruce System - 2010

Dose Data (nGy/month)
Station Nuclide JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
Site Boundary Argon-41 - 8 28 17 16 - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air KERMA 12038 9743 13371 15290 16227 15655 16632 17036 16225 16181 16236 11964
Scott Point Argon-41 x x x x - - - - - 8 - -
Xenon-133 x x x x - - - - - - - -
Xenon-135 x x x x - - - - - - - -
Total Air KERMA x x x x 11879 11786 12401 12778 12660 12580 12447 10066
Kincardine Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air KERMA 10363 8662 10829 11142 11818 11654 12189 12254 11932 11850 12349 9891
Inverhuron Argon-41 - - 34 20 7 - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air KERMA 9740 7636 10460 11739 12485 12243 12731 12930 12759 12677 12900 10209
Port Elgin Argon-41 - - 7 - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air KERMA 8441 6060 9320 10978 11594 11274 11868 11988 11901 11713 11896 8786
Infocentre Argon-41 x x x x 10 - - - - - - -
Xenon-133 x x x x - - - - - - - -
Xenon-135 x x x x - - - - - - - -
Total Air KERMA x x x x 20169 19453 20795 21473 20267 20306 19875 15186
Tiverton Argon-41 - x x x 7 - - - - - - -
Xenon-133 - x x x - - - - - - - -
Xenon-135 - x x x - - - - - - - -
Total Air KERMA 11209 x x x 16024 15635 16500 16779 16095 16119 16184 11084
Shore Road Argon-41 - 54 - 117 19 7 - - - 11 - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air KERMA 9356 7260 9939 11696 12326 12086 12659 12981 12761 12511 12605 9751
nGy (nanoGray)

A Gray (Gy) is a standard unit of measurement for radiation dose, defined as 1 Joule of energy deposited per kilogram of matter. A nanoGray (nGy) is 1×10-9 Grays and it is a much more common unit of measure for these types of very low doses.

KERMA (Kinetic Energy Released in Matter)

In this case the 'Total Air KERMA' refers to the radiation dose from all external gamma sources, not just from the three noble gases Argon-41, Xenon-133 and Xenon-135. This includes natural background radiation as well, such as from mineral deposits in the ground, radon gas in the air or cosmic radiation from space.

- (hyphen)

The system has a limit on the amount of low-level radiation it can reliably detect and use to calculate a monthly dose and the hyphens represent any data which falls below this detection limit. The minimum detectable dose for the three noble gases being monitored are...

  • 6 nGy/month for Argon-41
  • 3 nGy/month for Xenon-133
  • 3 nGy/month for Xenon-135

These detection limits are well below the acceptable public dose limit of 1,000,000 nGy/year as published by the  Canadian Nuclear Safety Commission in their  Radiation Protection Regulations.

x

The dose data for this month was not collected due to a problem with the equipment or data transfer.

Greater Toronto Area System - 2010

Dose Data (nGy/month)
Station Nuclide JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
Scarborough Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air KERMA 10552 8897 10279 10174 10804 10916 11432 11812 11289 11111 11245 11000
Bowmanville Argon-41 - - - - - - - - - - - x
Xenon-133 - - - - - - - - - - - x
Xenon-135 - - - - - - - - - - - x
Total Air KERMA 17270 15101 17395 17500 18629 18197 18992 19582 18893 18531 18854 x
Resources Road Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air KERMA 8346 6947 8055 8201 8796 8828 9355 9713 9340 9026 8952 8579
St. Clair Avenue East Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air KERMA 12514 10758 12245 12256 12967 12964 13455 13883 13284 13083 13106 12856
Pickering Argon-41 - - 7 - - 14 33 - 7 - 9 -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air KERMA 15786 13726 15829 15909 16863 16454 17252 17646 16924 16851 16559 16261
Oshawa Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air KERMA 14864 13034 14955 14861 15729 15482 16161 16525 15784 15790 15707 15512
Markham Argon-41 - - - 7 - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air KERMA 15924 14035 16319 16514 17439 17048 17752 18119 17483 17394 17057 16631
Ajax Argon-41 x x x - - 17 45 25 31 18 13 28
Xenon-133 x x x - - - - - - - - -
Xenon-135 x x x - - - - - - - - -
Total Air KERMA x x x 21596 23788 21984 23257 24354 23511 23393 22908 22172
Port Hope Argon-41 - - - - - x - - - - - -
Xenon-133 - - - - - x - - - - - -
Xenon-135 - - - - - x - - - - - -
Total Air KERMA 17551 15244 17423 17248 18530 x 18838 19507 18446 17914 17779 17535
nGy (nanoGray)

