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: October 30th, 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
	Xenon-133	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-135	-	-	-	-	-	-	-	-	-	x	x	x
	Total Air KERMA	19275	16276	19823	21268	21974	21479	23436	22652	22162	x	x	x
Port	Argon-41	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-133	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-135	-	-	-	-	-	-	-	-	-	x	x	x
	Total Air KERMA	8750	6962	7936	8482	8784	9032	9612	9958	10763	x	x	x
Victoriaville	Argon-41	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-133	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-135	-	-	-	-	-	-	-	-	-	x	x	x
	Total Air KERMA	16929	13033	18073	20195	21220	20685	21508	21771	21396	x	x	x
Trois Rivières	Argon-41	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-133	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-135	-	-	-	-	-	-	-	-	-	x	x	x
	Total Air KERMA	12281	9297	10985	13073	14126	13961	14685	15022	14630	x	x	x
Québec City	Argon-41	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-133	-	-	-	-	-	-		-	-	x	x	x
	Xenon-135	-	-	-	-	-	-	-	-	-	x	x	x
	Total Air KERMA	9374	7768	9178	9639	10160	10221	10688	10523	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
	Xenon-133	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-135	-	-	-	-	-	-	-	-	-	x	x	x
	Total Air KERMA	11400	6197	11467	13357	13957	14561	15125	15348	14669	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
	Xenon-133	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-135	-	-	-	-	-	-	-	-	-	x	x	x
	Total Air KERMA	10992	15163	10938	15329	16170	15917	16662	17021	16574	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
	Xenon-133	-	-	-	-	-	-	x	-	-	x	x	x
	Xenon-135	-	-	-	-	-	-	x	-	-	x	x	x
	Total Air KERMA	10938	6964	10794	12154	12804	12649	x	13662	13052	x	x	x
Infocentre	Argon-41	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-133	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-135	-	-	-	-	-	-	-	-	-	x	x	x
	Total Air KERMA	19698	12480	19987	21291	22219	22237	23760	24118	23285	x	x	x
Tiverton	Argon-41	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-133	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-135	-	-	-	-	-	-	-	-	-	x	x	x
	Total Air KERMA	14479	8511	14648	17454	18500	18133	18936	19314	18567	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
	Xenon-133	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-135	-	-	-	-	-	-	-	-	-	x	x	x
	Total Air KERMA	12131	10184	11891	11479	12357	11909	12600	12698	12896	x	x	x
Bowmanville	Argon-41	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-133	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-135	-	-	-	-	-	-	-	-	-	x	x	x
	Total Air KERMA	30068	21215	28444	29870	31400	30678	32672	32633	31867	x	x	x
Mississauga	Argon-41	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-133	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-135	-	-	-	-	-	-	-	-	-	x	x	x
	Total Air KERMA	12296	9950	12093	12065	12766	12560	13287	13424	13573	x	x	x
Toronto	Argon-41	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-133	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-135	-	-	-	-	-	-	-	-	-	x	x	x
	Total Air KERMA	12244	9782	11886	11743	12672	12178	12913	13063	13205	x	x	x
Pickering	Argon-41	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-133	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-135	-	-	-	-	-	-	-	-	-	x	x	x
	Total Air KERMA	15742	12326	15027	15254	16288	15983	17075	17272	17070	x	x	x
Oshawa	Argon-41	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-133	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-135	-	-	-	-	-	-	-	-	-	x	x	x
	Total Air KERMA	13097	10454	12713	12699	13578	13207	14167	14299	14115	x	x	x
Markham	Argon-41	x	x	-	-	-	-	-	8	-	x	x	x
	Xenon-133	x	x	-	-	-	-	-	-	-	x	x	x
	Xenon-135	x	x	-	-	-	-	-	-	-	x	x	x
	Total Air KERMA	x	x	14741	14887	15851	15421	16538	16610	16753	x	x	x
Ajax	Argon-41	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-133	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-135	-	-	-	-	-	-	-	-	-	x	x	x
	Total Air KERMA	21653	16496	20152	20512	21706	21728	24179	24844	24143	x	x	x
Port Hope	Argon-41	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-133	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-135	-	-	-	-	-	-	-	-	-	x	x	x
	Total Air KERMA	18906	15025	18653	18443	19471	18840	20140	20431	19837	x	x	x
Hamilton	Argon-41	1186	1090	1198	717	1239	1081	1579	954	1244	x	x	x
