2024 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 6^th, 2025)

Gentilly system – 2024

Dose Data (nGy/month)

Station	Nuclide	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
La Prade	Argon-41	-	-	-	x	-	-	-	-	-	-	-	-
	Xenon-133	-	-	-	x	-	-	-	-	-	-	-	-
	Xenon-135	-	-	-	x	-	-	-	-	-	-	-	-
	Total Air KERMA	19415	17819	20671	x	21712	21706	22314	23159	21383	22222	21845	21720
Port	Argon-41	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-133	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-135	-	-	-	-	-	-	-	-	-	-	-	-
	Total Air KERMA	7900	6767	8265	8426	8963	9371	9550	9742	9263	9786	9816	9606
Victoriaville	Argon-41	-	-	-	-	-	x	x	-	-	-	-	-
	Xenon-133	-	-	-	-	-	x	x	-	-	-	-	-
	Xenon-135	-	-	-	-	-	x	x	-	-	-	-	-
	Total Air KERMA	18491	16898	20036	19793	20927	x	x	21509	20799	21467	21127	20875
Trois Rivières	Argon-41	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-133	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-135	-	-	-	-	-	-	-	-	-	-	-	-
	Total Air KERMA	11149	9408	12141	13308	14092	14388	14718	14848	14152	14598	14365	13746
Québec City	Argon-41	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-133	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-135	-	-	-	-	-	-	-	-	-	-	-	-
	Total Air KERMA	9188	8518	9198	9485	10027	10240	10462	10691	10079	10564	10542	10404
- (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 – 2024

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	15246	14556	16241	16467	16946	x	x	x	15412	15737	15069	13022
Scott Point	Argon-41	-	-	-	10	-	-	-	-	-	-	x	x
	Xenon-133	-	-	-	-	-	-	-	-	-	-	x	x
	Xenon-135	-	-	-	-	-	-	-	-	-	-	x	x
	Total Air KERMA	11666	10491	11597	11745	11928	11985	12777	13505	13508	13705	x	x
Kincardine	Argon-41	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-133	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-135	-	-	-	-	-	-	-	-	-	-	-	-
	Total Air KERMA	15926	14456	15605	15705	15946	15735	16803	16953	16620	17165	16827	16382
Inverhuron	Argon-41	-	-	11	-	-	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	13768	12545	13891	13965	14228	x	x	x	x	x	x	x
Port Elgin	Argon-41	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-133	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-135	-	-	-	-	-	-	-	-	-	-	-	-
	Total Air KERMA	11865	10747	12270	12496	12596	12400	13072	12841	12872	13411	13501	12667
Infocentre	Argon-41	-	-	-	8	-	-	-	-	-	-	-	-
	Xenon-133	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-135	-	-	-	-	-	-	-	-	-	-	-	-
	Total Air KERMA	20186	19378	21687	21720	22170	22658	24320	24843	24631	25961	24697	22026
Tiverton	Argon-41	-	-	7	-	-	-	-	-	-	-	-	-
	Xenon-133	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-135	-	-	-	-	-	-	-	-	-	-	-	-
	Total Air KERMA	15792	15068	17496	17842	18405	18207	19163	19171	18655	25961	24697	22026
Shore 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	12931	11576	13072	13186	13488	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 – 2024

Dose Data (nGy/month)

