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2025 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.

For all of the tables on this page, the following definitions apply:

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 1x10 -6 milliSieverts (mSv) 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 or radon gas in the air.
- (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 mSv/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.
Blank cell
The dose data for this month has not been collected yet.

The tables below show the most recent dose data available from the FPS network. Data is normally updated quarterly. (Last update: September 2nd , 2025)

Gentilly system - 2025
Dose Data (nGy/month)
Station Nuclide Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
La Prade Argon-41 - - - - - - x x x x x x
Xenon-133 - - - - - - x x x x x x
Xenon-135 - - - - - - x x x x x x
Total Air
KERMA		 19275 16276 19823 21268 21974 21479 x x x x x x
Port Argon-41 - - - - - - x x x x x x
Xenon-133 - - - - - - x x x x x x
Xenon-135 - - - - - - x x x x x x
Total Air
KERMA		 8750 6962 7936 8482 8784 9032 x x x x x x
Victoriaville Argon-41 - - - - - - x x x x x x
Xenon-133 - - - - - - x x x x x x
Xenon-135 - - - - - - x x x x x x
Total Air
KERMA		 16929 13033 18073 20195 21220 20685 x x x x x x
Trois Rivières Argon-41 - - - - - - x x x x x x
Xenon-133 - - - - - - x x x x x x
Xenon-135 - - - - - - x x x x x x
Total Air
KERMA		 12281 9297 10985 13073 14126 13961 x x x x x x
Québec City Argon-41 - - - - - - x x x x x x
Xenon-133 - - - - - - x x x x x x
Xenon-135 - - - - - - x x x x x x
Total Air
KERMA		 9374 7768 9178 9639 10160 10221 x x x x x x

- (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.

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

Blank cell: The dose data for this month has not been collected yet.
Bruce system - 2025
Dose Data (nGy/month)
Station Nuclide Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Site
Boundary		 Argon-41 - - - - - - x x x x x x
Xenon-133 - - - - - - x x x x x x
Xenon-135 - - - - - - x x x x x x
Total Air
KERMA		 11400 6197 11467 13357 13957 14561 x x x x x x
Scott Point Argon-41 x x x x x x x x x x x x
Xenon-133 x x x x x x x x x x x x
Xenon-135 x x x x x x x x x x x x
Total Air
KERMA		 x x x x x x x x x x x x
Kincardine Argon-41 - - - - - - x x x x x x
Xenon-133 - - - - - - x x x x x x
Xenon-135 - - - - - - x x x x x x
Total Air
KERMA		 10992 15163 10938 15329 16170 15917 x x x x x x
Inverhuron Argon-41 x x x x x x x x x x x x
Xenon-133 x x x x x x x x x x x x
Xenon-135 x x x x x x x x x x x x
Total Air
KERMA		 x x x x x x x x x x x x
Port Elgin Argon-41 - - - - - - x x x x x x
Xenon-133 - - - - - - x x x x x x
Xenon-135 - - - - - - x x x x x x
Total Air
KERMA		 10938 6964 10794 12154 12804 12649 x x x x x x
Infocentre Argon-41 - - - - - - x x x x x x
Xenon-133 - - - - - - x x x x x x
Xenon-135 - - - - - - x x x x x x
Total Air
KERMA		 19698 12480 19987 21291 22219 22237 x x x x x x
Tiverton Argon-41 - - - - - - x x x x x x
Xenon-133 - - - - - - x x x x x x
Xenon-135 - - - - - - x x x x x x
Total Air
KERMA		 14479 8511 14648 17454 18500 18133 x x x x x x
Shore Road Argon-41 x x x x x x x x x x x x
Xenon-133 x x x x x x x x x x x x
Xenon-135 x x x x x x x x x x x x
Total Air
KERMA		 x x x x x x x x x x x x

- (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.