	Xenon-133	12	5	7	-	114	23	22	12	7	x	x	x
	Xenon-135	19	8	12	-	-	-	-	-	-	x	x	x
	Total Air KERMA	18089	15375	19186	20376	22246	22049	24695	24993	22530	x	x	x
Kingston ON	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	19283	29284	28435	x	x	x
St. Catharines	Argon-41	-	x	-	-	-	-	-	-	-	x	x	x
	Xenon-133	-	x	-	-	-	-	-	-	-	x	x	x
	Xenon-135	-	x	-	-	-	-	-	-	-	x	x	x
	Total Air KERMA	11161	x	8053	7829	8262	8085	8720	8768	9002	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
	Xenon-133	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-135	-	-	-	-	-	-	-	-	-	x	x	x
	Total Air KERMA	18521	14000	17837	18366	19832	19558	20991	21309	20849	x	x	x
Bowmanville	Argon-41	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-133	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-135	-	-	-	-	-	-	-	-	-	x	x	x
	Total Air KERMA	19763	14970	19187	19738	21242	20962	22683	22935	22262	x	x	x
Energy Drive East	Argon-41	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-133	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-135	-	-	-	-	-	-	-	-	-	x	x	x
	Total Air KERMA	21423	14201	18355	21508	22856	22526	24436	25155	24638	x	x	x
Crago Road	Argon-41	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-133	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-135	-	-	-	-	-	-	-	-	-	x	x	x
	Total Air KERMA	21048	14927	19210	21170	22437	21983	24143	24508	23770	x	x	x
Osborne Road	Argon-41	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-133	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-135	-	-	-	-	-	-	-	-	-	x	x	x
	Total Air KERMA	21300	15564	20160	21162	22411	21963	23204	23575	23266	x	x	x
Courtice Treatment Plant	Argon-41	-	-	-	x	-	-	-	-	-	x	x	x
	Xenon-133	-	-	-	x	-	-	-	-	-	x	x	x
	Xenon-135	-	-	-	x	-	-	-	-	-	x	x	x
	Total Air KERMA	21113	17529	20496	x	22107	21819	23621	23878	23215	x	x	x
Holt Road	Argon-41	-	-	-	-	-	x	x	-	-	x	x	x
	Xenon-133	-	-	-	-	-	x	x	-	-	x	x	x
	Xenon-135	-	-	-	-	-	x	x	-	-	x	x	x
	Total Air KERMA	21278	15375	19607	21248	22839	x	x	19989	20616	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
	Xenon-133	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-135	-	-	-	-	-	-	-	-	-	x	x	x
	Total Air KERMA	19334	14414	17515	19075	20503	20327	22312	22902	22327	x	x	x
Kinsmen Park	Argon-41	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-133	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-135	-	-	-	-	-	-	-	-	-	x	x	x
	Total Air KERMA	19651	14407	17975	19282	20926	20569	22426	22951	22377	x	x	x
Liverpool Road	Argon-41	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-133	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-135	-	-	-	-	-	-	-	-	-	x	x	x
	Total Air KERMA	17905	13364	16423	17519	18461	18313	19681	20097	19666	x	x	x
East Boundary	Argon-41	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-133	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-135	-	-	-	-	-	-	-	-	-	x	x	x
	Total Air KERMA	25153	18079	22993	24843	26250	26083	28038	28593	27633	x	x	x
Central Maintenance	Argon-41	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-133	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-135	-	-	-	-	-	-	-	-	-	x	x	x
	Total Air KERMA	15947	12150	15500	15569	16514	16155	17262	17628	17297	x	x	x
Beachpoint Promenade	Argon-41	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-133	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-135	-	-	-	-	-	-	-	-	-	x	x	x
	Total Air KERMA	18700	14065	17472	18397	19475	19104	20150	20381	19954	x	x	x
CMS Storage Yard	Argon-41	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-133	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-135	-	-	-	-	-	-	-	-	-	x	x	x
	Total Air KERMA	15282	13404	14264	14199	15196	15087	16562	16903	16170	x	x	x
Alex Robertson Road	Argon-41	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-133	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-135	-	-	-	-	-	-	-	-	-	x	x	x
	Total Air KERMA	24106	16866	20824	23729	25035	24726	27347	28664	27836	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
	Xenon-133	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-135	-	-	-	-	-	-	-	-	-	x	x	x
	Total Air KERMA	29507	24461	29592	31953	34192	33552	34975	35118	34185	x	x	x
Deep River	Argon-41	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-133	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-135	-	-	-	-	-	-	-	-	-	x	x	x
	Total Air KERMA	29278	23486	25876	29274	31731	31520	32692	33556	32628	x	x	x
