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: February 1, 2026)

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
Xenon-133 - - - - - - - - - - x x
Xenon-135 - - - - - - - - - - x x
Total Air
KERMA
19275 16276 19823 21268 21974 21479 23436 22652 22162 22700 x x
Port Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air
KERMA
8750 6962 7936 8482 8784 9032 9612 9958 10763 10234 9894 9281
Victoriaville Argon-41 - - - - - - - - - - x x
Xenon-133 - - - - - - - - - - x x
Xenon-135 - - - - - - - - - - x x
Total Air
KERMA
16929 13033 18073 20195 21220 20685 21508 21771 21396 21820 x x
Trois Rivières Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air
KERMA
12281 9297 10985 13073 14126 13961 14685 15022 14630 15009 13503 12076
Québec City Argon-41 - - - - - - - - x - - -
Xenon-133 - - - - - - - - x - - -
Xenon-135 - - - - - - - - x - - -
Total Air
KERMA
9374 7768 9178 9639 10160 10221 10688 10523 x 10594 10468 9896

- (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 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air
KERMA
11400 6197 11467 13357 13957 14561 15125 15348 14669 15376 14674 12525
Scott Point 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
x x x x x x x x x 11233 10815 9838
Kincardine Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air
KERMA
10992 15163 10938 15329 16170 15917 16662 17021 16574 17516 16654 15436
Inverhuron Argon-41 x x x x x x x x x x - -
Xenon-133 x x x x x x x x x x - -
Xenon-135 x x x x x x x x x x - -
Total Air
KERMA
x x x x x x x x x x 10829 9737
Port Elgin Argon-41 - - - - - - x - - - - -
Xenon-133 - - - - - - x - - - - -
Xenon-135 - - - - - - x - - - - -
Total Air
KERMA
10938 6964 10794 12154 12804 12649 x 13662 13052 13846 13662 11827
Infocentre Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air
KERMA
19698 12480 19987 21291 22219 22237 23760 24118 23285 24582 23106 20222
Tiverton Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -

Total Air
KERMA

14479 8511 14648 17454 18500 18133 18936 19314 18567 19591 18732 15836
Shore Road Argon-41 x x x x x x x x x x - -
Xenon-133 x x x x x x x x x x - -
Xenon-135 x x x x x x x x x x - -

Total Air
KERMA

x x x x x x x x x x 11195 9971

- (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 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air
KERMA
12131 10184 11891 11479 12357 11909 12600 12698 12896 12933 12627 12685
Bowmanville Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air
KERMA
30068 21215 28444 29870 31400 30678 32672 32633 31867 32295 31088 30041
Mississauga Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air
KERMA
12296 9950 12093 12065 12766 12560 13287 13424 13573 13665 12911 13005
Toronto Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air
KERMA
12244 9782 11886 11743 12672 12178 12913 13063 13205 13315 12791 12868
Pickering Argon-41 - - - - - - - - - - x -
Xenon-133 - - - - - - - - - - x -
Xenon-135 - - - - - - - - - - x -
Total Air
KERMA
15742 12326 15027 15254 16288 15983 17075 17272 17070 17067 x 16028
Oshawa Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air
KERMA
13097 10454 12713 12699 13578 13207 14167 14299 14115 14135 13607 13442
Markham Argon-41 x x - - - - - 8 - - - -
Xenon-133 x x - - - - - - - - - -
Xenon-135 x x - - - - - - - - - -
Total Air
KERMA
x x 14741 14887 15851 15421 16538 16610 16753 16800 15983 15726
Ajax Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air
KERMA
21653 16496 20152 20512 21706 21728 24179 24844 24143 23979 22319 22284
Port Hope Argon-41 - - - - - - - - - - x x
Xenon-133 - - - - - - - - - - x x
Xenon-135 - - - - - - - - - - x x
Total Air
KERMA
18906 15025 18653 18443 19471 18840 20140 20431 19837 21036 x x
Hamilton Argon-41 1186 1090 1198 717 1239 1081 1579 954 1244 780 954 647
Xenon-133 12 5 7 - 114 23 22 12 7 5 9 -
Xenon-135 19 8 12 - - - - - - - - -
Total Air
KERMA
18089 15375 19186 20376 22246 22049 24695 24993 22530 21361 21309 19297
Kingston ON 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
x x x x x x 19283 29284 28435 29013 26459 25056
St. Catharines Argon-41 - x - - - - - - - - - -
Xenon-133 - x - - - - - - - - - -
Xenon-135 - x - - - - - - - - - -
Total Air
KERMA
11161 x 8053 7829 8262 8085 8720 8768 9002 9240 8652 9023