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

Blank cell: The dose data for this month has not been collected yet.
Greater Toronto Area/Lake Ontario system - 2025
Dose Data (nGy/month)
Station Nuclide Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Scarborough Argon-41 - - - - - - x x x x x x
Xenon-133 - - - - - - x x x x x x
Xenon-135 - - - - - - x x x x x x
Total Air
KERMA		 12131 10184 11891 11479 12357 11909 x x x x x x
Bowmanville Argon-41 - - - - - - x x x x x x
Xenon-133 - - - - - - x x x x x x
Xenon-135 - - - - - - x x x x x x
Total Air
KERMA		 30068 21215 28444 29870 31400 30678 x x x x x x
Mississauga Argon-41 - - - - - - x x x x x x
Xenon-133 - - - - - - x x x x x x
Xenon-135 - - - - - - x x x x x x
Total Air
KERMA		 12296 9950 12093 12065 12766 12560 x x x x x x
Toronto Argon-41 - - - - - - x x x x x x
Xenon-133 - - - - - - x x x x x x
Xenon-135 - - - - - - x x x x x x
Total Air
KERMA		 12244 9782 11886 11743 12672 12178 x x x x x x
Pickering Argon-41 - - - - - - x x x x x x
Xenon-133 - - - - - - x x x x x x
Xenon-135 - - - - - - x x x x x x
Total Air
KERMA		 15742 12326 15027 15254 16288 15983 x x x x x x
Oshawa Argon-41 - - - - - - x x x x x x
Xenon-133 - - - - - - x x x x x x
Xenon-135 - - - - - - x x x x x x
Total Air
KERMA		 13097 10454 12713 12699 13578 13207 x x x x x x
Markham Argon-41 x x - - - - x x x x x x
Xenon-133 x x - - - - x x x x x x
Xenon-135 x x - - - - x x x x x x
Total Air
KERMA		 x x 14741 14887 15851 15421 x x x x x x
Ajax Argon-41 - - - - - - x x x x x x
Xenon-133 - - - - - - x x x x x x
Xenon-135 - - - - - - x x x x x x
Total Air
KERMA		 21653 16496 20152 20512 21706 21728 x x x x x x
Port Hope Argon-41 - - - - - - x x x x x x
Xenon-133 - - - - - - x x x x x x
Xenon-135 - - - - - - x x x x x x
Total Air
KERMA		 18906 15025 18653 18443 19471 18840 x x x x x x
Hamilton Argon-41 1186 1090 1198 717 1239 1081 x x x x x x
Xenon-133 12 5 7 - 114 23 x x x x x x
Xenon-135 19 8 12 - - - x x x x x x
Total Air
KERMA		 18089 15375 19186 20376 22246 22049 x x x x x x
Kingston ON Argon-41 x x x x x x x x x x x x
Xenon-133 x x x x x x x x x x x x
Xenon-135 x x x x x x x x x x x x
Total Air
KERMA		 x x x x x x x x x x x x
St. Catharines Argon-41 - x - - - - x x x x x x
Xenon-133 - x - - - - x x x x x x
Xenon-135 - x - - - - x x x x x x
Total Air
KERMA		 11161 x 8053 7829 8262 8085 x x x x x x

- (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.