Ottawa	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	14224	10338	x	13903	x	x	15612	15843	15688	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
	Xenon-133	-	-	-	-	-	-	-	x	-	x	x	x
	Xenon-135	-	-	-	-	-	-	-	x	-	x	x	x
	Total Air KERMA	20773	15602	20076	24054	25493	25266	26494	x	26354	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
	Xenon-133	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-135	-	-	-	-	-	-	-	-	-	x	x	x
	Total Air KERMA	18448	15962	18612	17640	18201	18218	19947	19862	20299	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
	Xenon-133	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-135	-	-	-	-	-	-	-	-	-	x	x	x
	Total Air KERMA	19846	16867	17674	19579	29207	30782	31927	32584	31515	x	x	x
Regina	Argon-41	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-133	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-135	-	-	-	-	-	-	-	-	-	x	x	x
	Total Air KERMA	16115	15120	16725	17418	18376	18079	19387	19594	19395	x	x	x
Calgary	Argon-41	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-133	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-135	-	-	-	-	-	-	-	-	-	x	x	x
	Total Air KERMA	13342	11813	12818	12210	12900	12664	13775	13351	13342	x	x	x
Winnipeg	Argon-41	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-133	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-135	-	-	-	-	-	-	-	-	-	x	x	x
	Total Air KERMA	14071	12644	13889	13868	14606	14503	15485	15699	15189	x	x	x
Thunder Bay	Argon-41	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-133	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-135	-	-	-	-	-	-	-	-	-	x	x	x
	Total Air KERMA	16053	14102	15627	15405	15856	15932	16728	16523	16313	x	x	x
Montréal	Argon-41	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-133	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-135	-	-	-	-	-	-	-	-	-	x	x	x
	Total Air KERMA	12746	10506	12836	12788	13205	12786	13483	13582	13383	x	x	x
Charlottetown	Argon-41	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-133	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-135	-	-	-	-	-	-	-	-	-	x	x	x
	Total Air KERMA	15285	12603	15292	15119	15612	15347	16266	16334	16010	x	x	x
St. John's	Argon-41	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-133	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-135	-	-	-	-	-	-	-	-	-	x	x	x
	Total Air KERMA	23772	20083	23465	22883	23650	23072	24063	24087	23275	x	x	x
Whitehorse	Argon-41	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-133	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-135	-	-	-	-	-	-	-	-	-	x	x	x
	Total Air KERMA	20659	19062	20006	24925	27901	27570	29092	29089	28170	x	x	x
Iqaluit	Argon-41	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-133	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-135	-	-	-	-	-	-	-	-	-	x	x	x
	Total Air KERMA	18778	14631	14454	12880	12824	25984	30782	31891	30090	x	x	x
Resolute	Argon-41	-	-	-	-	-	-	-	-	x	x	x	x
	Xenon-133	-	-	-	-	-	-	-	-	x	x	x	x
	Xenon-135	-	-	-	-	-	-	-	-	x	x	x	x
	Total Air KERMA	7805	6997	7211	6954	7275	8771	13236	13662	x	x	x	x
Haida Gwaii	Argon-41	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-133	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-135	-	-	-	-	-	-	-	-	-	x	x	x
	Total Air KERMA	15035	14100	15053	14471	14716	14822	15730	15419	15457	x	x	x
Saskatoon	Argon-41	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-133	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-135	-	-	-	-	-	-	-	-	-	x	x	x
	Total Air KERMA	20973	19341	22923	22101	23210	22789	23827	24189	23820	x	x	x
Kelowna	Argon-41	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-133	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-135	-	-	-	-	-	-	-	-	-	x	x	x
	Total Air KERMA	33679	30160	32587	31257	32916	32099	33476	33972	33562	x	x	x
Fredericton	Argon-41	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-133	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-135	-	-	-	-	-	-	-	-	-	x	x	x
	Total Air KERMA	36411	30428	36030	36090	37147	36106	37061	36958	36128	x	x	x
Edmonton	Argon-41	-	-	-	-	-	-	x	x	-	x	x	x
	Xenon-133	-	-	-	-	-	-	x	x	-	x	x	x
	Xenon-135	-	-	-	-	-	-	x	x	-	x	x	x
	Total Air KERMA	17417	15834	17834	17428	18714	18213	x	x	19400	x	x	x
Edmundston	Argon-41	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-133	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-135	-	-	-	-	-	-	-	-	-	x	x	x
	Total Air KERMA	14366	11570	13491	14841	16031	15766	16494	16899	16512	x	x	x