A Gray (Gy) is a standard unit of measurement for radiation dose, defined as 1 Joule of energy deposited per kilogram of matter. A nanoGray (nGy) is 1×10-9 Grays and it is a much more common unit of measure for these types of very low doses.

KERMA (Kinetic Energy Released in Matter)

In this case the 'Total Air KERMA' refers to the radiation dose from all external gamma sources, not just from the three noble gases Argon-41, Xenon-133 and Xenon-135. This includes natural background radiation as well, such as from mineral deposits in the ground, radon gas in the air or cosmic radiation from space.

- (hyphen)

The system has a limit on the amount of low-level radiation it can reliably detect and use to calculate a monthly dose and the hyphens represent any data which falls below this detection limit. The minimum detectable dose for the three noble gases being monitored are...

  • 6 nGy/month for Argon-41
  • 3 nGy/month for Xenon-133
  • 3 nGy/month for Xenon-135

These detection limits are well below the acceptable public dose limit of 1,000,000 nGy/year as published by the  Canadian Nuclear Safety Commission in their  Radiation Protection Regulations.

x

The dose data for this month was not collected due to a problem with the equipment or data transfer.

Darlington System - 2010

Dose Data (nGy/month)
Station Nuclide JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
Blue Circle Cement Argon-41 - - - - - - 8 - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air KERMA 13897 11731 13798 14173 15099 14811 15353 15969 15422 15196 15139 14392
Bowmanville Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air KERMA 17025 14981 17409 17835 19000 18538 19339 20123 19256 19214 18896 18116
Site #3 Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air KERMA 18460 16549 19124 19494 20920 20264 21161 21880 20898 20858 20706 19508
Site #4 Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air KERMA 15430 13581 15868 16125 17163 17332 18003 18948 18593 18011 17952 16812
Site #5 Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air KERMA 14485 12878 15057 15161 16240 15998 16511 17134 16548 16343 16396 15502
Site #6 Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air KERMA 19424 17132 19567 19666 21031 20324 21406 22525 21867 21462 20789 20250
nGy (nanoGray)

A Gray (Gy) is a standard unit of measurement for radiation dose, defined as 1 Joule of energy deposited per kilogram of matter. A nanoGray (nGy) is 1×10-9 Grays and it is a much more common unit of measure for these types of very low doses.

KERMA (Kinetic Energy Released in Matter)

In this case the 'Total Air KERMA' refers to the radiation dose from all external gamma sources, not just from the three noble gases Argon-41, Xenon-133 and Xenon-135. This includes natural background radiation as well, such as from mineral deposits in the ground, radon gas in the air or cosmic radiation from space.

- (hyphen)

The system has a limit on the amount of low-level radiation it can reliably detect and use to calculate a monthly dose and the hyphens represent any data which falls below this detection limit. The minimum detectable dose for the three noble gases being monitored are...

  • 6 nGy/month for Argon-41
  • 3 nGy/month for Xenon-133
  • 3 nGy/month for Xenon-135

These detection limits are well below the acceptable public dose limit of 1,000,000 nGy/year as published by the  Canadian Nuclear Safety Commission in their  Radiation Protection Regulations.

x

The dose data for this month was not collected due to a problem with the equipment or data transfer.