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

Blank cell: The dose data for this month has not been collected yet.
Darlington perimeter system - 2025
Dose Data (nGy/month)
Station Nuclide Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Blue Circle Cement Argon-41 - - - - - - x x x x x x
Xenon-133 - - - - - - x x x x x x
Xenon-135 - - - - - - x x x x x x
Total Air
KERMA		 18521 14000 17837 18366 19832 19558 x x x x x x
Bowmanville Argon-41 - - - - - - x x x x x x
Xenon-133 - - - - - - x x x x x x
Xenon-135 - - - - - - x x x x x x
Total Air
KERMA		 19763 14970 19187 19738 21242 20962 x x x x x x
Energy Drive East Argon-41 - - - - - - x x x x x x
Xenon-133 - - - - - - x x x x x x
Xenon-135 - - - - - - x x x x x x
Total Air
KERMA		 21423 14201 18355 21508 22856 22526 x x x x x x
Crago Road Argon-41 - - - - - - x x x x x x
Xenon-133 - - - - - - x x x x x x
Xenon-135 - - - - - - x x x x x x
Total Air
KERMA		 21048 14927 19210 21170 22437 21983 x x x x x x
Osborne Road Argon-41 - - - - - - x x x x x x
Xenon-133 - - - - - - x x x x x x
Xenon-135 - - - - - - x x x x x x
Total Air
KERMA		 21300 15564 20160 21162 22411 21963 x x x x x x
Courtice Treatment Plant Argon-41 - - - x - - x x x x x x
Xenon-133 - - - x - - x x x x x x
Xenon-135 - - - x - - x x x x x x
Total Air
KERMA		 21113 17529 20496 x 22107 21819 x x x x x x
Holt Road Argon-41 - - - - - x x x x x x x
Xenon-133 - - - - - x x x x x x x
Xenon-135 - - - - - x x x x x x x
Total Air
KERMA		 21278 15375 19607 21248 22839 x x x x x x x

- (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.

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

Blank cell: The dose data for this month has not been collected yet.
Pickering perimeter system - 2025
Dose Data (nGy/month)
Station Nuclide Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Montgomery Road Argon-41 - - - - - - x x x x x x
Xenon-133 - - - - - - x x x x x x
Xenon-135 - - - - - - x x x x x x
Total Air
KERMA		 19334 14414 17515 19075 20503 20327 x x x x x x
Kinsmen Park Argon-41 - - - - - - x x x x x x
Xenon-133 - - - - - - x x x x x x
Xenon-135 - - - - - - x x x x x x
Total Air
KERMA		 19651 14407 17975 19282 20926 20569 x x x x x x
Liverpool Road Argon-41 - - - - - - x x x x x x
Xenon-133 - - - - - - x x x x x x
Xenon-135 - - - - - - x x x x x x
Total Air
KERMA		 17905 13364 16423 17519 18461 18313 x x x x x x
East Boundary Argon-41 - - - - - - x x x x x x
Xenon-133 - - - - - - x x x x x x
Xenon-135 - - - - - - x x x x x x
Total Air
KERMA		 25153 18079 22993 24843 26250 26083 x x x x x x
Central Maintenance Argon-41 - - - - - - x x x x x x
Xenon-133 - - - - - - x x x x x x
Xenon-135 - - - - - - x x x x x x
Total Air
KERMA		 15947 12150 15500 15569 16514 16155 x x x x x x
Beachpoint Promenade Argon-41 - - - - - - x x x x x x
Xenon-133 - - - - - - x x x x x x
Xenon-135 - - - - - - x x x x x x
Total Air
KERMA		 18700 14065 17472 18397 19475 19104 x x x x x x
CMS Storage Yard Argon-41 - - - - - - x x x x x x
Xenon-133 - - - - - - x x x x x x
Xenon-135 - - - - - - x x x x x x
Total Air
KERMA		 15282 13404 14264 14199 15196 15087 x x x x x x
Alex Robertson Road Argon-41 - - - - - - x x x x x x
Xenon-133 - - - - - - x x x x x x
Xenon-135 - - - - - - x x x x x x
Total Air
KERMA		 24106 16866 20824 23729 25035 24726 x x x x x x

- (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.