Station	Nuclide	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Scarborough	Argon-41	-	-	12	12	10	-	-	6	-	-	-	-
	Xenon-133	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-135	-	-	-	-	-	-	-	-	-	-	-	-
	Total Air KERMA	13028	11556	12230	12117	12189	12149	12812	12704	12770	12913	12846	13051
Bowmanville	Argon-41	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-133	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-135	-	-	-	-	-	-	-	-	-	-	-	-
	Total Air KERMA	31117	28721	30904	30214	31133	30917	31870	31976	31681	32075	31015	31504
Mississauga	Argon-41	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-133	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-135	-	-	-	-	-	-	-	-	-	-	-	-
	Total Air KERMA	12841	11593	12360	12499	12618	12591	13190	13292	13218	13245	13054	13173
Toronto	Argon-41	-	-	-	-	-	x	x	-	-	-	-	-
	Xenon-133	-	-	-	-	-	x	x	-	-	-	-	-
	Xenon-135	-	-	-	-	-	x	x	-	-	-	-	-
	Total Air KERMA	13090	11513	12266	12358	12576	x	x	12974	13117	13140	13183	13331
Pickering	Argon-41	-	18	16	24	55	27	21	23	18	-	6	-
	Xenon-133	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-135	-	-	-	-	-	-	-	-	-	-	-	-
	Total Air KERMA	16321	14827	15842	15660	16110	16146	16765	16854	16913	17408	16859	16792
Oshawa	Argon-41	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-133	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-135	-	-	-	-	-	-	-	-	-	-	-	-
	Total Air KERMA	13781	12378	13278	13152	13458	13650	14067	14001	14121	14203	13873	14070
Markham	Argon-41	-	-	9	12	9	15	-	9	6	-	-	-
	Xenon-133	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-135	-	-	-	-	-	-	-	-	-	-	-	-
	Total Air KERMA	16104	14611	15557	15607	15882	15653	16317	16446	16582	17146	16593	16413
Ajax	Argon-41	67	28	29	31	11	37	27	23	9	-	20	20
	Xenon-133	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-135	-	-	-	-	-	-	-	-	-	-	-	-
	Total Air KERMA	21839	19724	21093	20574	21406	22232	22845	23337	23388	23835	23231	23139
Port Hope	Argon-41	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-133	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-135	-	-	-	-	-	-	-	-	-	-	-	-
	Total Air KERMA	19664	17878	19384	18918	19156	18976	19828	19893	19542	19621	19302	20066
Hamilton	Argon-41	553	676	960	732	943	2113	6762	x	2023	2127	1191	1241
	Xenon-133	13	13	16	15	23	6	-	x	-	39	19	27
	Xenon-135	-	-	-	-	-	3	-	x	-	-	-	-
	Total Air KERMA	23285	21390	24050	25204	25731	25369	35486	x	20843	20321	20045	19670
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	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-133	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-135	-	-	-	-	-	-	-	-	-	-	-	-
	Total Air KERMA	11923	10387	11037	10834	11200	11275	11723	11999	11873	11946	11761	12024
- (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 – 2024

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	19613	17693	19116	18801	19542	19608	20266	20592	20419	20758	19944	19730
Bowmanville	Argon-41	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-133	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-135	-	-	-	-	-	-	-	-	-	-	-	-
	Total Air KERMA	21404	19634	21051	20658	21406	21705	22434	22795	22582	22670	21008	21019
Energy Drive East	Argon-41	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-133	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-135	-	-	-	-	-	-	-	-	-	-	-	-
	Total Air KERMA	22154	20267	21926	21503	22977	22898	22733	23517	23550	23165	22396	22306
Crago Road	Argon-41	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-133	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-135	-	-	-	-	-	-	-	-	-	-	-	-
	Total Air KERMA	21853	19866	21560	21385	22102	22472	23123	23421	23519	23519	22718	22824
Osborne Road	Argon-41	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-133	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-135	-	-	-	-	-	-	-	-	-	-	-	-
	Total Air KERMA	22134	19981	21592	21423	22462	22421	23031	23029	22652	22790	22265	22515
Courtice Treatment Plant	Argon-41	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-133	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-135	-	-	-	-	-	-	-	-	-	-	-	-
	Total Air KERMA	22246	20069	21467	21329	22185	22311	22937	23151	23008	23151	22232	22405
Holt Road	Argon-41	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-133	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-135	-	-	-	-	-	-	-	-	-	-	-	-
	Total Air KERMA	21423	20009	21714	21125	22733	23050	23785	23901	24314	24467	23132	22789
- (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 – 2024

Dose Data (nGy/month)