Pickering System - 2010

Dose Data (nGy/month)
Station Nuclide JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
Montgomery Road Argon-41 121 54 287 68 21 206 995 344 396 193 161 187
Xenon-133 - - 6 - - - 15 - 4 5 - -
Xenon-135 - - - - - 10 27 15 13 8 10 4
Total Air KERMA 14896 12798 15163 15433 16604 16438 17597 17963 17521 16767 16623 15918
Kinsmen Park Argon-41 9 10 62 67 121 182 308 153 207 82 166 131
Xenon-133 - - - - - - 4 - - - 3 -
Xenon-135 - - - - - - - - - - - 3
Total Air KERMA 15141 13313 15330 15593 16850 16358 17018 17660 17054 16464 16374 15696
Liverpool Road Argon-4 - 11 24 33 10 100 189 47 81 30 85 24
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air KERMA 15258 13302 15562 15804 16939 16496 17212 17740 17214 16829 16629 16042
East Boundary Argon-41 131 145 168 38 11 97 312 153 237 117 97 228
Xenon-133 - - 3 - - - 4 - - 3 - -
Xenon-135 - - - - - 4 8 3 5 3 7 19
Total Air KERMA 20439 18109 20902 20982 22178 21406 22642 22988 22277 21865 21524 21340
Central Maintenance Argon-41 11 13 265 221 36 397 638 312 380 178 228 100
Xenon-133 - - 4 4 - 5 9 3 4 4 4 -
Xenon-135 - - - - 5 3 5 - 4 - 4 5
Total Air KERMA 11412 9845 11744 11928 12652 12806 13434 13679 13252 12536 12708 12144
Beachpoint Promenade Argon-41 11 - 25 47 7 49 115 76 56 34 62 9
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air KERMA 10800 9044 10766 11382 11991 11714 12390 12673 12345 12018 12070 11660
Petticoat Creek Argon-41 17 - 46 55 7 42 39 22 28 44 26 7
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air KERMA 15862 13313 15855 16799 18659 18732 19003 20053 18703 18541 18121 16322
CMS Storage Yard Argon-41 26 21 331 171 27 430 1107 474 566 233 212 69
Xenon-133 - - 6 4 - 7 19 6 8 6 4 -
Xenon-135 - - - - - 5 8 6 5 - 8 4
Total Air KERMA 9573 8131 9735 9716 10268 10487 11447 11445 11292 10432 11728 10436
Alex Robertson Road Argon-41 - 8 39 39 12 119 209 104 101 43 92 88
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air KERMA 18947 16125 19280 20305 21805 21440 21941 23068 22412 22087 21600 20271
nGy (nanoGray)

A Gray (Gy) is a standard unit of measurement for radiation dose, defined as 1 Joule of energy deposited per kilogram of matter. A nanoGray (nGy) is 1×10-9 Grays and it is a much more common unit of measure for these types of very low doses.

KERMA (Kinetic Energy Released in Matter)

In this case the 'Total Air KERMA' refers to the radiation dose from all external gamma sources, not just from the three noble gases Argon-41, Xenon-133 and Xenon-135. This includes natural background radiation as well, such as from mineral deposits in the ground, radon gas in the air or cosmic radiation from space.

- (hyphen)

The system has a limit on the amount of low-level radiation it can reliably detect and use to calculate a monthly dose and the hyphens represent any data which falls below this detection limit. The minimum detectable dose for the three noble gases being monitored are...

  • 6 nGy/month for Argon-41
  • 3 nGy/month for Xenon-133
  • 3 nGy/month for Xenon-135

These detection limits are well below the acceptable public dose limit of 1,000,000 nGy/year as published by the  Canadian Nuclear Safety Commission in their  Radiation Protection Regulations.

x

The dose data for this month was not collected due to a problem with the equipment or data transfer.