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

Blank cell: The dose data for this month has not been collected yet.
Ottawa Valley system - 2025
Dose Data (nGy/month)
Station Nuclide Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Chapeau Argon-41 - - - x x x x x x x x x
Xenon-133 - - - x x x x x x x x x
Xenon-135 - - - x x x x x x x x x
Total Air
KERMA		 16941 12013 13091 x x x x x x x x x
Chalk River Argon-41 - - - - - - x x x x x x
Xenon-133 - - - - - - x x x x x x
Xenon-135 - - - - - - x x x x x x
Total Air
KERMA		 29507 24461 29592 31953 34192 33552 x x x x x x
Deep River Argon-41 - - - - - - x x x x x x
Xenon-133 - - - - - - x x x x x x
Xenon-135 - - - - - - x x x x x x
Total Air
KERMA		 29278 23486 25876 29274 31731 31520 x x x x x x
Ottawa Argon-41 - - x - x x x x x x x x
Xenon-133 - - x - x x x x x x x x
Xenon-135 - - x - x x x x x x x x
Total Air
KERMA		 14224 10338 x 13903 x x x x x x x x
Petawawa Argon-41 - - - x x x x x x x x x
Xenon-133 - - - x x x x x x x x x
Xenon-135 - - - x x x x x x x x x
Total Air
KERMA		 23916 17895 22814 x x x x x x x x x
Sheenboro Argon-41 - - - - - - x x x x x x
Xenon-133 - - - - - - x x x x x x
Xenon-135 - - - - - - x x x x x x
Total Air
KERMA		 20773 15602 20076 24054 25493 25266 x x x x x x
Westmeath Argon-41 x x x x x x x x x x x x
Xenon-133 x x x x x x x x x x x x
Xenon-135 x x x x x x x x x x x x
Total Air
KERMA		 x x x x x x x x x x x x

- (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.