Sherbrooke	Argon-41	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-133	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-135	-	-	-	-	-	-	-	-	-	x	x	x
	Total Air KERMA	15826	10166	13908	18315	19107	19024	19984	22792	22300	x	x	x
Cambridge Bay	Argon-41	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-133	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-135	-	-	-	-	-	-	-	-	-	x	x	x
	Total Air KERMA	21790	17956	18662	17262	18907	24867	26808	26810	26356	x	x	x
London	Argon-41	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-133	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-135	-	-	-	-	-	-	-	-	-	x	x	x
	Total Air KERMA	15280	11088	16275	16413	16778	17014	18399	18899	18710	x	x	x
Sudbury	Argon-41	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-133	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-135	-	-	-	-	-	-	-	-	-	x	x	x
	Total Air KERMA	34016	29982	33699	33231	35169	34552	35758	35984	34777	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
	Xenon-133	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-135	-	-	-	-	-	-	-	-	-	x	x	x
	Total Air KERMA	29220	25538	29575	28687	29600	28820	29966	30191	29423	x	x	x
Dipper Harbour	Argon-41	x	x	x	x	x	x	x	x	-	x	x	x
	Xenon-133	x	x	x	x	x	x	x	x	-	x	x	x
	Xenon-135	x	x	x	x	x	x	x	x	-	x	x	x
	Total Air KERMA	x	x	x	x	x	x	x	x	31384	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
	Xenon-133	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-135	-	-	-	-	-	-	-	-	-	x	x	x
	Total Air KERMA	23758	20276	23953	23171	23831	23126	23941	24005	23489	x	x	x
Welch Cove	Argon-41	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-133	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-135	-	-	-	-	-	-	-	-	-	x	x	x
	Total Air KERMA	18706	13477	17320	18255	19087	18903	20316	21986	21896	x	x	x
Kingston NS	Argon-41	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-133	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-135	-	-	-	-	-	-	-	-	-	x	x	x
	Total Air KERMA	18598	14410	19026	18765	19339	18873	19601	19962	19505	x	x	x
Off-Site Emergency Operations Centre	Argon-41	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-133	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-135	-	-	-	-	-	-	-	-	-	x	x	x
	Total Air KERMA	34547	21641	34366	35916	37145	36085	37686	38094	36896	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
	Xenon-133	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-135	-	-	-	-	-	-	-	-	-	x	x	x
	Total Air KERMA	13618	12348	13365	12924	13685	13356	13899	14099	13767	x	x	x
Metchosin	Argon-41	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-133	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-135	-	-	-	-	-	-	-	-	-	x	x	x
	Total Air KERMA	20887	19041	20827	20115	21023	20565	21380	21562	21003	x	x	x
Victoria	Argon-41	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-133	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-135	-	-	-	-	-	-	-	-	-	x	x	x
	Total Air KERMA	8570	7899	8419	7982	8258	8049	8283	8448	8253	x	x	x
Nanaimo	Argon-41	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-133	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-135	-	-	-	-	-	-	-	-	-	x	x	x
	Total Air KERMA	13946	12453	13752	13177	13701	13283	13799	13899	16604	x	x	x
Sidney	Argon-41	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-133	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-135	-	-	-	-	-	-	-	-	-	x	x	x
	Total Air KERMA	11384	10283	11017	10719	11649	11686	12386	12429	12208	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
	Xenon-133	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-135	-	-	-	-	-	-	-	-	-	x	x	x
	Total Air KERMA	25863	21696	25747	25103	25917	25405	26342	26274	25415	x	x	x
Dartmouth	Argon-41	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-133	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-135	-	-	-	-	-	-	-	-	-	x	x	x
	Total Air KERMA	21476	16796	21242	20780	21406	21068	22295	22564	21827	x	x	x
Cole Harbour Road	Argon-41	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-133	-	-	-	-	-	-	-	-	-	x	x	x
	Xenon-135	-	-	-	-	-	-	-	-	-	x	x	x
	Total Air KERMA	20030	15433	19869	19404	20010	19736	20868	21290	20563	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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2025-11-12

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2025 Dose Data from the Fixed Point Surveillance Network

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