Ottawa Valley System - 2010

Dose Data (nGy/month)
Station Nuclide JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
Chapeau Argon-41 - - - - - - - 7 228 200 83 159
Xenon-133 - - - - - - - - 6 13 3 9
Xenon-135 - - - - - - - 4 16 33 - 11
Total Air KERMA 15019 13093 18213 21204 22883 22810 23886 24348 23562 22766 21719 18436
Chalk River Argon-41 - - - - - - - 380 341 275 270 x
Xenon-133 - - - - - - - 8 11 7 20 x
Xenon-135 - - - - - - - 13 32 15 25 x
Total Air KERMA 24247 20223 29083 31195 32623 31782 33149 33648 32807 33132 31475 x
Deep River Argon-41 - - - - - x - 1299 1713 338 1312 299
Xenon-133 - - - - - x - 34 47 24 62 18
Xenon-135 - - - - - x - 127 29 49 166 -
Total Air KERMA 21906 18391 25541 28804 30420 x 30573 32706 31530 30529 30402 27113
Ottawa Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air KERMA 9607 9212 12009 12202 12802 12520 12993 13354 13061 12638 12445 11765
Petawawa Argon-41 - - - - - - - 63 343 356 136 365
Xenon-133 - - - - - - - - 7 9 4 9
Xenon-135 - - - - - - - - - 16 - 12
Total Air KERMA 13798 12086 17490 19412 20353 20020 20898 21207 20989 20912 19972 17289
Sheenboro Argon-41 - - - - - - - 63 168 644 440 649
Xenon-133 - - - - - - - 10 6 28 12 24
Xenon-135 - - - - - - - 28 - 45 6 34
Total Air KERMA 13860 12192 17730 20677 21847 21547 22562 22902 22208 22538 21304 18185
Westmeath Argon-41 - - - - - - - x x 24 38 55
Xenon-133 - - - - - - - x x - - -
Xenon-135 - - - - - -   x x - - -
Total Air KERMA 13146 10915 15348 18702 20395 20366 21141 x x 21719 20629 18133
nGy (nanoGray)

A Gray (Gy) is a standard unit of measurement for radiation dose, defined as 1 Joule of energy deposited per kilogram of matter. A nanoGray (nGy) is 1×10-9 Grays and it is a much more common unit of measure for these types of very low doses.

KERMA (Kinetic Energy Released in Matter)

In this case the 'Total Air KERMA' refers to the radiation dose from all external gamma sources, not just from the three noble gases Argon-41, Xenon-133 and Xenon-135. This includes natural background radiation as well, such as from mineral deposits in the ground, radon gas in the air or cosmic radiation from space.

- (hyphen)

The system has a limit on the amount of low-level radiation it can reliably detect and use to calculate a monthly dose and the hyphens represent any data which falls below this detection limit. The minimum detectable dose for the three noble gases being monitored are...

  • 6 nGy/month for Argon-41
  • 3 nGy/month for Xenon-133
  • 3 nGy/month for Xenon-135

These detection limits are well below the acceptable public dose limit of 1,000,000 nGy/year as published by the  Canadian Nuclear Safety Commission in their  Radiation Protection Regulations.

x

The dose data for this month was not collected due to a problem with the equipment or data transfer.

Regional System - 2010

Dose Data (nGy/month)
Station Nuclide JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
Amherstburg Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air KERMA 16116 13615 15924 15948 16744 16378 18413 18680 18156 18101 18310 16091
Vancouver Argon-41 - - - 51 48 45 61 51 9 32 46 -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air KERMA 14565 13044 13808 13362 13705 13061 14016 14159 13123 13906 13706 13535
Yellowknife Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air KERMA 17049 14232 15119 19688 28439 28429 29335 29282 28660 27564 23497 22099
Regina Argon-41 - - - - - - - - x - - -
Xenon-133 - - - - - - - - x - - -
Xenon-135 - - - - - - - - x - - -
Total Air KERMA 20659 15838 16425 23325 24715 23988 26392 26868 x 27021 23063 18667
Calgary Argon-41 x x x x - - - - - - - -
Xenon-133 x x x x - - - - - - - -
Xenon-135 x x x x - - - - - - - -
Total Air KERMA x x x x 14791 13941 14822 14952 15255 15288 14438 15474
Winnipeg Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air KERMA 12079 9923 11836 11972 12692 11937 12906 13375 11847 12981 11908 10802
Thunder Bay Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air KERMA 13868 11855 14023 13490 14211 14109 14869 15217 14817 15544 14340 13977
Montréal Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air KERMA 13352 12029 13619 13325 13857 13867 14242 14579 14048 14058 13797 13383
Charlottetown Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air KERMA 16193 14100 16456 16119 16807 16731 17231 17303 16908 17050 16433 16717
St. John's Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air KERMA 21392 17748 21213 21328 22197 20985 21588 21242 20726 21346 20372 21181
nGy (nanoGray)