- (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 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air
KERMA
18521 14000 17837 18366 19832 19558 20991 21309 20849 21230 20146 19650
Bowmanville Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air
KERMA
19763 14970 19187 19738 21242 20962 22683 22935 22262 22491 21276 20695
Energy Drive East Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air
KERMA
21423 14201 18355 21508 22856 22526 24436 25155 24638 24961 23767 22646
Crago Road Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air
KERMA
21048 14927 19210 21170 22437 21983 24143 24508 23770 23926 22642 21688
Osborne Road Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air
KERMA
21300 15564 20160 21162 22411 21963 23204 23575 23266 23623 22357 21696
Courtice Treatment Plant Argon-41 - - - x - - - - - - x -
Xenon-133 - - - x - - - - - - x -
Xenon-135 - - - x - - - - - - x -
Total Air
KERMA
21113 17529 20496 x 22107 21819 23621 23878 23215 23316 x 21672
Holt Road Argon-41 - - - - - x x - - - - -
Xenon-133 - - - - - x x - - - - -
Xenon-135 - - - - - x x - - - - -
Total Air
KERMA
21278 15375 19607 21248 22839 x x 19989 20616 20917 19303 17880

- (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 -
Xenon-133 - - - - - - - - - - x -
Xenon-135 - - - - - - - - - - x -
Total Air
KERMA
19334 14414 17515 19075 20503 20327 22312 22902 22327 21984 x 19995
Kinsmen Park Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air
KERMA
19651 14407 17975 19282 20926 20569 22426 22951 22377 22348 20777 20398
Liverpool Road Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air
KERMA
17905 13364 16423 17519 18461 18313 19681 20097 19666 20936 18646 18504
East Boundary Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air
KERMA
25153 18079 22993 24843 26250 26083 28038 28593 27633 27602 25799 26169
Central Maintenance Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air
KERMA
15947 12150 15500 15569 16514 16155 17262 17628 17297 17304 16461 16373
Beachpoint Promenade Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air
KERMA
18700 14065 17472 18397 19475 19104 20150 20381 19954 20344 19225 19254
CMS Storage Yard Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air
KERMA
15282 13404 14264 14199 15196 15087 16562 16903 16170 16205 15448 15605
Alex Robertson Road Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air
KERMA
24106 16866 20824 23729 25035 24726 27347 28664 27836 27581 25579 24640

- (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 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air
KERMA
29507 24461 29592 31953 34192 33552 34975 35118 34185 35628 33470 32025
Deep River Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air
KERMA
29278 23486 25876 29274 31731 31520 32692 33556 32628 33905 31989 30309
Ottawa Argon-41 - - x - x x - - - - - -
Xenon-133 - - x - x x - - - - - -
Xenon-135 - - x - x x - - - - - -
Total Air
KERMA
14224 10338 x 13903 x x 15612 15843 15688 16540 15933 15056
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
Xenon-133 - - - - - - - x - - x x
Xenon-135 - - - - - - - x - - x x
Total Air
KERMA
20773 15602 20076 24054 25493 25266 26494 x 26354 27031 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 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air
KERMA
18448 15962 18612 17640 18201 18218 19947 19862 20299 20635 19665 19736
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 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air
KERMA
19846 16867 17674 19579 29207 30782 31927 32584 31515 32409 28484 25720
Regina Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air
KERMA
16115 15120 16725 17418 18376 18079 19387 19594 19395 20040 19102 18694
Calgary Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air
KERMA
13342 11813 12818 12210 12900 12664 13775 13351 13342 13458 13873 13720
Winnipeg Argon-41 - - - - - - - - - - x x
Xenon-133 - - - - - - - - - - x x
Xenon-135 - - - - - - - - - - x x
Total Air
KERMA
14071 12644 13889 13868 14606 14503 15485 15699 15189 16979 x x
Thunder Bay Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air
KERMA
16053 14102 15627 15405 15856 15932 16728 16523 16313 17234 16235 16616
Montréal Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air
KERMA
12746 10506 12836 12788 13205 12786 13483 13582 13383 13864 13350 13113
Charlottetown Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air
KERMA
15285 12603 15292 15119 15612 15347 16266 16334 16010 16389 16093 15551
St. John's Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air
KERMA
23772 20083 23465 22883 23650 23072 24063 24087 23275 24240 23923 23246
Whitehorse Argon-41 - - - - - - - - - - x -
Xenon-133 - - - - - - - - - - x -
Xenon-135 - - - - - - - - - - x -
Total Air
KERMA
20659 19062 20006 24925 27901 27570 29092 29089 28170 29149 x 26463
Iqaluit Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air
KERMA
18778 14631 14454 12880 12824 25984 30782 31891 30090 30446 23908 20856
Resolute Argon-41 - - - - - - - - x - - x
Xenon-133 - - - - - - - - x - - x
Xenon-135 - - - - - - - - x - - x
Total Air
KERMA
7805 6997 7211 6954 7275 8771 13236 13662 x 11235 9348 x
Haida Gwaii Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air
KERMA
15035 14100 15053 14471 14716 14822 15730 15419 15457 15078 14635 14810
Saskatoon Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air
KERMA
20973 19341 22923 22101 23210 22789 23827 24189 23820 24978 24168 24090
Kelowna Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air
KERMA
33679 30160 32587 31257 32916 32099 33476 33972 33562 34085 33022 33248
Fredericton Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air
KERMA
36411 30428 36030 36090 37147 36106 37061 36958 36128 37380 36053 35408
Edmonton Argon-41 - - - - - - x x - - - -
Xenon-133 - - - - - - x x - - - -
Xenon-135 - - - - - - x x - - - -
Total Air
KERMA
17417 15834 17834 17428 18714 18213 x x 19400 20020 20325 19759
Edmundston Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air
KERMA
14366 11570 13491 14841 16031 15766 16494 16899 16512 17155 15760 14987
Sherbrooke Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air
KERMA
15826 10166 13908 18315 19107 19024 19984 22792 22300 22249 19846 17379
Cambridge Bay Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air
KERMA
21790 17956 18662 17262 18907 24867 26808 26810 26356 26897 22977 22724
London Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air
KERMA
15280 11088 16275 16413 16778 17014 18399 18885 18710 18801 17701 15910
Sudbury Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air
KERMA
34016 29982 33699 33231 35169 34552 35758 35984 34777 36792 35284 34898