Station	Nuclide	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Montgomery Road	Argon-41	426	491	283	395	189	447	435	268	128	11	261	68
	Xenon-133	8	13	8	12	5	11	9	6	3	-	6	-
	Xenon-135	-	-	-	-	-	-	-	-	-	-	-	-
	Total Air KERMA	20571	18620	19706	19620	20295	20874	21521	21750	21801	21898	21614	21248
Kinsmen Park	Argon-41	38	166	211	327	311	243	348	201	98	12	101	-
	Xenon-133	-	-	4	7	6	4	5	3	-	-	-	-
	Xenon-135	-	-	-	-	-	-	-	-	-	-	-	-
	Total Air KERMA	20412	18470	19761	19607	20102	20745	21687	21935	21928	22151	21609	21239
Liverpool Road	Argon-41	101	101	97	138	233	156	126	150	136	16	247	8
	Xenon-133	-	-	-	3	5	3	3	3	3	-	4	-
	Xenon-135	-	-	-	-	-	-	-	-	-	-	-	-
	Total Air KERMA	18877	17051	18264	18032	18601	18988	19582	19759	19804	20138	19624	19358
East Boundary	Argon-41	533	188	204	204	87	240	142	160	67	9	179	143
	Xenon-133	10	4	6	6	-	6	-	-	-	-	7	4
	Xenon-135	-	-	-	-	-	-	-	-	-	-	-	-
	Total Air KERMA	26347	23759	25491	25096	25845	26253	27105	27437	27038	27338	26712	26649
Central Maintenance	Argon-41	69	304	312	575	303	544	492	213	158	15	224	9
	Xenon-133	-	6	7	15	7	13	10	3	3	-	6	-
	Xenon-135	-	-	-	-	-	-	-	-	-	-	-	-
	Total Air KERMA	16560	14991	16101	16237	16368	16751	17242	17064	17168	17202	17103	17057
Beachpoint Promenade	Argon-41	61	87	148	234	301	290	127	62	142	-	65	11
	Xenon-133	-	-	-	7	6	5	-	-	-	-	-	-
	Xenon-135	-	-	-	-	-	-	-	-	-	-	-	-
	Total Air KERMA	19702	17749	19008	18906	19530	19430	20053	20078	20006	20361	19843	19911
CMS Storage Yard	Argon-41	223	621	403	834	408	679	717	428	209	13	238	35
	Xenon-133	7	16	11	23	12	19	18	11	6	-	12	4
	Xenon-135	-	-	-	-	-	-	-	-	-	-	-	-
	Total Air KERMA	15336	14075	14827	14919	14995	15457	16089	15943	15874	15938	15884	15879
Alex Robertson Road	Argon-41	27	137	149	203	264	167	228	124	83	7	63	-
	Xenon-133	-	-	-	4	5	3	5	-	-	-	-	-
	Xenon-135	-	-	-	-	-	-	-	-	-	-	-	-
	Total Air KERMA	24430	22555	24378	23745	24577	25024	26150	26692	26922	27515	26537	26077
- (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 – 2024

Dose Data (nGy/month)

Station	Nuclide	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Chapeau	Argon-41	x	x	-	-	-	-	-	-	-	-	-	-
	Xenon-133	x	x	-	-	-	-	-	-	-	-	-	-
	Xenon-135	x	x	-	-	-	-	-	-	-	-	-	-
	Total Air KERMA	x	x	19542	19998	21119	21446	21852	22363	21770	21907	20941	19228
Chalk River	Argon-41	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-133	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-135	-	-	-	-	-	-	-	-	-	-	-	-
	Total Air KERMA	28594	26848	30978	31453	32760	32236	33095	33576	32662	33553	33459	32232
Deep River	Argon-41	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-133	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-135	-	-	-	-	-	-	-	-	-	-	-	-
	Total Air KERMA	28258	24996	29961	30461	31887	31130	32256	32710	31660	32645	31317	30489
Ottawa	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	x	x	x	14548
Petawawa	Argon-41	x	x	-	-	-	-	-	-	-	-	-	-
	Xenon-133	x	x	-	-	-	-	-	-	-	-	-	-
	Xenon-135	x	x	-	-	-	-	-	-	-	-	-	-
	Total Air KERMA	x	x	26927	26554	27773	27470	28118	28633	27915	28446	27302	25255
Sheenboro	Argon-41	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-133	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-135	-	-	-	-	-	-	-	-	-	-	-	-
	Total Air KERMA	21561	19233	24160	24437	25702	25477	26244	26872	25982	26386	25381	23291
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 – 2024