A Gray (Gy) is a standard unit of measurement for radiation dose, defined as 1 Joule of energy deposited per kilogram of matter. A nanoGray (nGy) is 1×10-9 Grays and it is a much more common unit of measure for these types of very low doses.

KERMA (Kinetic Energy Released in Matter)

In this case the 'Total Air KERMA' refers to the radiation dose from all external gamma sources, not just from the three noble gases Argon-41, Xenon-133 and Xenon-135. This includes natural background radiation as well, such as from mineral deposits in the ground, radon gas in the air or cosmic radiation from space.

- (hyphen)

The system has a limit on the amount of low-level radiation it can reliably detect and use to calculate a monthly dose and the hyphens represent any data which falls below this detection limit. The minimum detectable dose for the three noble gases being monitored are...

  • 6 nGy/month for Argon-41
  • 3 nGy/month for Xenon-133
  • 3 nGy/month for Xenon-135

These detection limits are well below the acceptable public dose limit of 1,000,000 nGy/year as published by the  Canadian Nuclear Safety Commission in their  Radiation Protection Regulations.

x

The dose data for this month was not collected due to a problem with the equipment or data transfer.

Point Lepreau System - 2010

Dose Data (nGy/month)
Station Nuclide JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
Lighthouse Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air KERMA 21661 21469 24942 24432 25830 25355 26024 26025 25558 25661 24644 24578
Digby Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air KERMA 32572 29359 33631 32597 33894 33242 34225 34265 33376 34164 33149 34000
Dipper Harbour Argon-41 x x - - - x - - - - - -
Xenon-133 x x - - - x - - - - - -
Xenon-135 x x - - - x - - - - - -
Total Air KERMA x x 27498 27770 29950 x 29758 29723 29041 29017 28326 28297
Emergency Centre Argon-41 x x - - - - - - - - - -
Xenon-133 x x - - - - - - - - - -
Xenon-135 x x - - - - - - - - - -
Total Air KERMA x x 37122 41057 42818 42067 43527 43894 42097 43014 41203 40176
Saint John Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air KERMA 19845 19156 21357 20580 21398 21137 21669 21626 21164 21611 21079 21395
Welch Cove Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air KERMA 11873 11675 15960 16753 18361 17688 18603 18953 19040 18443 17025 16607
Kingston Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air KERMA 16675 15443 18732 18368 19196 19135 19527 19742 19129 19390 18864 18706
nGy (nanoGray)

A Gray (Gy) is a standard unit of measurement for radiation dose, defined as 1 Joule of energy deposited per kilogram of matter. A nanoGray (nGy) is 1×10-9 Grays and it is a much more common unit of measure for these types of very low doses.

KERMA (Kinetic Energy Released in Matter)

In this case the 'Total Air KERMA' refers to the radiation dose from all external gamma sources, not just from the three noble gases Argon-41, Xenon-133 and Xenon-135. This includes natural background radiation as well, such as from mineral deposits in the ground, radon gas in the air or cosmic radiation from space.

- (hyphen)

The system has a limit on the amount of low-level radiation it can reliably detect and use to calculate a monthly dose and the hyphens represent any data which falls below this detection limit. The minimum detectable dose for the three noble gases being monitored are...