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

Blank cell: The dose data for this month has not been collected yet.
Regional system - 2025
Dose Data (nGy/month)
Station Nuclide Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Amherstburg Argon-41 - - - - - - x x x x x x
Xenon-133 - - - - - - x x x x x x
Xenon-135 - - - - - - x x x x x x
Total Air
KERMA		 18448 15962 18612 17640 18201 18218 x x x x x x
Vancouver Argon-41 x x x x x x x x x x x x
Xenon-133 x x x x x x x x x x x x
Xenon-135 x x x x x x x x x x x x
Total Air
KERMA		 x x x x x x x x x x x x
Yellowknife Argon-41 - - - - - - x x x x x x
Xenon-133 - - - - - - x x x x x x
Xenon-135 - - - - - - x x x x x x
Total Air
KERMA		 19846 16867 17674 19579 29207 30782 x x x x x x
Regina Argon-41 - - - - - - x x x x x x
Xenon-133 - - - - - - x x x x x x
Xenon-135 - - - - - - x x x x x x
Total Air
KERMA		 16115 15120 16725 17418 18376 18079 x x x x x x
Calgary Argon-41 - - - - - - x x x x x x
Xenon-133 - - - - - - x x x x x x
Xenon-135 - - - - - - x x x x x x
Total Air
KERMA		 13342 11813 12818 12210 12900 12664 x x x x x x
Winnipeg Argon-41 - - - - - - x x x x x x
Xenon-133 - - - - - - x x x x x x
Xenon-135 - - - - - - x x x x x x
Total Air
KERMA		 14071 12644 13889 13868 14606 14503 x x x x x x
Thunder Bay Argon-41 - - - - - - x x x x x x
Xenon-133 - - - - - - x x x x x x
Xenon-135 - - - - - - x x x x x x
Total Air
KERMA		 16053 14102 15627 15405 15856 15932 x x x x x x
Montréal Argon-41 - - - - - - x x x x x x
Xenon-133 - - - - - - x x x x x x
Xenon-135 - - - - - - x x x x x x
Total Air
KERMA		 12746 10506 12836 12788 13205 12786 x x x x x x
Charlottetown Argon-41 - - - - - - x x x x x x
Xenon-133 - - - - - - x x x x x x
Xenon-135 - - - - - - x x x x x x
Total Air
KERMA		 15285 12603 15292 15119 15612 15347 x x x x x x
St. John's Argon-41 - - - - - - x x x x x x
Xenon-133 - - - - - - x x x x x x
Xenon-135 - - - - - - x x x x x x
Total Air
KERMA		 23772 20083 23465 22883 23650 23072 x x x x x x
Whitehorse Argon-41 - - - - - - x x x x x x
Xenon-133 - - - - - - x x x x x x
Xenon-135 - - - - - - x x x x x x
Total Air
KERMA		 20659 19062 20006 24925 27901 27570 x x x x x x
Iqaluit Argon-41 - - - - - - x x x x x x
Xenon-133 - - - - - - x x x x x x
Xenon-135 - - - - - - x x x x x x
Total Air
KERMA		 18778 14631 14454 12880 12824 25984 x x x x x x
Resolute Argon-41 - - - - - - x x x x x x
Xenon-133 - - - - - - x x x x x x
Xenon-135 - - - - - - x x x x x x
Total Air
KERMA		 7805 6997 7211 6954 7275 8771 x x x x x x
Haida Gwaii Argon-41 - - - - - - x x x x x x
Xenon-133 - - - - - - x x x x x x
Xenon-135 - - - - - - x x x x x x
Total Air
KERMA		 15035 14100 15053 14471 14716 14822 x x x x x x
Saskatoon Argon-41 - - - - - - x x x x x x
Xenon-133 - - - - - - x x x x x x
Xenon-135 - - - - - - x x x x x x
Total Air
KERMA		 20973 19341 22923 22101 23210 22789 x x x x x x
Kelowna Argon-41 - - - - - - x x x x x x
Xenon-133 - - - - - - x x x x x x
Xenon-135 - - - - - - x x x x x x
Total Air
KERMA		 33679 30160 32587 31257 32916 32099 x x x x x x
Fredericton Argon-41 - - - - - - x x x x x x
Xenon-133 - - - - - - x x x x x x
Xenon-135 - - - - - - x x x x x x
Total Air
KERMA		 36411 30428 36030 36090 37147 36106 x x x x x x
Edmonton Argon-41 - - - - - - x x x x x x
Xenon-133 - - - - - - x x x x x x
Xenon-135 - - - - - - x x x x x x
Total Air
KERMA		 17417 15834 17834 17428 18714 18213 x x x x x x
Edmundston Argon-41 - - - - - - x x x x x x
Xenon-133 - - - - - - x x x x x x
Xenon-135 - - - - - - x x x x x x
Total Air
KERMA		 14366 11570 13491 14841 16031 15766 x x x x x x
Sherbrooke Argon-41 - - - - - - x x x x x x
Xenon-133 - - - - - - x x x x x x
Xenon-135 - - - - - - x x x x x x
Total Air
KERMA		 15826 10166 13908 18315 19107 19024 x x x x x x
Cambridge Bay Argon-41 - - - - - - x x x x x x
Xenon-133 - - - - - - x x x x x x
Xenon-135 - - - - - - x x x x x x
Total Air
KERMA		 21790 17956 18662 17262 18907 24867 x x x x x x
London Argon-41 - - - - - - x x x x x x
Xenon-133 - - - - - - x x x x x x
Xenon-135 - - - - - - x x x x x x
Total Air
KERMA		 15280 11088 16275 16413 16778 17014 x x x x x x
Sudbury Argon-41 - - - - - - x x x x x x
Xenon-133 - - - - - - x x x x x x
Xenon-135 - - - - - - x x x x x x
Total Air
KERMA		 34016 29982 33699 33231 35169 34552 x x x x x x

- (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.