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	19290	17145	18438	17984	18442	19148	19930	20520	20008	20618	19814	20323
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	20891	16598	16425	20385	30612	30598	32446	32520	31177	31020	24971	22281
Regina	Argon-41	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-133	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-135	-	-	-	-	-	-	-	-	-	-	-	-
	Total Air KERMA	19636	16783	16358	16999	18440	18305	19368	19657	19503	20279	19472	18358
Calgary	Argon-41	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-133	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-135	-	-	-	-	-	-	-	-	-	-	-	-
	Total Air KERMA	13915	11860	12624	12105	12737	12512	13221	13997	13622	13458	13646	13622
Winnipeg	Argon-41	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-133	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-135	-	-	-	-	-	-	-	-	-	-	-	-
	Total Air KERMA	14780	13601	13746	13803	14629	14344	15169	15425	15344	15745	16072	15122
Thunder Bay	Argon-41	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-133	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-135	-	-	-	-	-	-	-	-	-	-	-	-
	Total Air KERMA	15884	15080	15728	15480	16201	16086	16531	17153	16861	17510	17373	16476
Montréal	Argon-41	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-133	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-135	-	-	-	-	-	-	-	-	-	-	-	-
	Total Air KERMA	12462	11905	13096	12710	13244	13154	13534	13589	13063	13572	13238	13785
Charlottetown	Argon-41	x	x	x	-	-	-	-	-	-	-	-	-
	Xenon-133	x	x	x	-	-	-	-	-	-	-	-	-
	Xenon-135	x	x	x	-	-	-	-	-	-	-	-	-
	Total Air KERMA	x	x	x	14870	15499	15446	15962	16123	15467	16106	15829	15584
St. John's	Argon-41	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-133	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-135	-	-	-	-	-	-	-	-	-	-	-	-
	Total Air KERMA	22548	18641	21150	22620	23546	22950	23797	23831	23092	23943	23633	24090
Whitehorse	Argon-41	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-133	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-135	-	-	-	-	-	-	-	-	-	-	-	-
	Total Air KERMA	24581	21124	22855	25965	27679	27522	28525	28612	27609	27546	22960	21696
Iqaluit	Argon-41	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-133	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-135	-	-	-	-	-	-	-	-	-	-	-	-
	Total Air KERMA	14139	11673	11386	11291	13491	25096	30056	31689	29354	30284	24550	23059
Resolute	Argon-41	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-133	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-135	-	-	-	-	-	-	-	-	-	-	-	-
	Total Air KERMA	9041	8177	8563	7888	7807	9516	13423	13645	13759	12122	9593	8725
Haida Gwaii	Argon-41	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-133	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-135	-	-	-	-	-	-	-	-	-	-	-	-
	Total Air KERMA	16104	14360	15342	14674	15752	14576	15790	17159	16266	15649	15261	15726
Saskatoon	Argon-41	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-133	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-135	-	-	-	-	-	-	-	-	-	-	-	-
	Total Air KERMA	24946	22391	21505	22275	23110	22793	23856	24107	23960	24747	23893	23522
Kelowna	Argon-41	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-133	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-135	-	-	-	-	-	-	-	-	-	-	-	-
	Total Air KERMA	32892	31260	32635	31421	32620	31794	33254	33974	32774	34096	32893	34340
Fredericton	Argon-41	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-133	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-135	-	-	-	-	-	-	-	-	-	-	-	-
	Total Air KERMA	35488	32272	36379	36188	37738	37020	38226	38139	37956	39593	37334	36812
Edmonton	Argon-41	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-133	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-135	-	-	-	-	-	-	-	-	-	-	-	-
	Total Air KERMA	21030	17580	17703	17440	18403	17479	18929	19345	18714	19874	19040	18889
Edmundston	Argon-41	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-133	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-135	-	-	-	-	-	-	-	-	-	-	-	-
	Total Air KERMA	13967	12315	14594	14920	16066	15957	16514	16775	16218	16748	15934	15511
Sherbrooke	Argon-41	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-133	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-135	-	-	-	-	-	-	-	-	-	-	-	-
	Total Air KERMA	15513	13425	17463	17584	18982	19761	20056	20143	19613	20333	19395	17466
Cambridge Bay	Argon-41	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-133	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-135	-	-	-	-	-	-	-	-	-	-	-	-
	Total Air KERMA	21848	18920	19220	17725	18978	25390	28283	27845	27832	25293	23001	22656
London	Argon-41	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-133	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-135	-	-	-	-	-	-	-	-	-	-	-	-
	Total Air KERMA	17293	16346	17692	17314	17641	17822	18973	18647	18241	18909	17963	16329
Sudbury	Argon-41	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-133	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-135	-	-	-	-	-	-	-	-	-	-	-	-
	Total Air KERMA	33228	31461	35162	34492	35426	34803	35725	35952	35294	36409	35262	34968
- (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 – 2024