  • 6 nGy/month for Argon-41
  • 3 nGy/month for Xenon-133
  • 3 nGy/month for Xenon-135

These detection limits are well below the acceptable public dose limit of 1,000,000 nGy/year as published by the  Canadian Nuclear Safety Commission in their  Radiation Protection Regulations.

x

The dose data for this month was not collected due to a problem with the equipment or data transfer.

Vancouver Island System - 2010

Dose Data (nGy/month)
Station Nuclide JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
Saanich Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air KERMA 11349 9909 10580 10095 10723 10368 11082 11213 10837 11041 10746 10911
Metchosin Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air KERMA 8816 7763 8265 8028 8322 7985 8861 8935 8497 8538 8274 8505
Victoria Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air KERMA 7669 6630 7003 6829 7093 6661 7059 7121 7118 7289 7256 7491
Nanaimo Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air KERMA 11667 10428 10717 10508 10871 10259 10730 11015 10784 11179 10959 11802
Sidney Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air KERMA 12366 10915 11554 11197 11777 11368 12545 12771 12080 11979 11534 12108
nGy (nanoGray)

A Gray (Gy) is a standard unit of measurement for radiation dose, defined as 1 Joule of energy deposited per kilogram of matter. A nanoGray (nGy) is 1×10-9 Grays and it is a much more common unit of measure for these types of very low doses.

KERMA (Kinetic Energy Released in Matter)

In this case the 'Total Air KERMA' refers to the radiation dose from all external gamma sources, not just from the three noble gases Argon-41, Xenon-133 and Xenon-135. This includes natural background radiation as well, such as from mineral deposits in the ground, radon gas in the air or cosmic radiation from space.

- (hyphen)

The system has a limit on the amount of low-level radiation it can reliably detect and use to calculate a monthly dose and the hyphens represent any data which falls below this detection limit. The minimum detectable dose for the three noble gases being monitored are...

  • 6 nGy/month for Argon-41
  • 3 nGy/month for Xenon-133
  • 3 nGy/month for Xenon-135

These detection limits are well below the acceptable public dose limit of 1,000,000 nGy/year as published by the  Canadian Nuclear Safety Commission in their  Radiation Protection Regulations.

x

The dose data for this month was not collected due to a problem with the equipment or data transfer.

Halifax System - 2010

Dose Data (nGy/month)
Station Nuclide JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
West Street Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air KERMA 23017 21858 24799 24492 25086 24867 25353 24669 24563 25533 24932 25612
Dartmouth Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air KERMA 21734 19998 23482 22810 23775 23462 24328 24522 23857 24164 23240 23709
Cole Harbour Road Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air KERMA 21967 20007 23672 22886 23924 23582 24363 24711 24131 24325 23285 23932
nGy (nanoGray)

A Gray (Gy) is a standard unit of measurement for radiation dose, defined as 1 Joule of energy deposited per kilogram of matter. A nanoGray (nGy) is 1×10-9 Grays and it is a much more common unit of measure for these types of very low doses.

KERMA (Kinetic Energy Released in Matter)

In this case the 'Total Air KERMA' refers to the radiation dose from all external gamma sources, not just from the three noble gases Argon-41, Xenon-133 and Xenon-135. This includes natural background radiation as well, such as from mineral deposits in the ground, radon gas in the air or cosmic radiation from space.

- (hyphen)

The system has a limit on the amount of low-level radiation it can reliably detect and use to calculate a monthly dose and the hyphens represent any data which falls below this detection limit. The minimum detectable dose for the three noble gases being monitored are...

  • 6 nGy/month for Argon-41
  • 3 nGy/month for Xenon-133
  • 3 nGy/month for Xenon-135

These detection limits are well below the acceptable public dose limit of 1,000,000 nGy/year as published by the  Canadian Nuclear Safety Commission in their  Radiation Protection Regulations.

x

The dose data for this month was not collected due to a problem with the equipment or data transfer.

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