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

Blank cell: The dose data for this month has not been collected yet.
Point Lepreau system - 2025
Dose Data (nGy/month)
Station Nuclide Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Lighthouse Argon-41 - - - - - - x x x x x x
Xenon-133 - - - - - - x x x x x x
Xenon-135 - - - - - - x x x x x x
Total Air
KERMA		 24060 17061 24000 24218 24962 24353 x x x x x x
Digby Argon-41 - - - - - - x x x x x x
Xenon-133 - - - - - - x x x x x x
Xenon-135 - - - - - - x x x x x x
Total Air
KERMA		 29220 25538 29575 28687 29600 28820 x x x x x x
Dipper Harbour Argon-41 x x x x x x x x x x x x
Xenon-133 x x x x x x x x x x x x
Xenon-135 x x x x x x x x x x x x
Total Air
KERMA		 x x x x x x x x x x x x
Emergency Centre Argon-41 x x x x x x x x x x x x
Xenon-133 x x x x x x x x x x x x
Xenon-135 x x x x x x x x x x x x
Total Air
KERMA		 x x x x x x x x x x x x
Saint John Argon-41 - - - - - - x x x x x x
Xenon-133 - - - - - - x x x x x x
Xenon-135 - - - - - - x x x x x x
Total Air
KERMA		 23758 20276 23953 23171 23831 23126 x x x x x x
Welch Cove Argon-41 - - - - - - x x x x x x
Xenon-133 - - - - - - x x x x x x
Xenon-135 - - - - - - x x x x x x
Total Air
KERMA		 18706 13477 17320 18255 19087 18903 x x x x x x
Kingston NS Argon-41 - - - - - - x x x x x x
Xenon-133 - - - - - - x x x x x x
Xenon-135 - - - - - - x x x x x x
Total Air
KERMA		 18598 14410 19026 18765 19339 18873 x x x x x x
Off-Site Emergency Operations Centre Argon-41 - - - - - - x x x x x x
Xenon-133 - - - - - - x x x x x x
Xenon-135 - - - - - - x x x x x x
Total Air
KERMA		 34547 21641 34366 35916 37145 36085 x x x x x x

- (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.

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

Blank cell: The dose data for this month has not been collected yet.
Vancouver Island system - 2025
Dose Data (nGy/month)
Station Nuclide Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Saanich Argon-41 - - - - - - x x x x x x
Xenon-133 - - - - - - x x x x x x
Xenon-135 - - - - - - x x x x x x
Total Air
KERMA		 13618 12348 13365 12924 13685 13356 x x x x x x
Metchosin Argon-41 - - - - - - x x x x x x
Xenon-133 - - - - - - x x x x x x
Xenon-135 - - - - - - x x x x x x
Total Air
KERMA		 20887 19041 20827 20115 21023 20565 x x x x x x
Victoria Argon-41 - - - - - - x x x x x x
Xenon-133 - - - - - - x x x x x x
Xenon-135 - - - - - - x x x x x x
Total Air
KERMA		 8570 7899 8419 7982 8258 8049 x x x x x x
Nanaimo Argon-41 - - - - - - x x x x x x
Xenon-133 - - - - - - x x x x x x
Xenon-135 - - - - - - x x x x x x
Total Air
KERMA		 13946 12453 13752 13177 13701 13283 x x x x x x
Sidney Argon-41 - - - - - - x x x x x x
Xenon-133 - - - - - - x x x x x x
Xenon-135 - - - - - - x x x x x x
Total Air
KERMA		 11384 10283 11017 10719 11649 11686 x x x x x x

- (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.

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

Blank cell: The dose data for this month has not been collected yet.
Halifax system - 2025
Dose Data (nGy/month)
Station Nuclide Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
West Street Argon-41 - - - - - - x x x x x x
Xenon-133 - - - - - - x x x x x x
Xenon-135 - - - - - - x x x x x x
Total Air
KERMA		 25863 21696 25747 25103 25917 25405 x x x x x x
Dartmouth Argon-41 - - - - - - x x x x x x
Xenon-133 - - - - - - x x x x x x
Xenon-135 - - - - - - x x x x x x
Total Air
KERMA		 21476 16796 21242 20780 21406 21068 x x x x x x
Cole Harbour Road Argon-41 - - - - - - x x x x x x
Xenon-133 - - - - - - x x x x x x
Xenon-135 - - - - - - x x x x x x
Total Air
KERMA		 20030 15433 19869 19404 20010 19736 x x x x x x

- (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.

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

Blank cell: The dose data for this month has not been collected yet.

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