- (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 - - -
Xenon-133 - - - - - - x x x - - -
Xenon-135 - - - - - - x x x - - -
Total Air
KERMA
24060 17061 24000 24218 24962 24353 x x x 30668 29165 28777
Digby Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air
KERMA
29220 25538 29575 28687 29600 28820 29966 30191 29423 30470 29456 30114
Dipper Harbour 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 x x x x x x 31384 35014 32935 32036
Emergency Centre Argon-41 x x x x x x x x x - - x
Xenon-133 x x x x x x x x x - - x
Xenon-135 x x x x x x x x x - - x
Total Air
KERMA
x x x x x x x x x 45275 43356 x
Saint John Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air
KERMA
23758 20276 23953 23171 23831 23126 23941 24005 23489 24232 23789 24027
Welch Cove Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air
KERMA
18706 13477 17320 18255 19087 18903 20316 21986 21896 22035 20912 20262
Kingston NS Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air
KERMA
18598 14410 19026 18765 19339 18873 19601 19962 19505 20169 19683 19304
Off-Site Emergency Operations Centre Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air
KERMA
34547 21641 34366 35916 37145 36085 37686 38094 36896 38027 36713 35406

- (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 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air
KERMA
13618 12348 13365 12924 13685 13356 13899 14099 13767 14139 13515 13789
Metchosin Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air
KERMA
20887 19041 20827 20115 21023 20565 21380 21562 21003 21647 20674 21307
Victoria Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air
KERMA
8570 7899 8419 7982 8258 8049 8283 8448 8253 8702 8529 8826
Nanaimo Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air
KERMA
13946 12453 13752 13177 13701 13283 13799 13899 13604 14214 13622 14078
Sidney Argon-41 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air
KERMA
11384 10283 11017 10719 11649 11686 12386 12429 12208 12062 11323 11462

- (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 - - - - - - - - - - - -
Xenon-133 - - - - - - - - - - - -
Xenon-135 - - - - - - - - - - - -
Total Air
KERMA
25863 21696 25747 25103 25917 25405 26342 26274 25415 26159 26106 26594
Dartmouth Argon-41 - - - - - - - - - - x -
Xenon-133 - - - - - - - - - - x -
Xenon-135 - - - - - - - - - - x -
Total Air
KERMA
21476 16796 21242 20780 21406 21068 22295 22564 21827 22519 x 21885
Cole Harbour Road Argon-41 - - - - - - - - - - x -
Xenon-133 - - - - - - - - - - x -
Xenon-135 - - - - - - - - - - x -
Total Air
KERMA
20030 15433 19869 19404 20010 19736 20868 21290 20563 21442 x 20448

- (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.

Page details

2026-02-19