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	24167	21785	24409	23851	25390	25774	25627	25783	25829	27011	25648	25057
Digby	Argon-41	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-133	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-135	-	-	-	-	-	-	-	-	-	-	-	-
	Total Air KERMA	29345	27055	29366	28297	29437	28862	29747	29850	28764	29981	29248	29596
Dipper Harbour	Argon-41	-	-	-	-	-	-	-	x	x	x	x	x
	Xenon-133	-	-	-	-	-	-	-	x	x	x	x	x
	Xenon-135	-	-	-	-	-	-	-	x	x	x	x	x
	Total Air KERMA	27374	24318	27057	27505	29331	29274	29432	x	x	x	x	x
Emergency Centre	Argon-41	-	-	-	-	-	-	-	x	-	x	x	x
	Xenon-133	-	-	-	-	-	-	-	x	-	x	x	x
	Xenon-135	-	-	-	-	-	-	-	x	-	x	x	x
	Total Air KERMA	36289	26791	40416	41761	44259	43658	44616	x	43935	x	x	x
Saint John	Argon-41	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-133	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-135	-	-	-	-	-	-	-	-	-	-	-	-
	Total Air KERMA	24047	22317	23979	23029	23719	23266	23993	24043	23290	24400	23671	23809
Welch Cove	Argon-41	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-133	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-135	-	-	-	-	-	-	-	-	-	-	-	-
	Total Air KERMA	18297	16172	17840	17969	19358	19811	19624	19742	20121	21167	20336	19659
Kingston NS	Argon-41	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-133	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-135	-	-	-	-	-	-	-	-	-	-	-	-
	Total Air KERMA	19288	17038	19205	18499	19368	19069	19644	19830	18929	19927	19286	19170
Off-Site Emergency Operations Centre	Argon-41	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-133	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-135	-	-	-	-	-	-	-	-	-	-	-	-
	Total Air KERMA	34532	32373	36753	35606	37077	36407	37029	37272	36704	38006	36325	35021
- (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 – 2024

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	13975	12804	13456	12882	13432	13175	13909	14054	13509	13798	13433	13660
Metchosin	Argon-41	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-133	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-135	-	-	-	-	-	-	-	-	-	-	-	-
	Total Air KERMA	21148	19545	20605	19838	20770	20320	21306	21486	20669	21143	20567	21066
Victoria	Argon-41	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-133	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-135	-	-	-	-	-	-	-	-	-	-	-	-
	Total Air KERMA	8895	8084	8507	7993	8210	7946	8267	8397	8113	8482	8598	8721
Nanaimo	Argon-41	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-133	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-135	-	-	-	-	-	-	-	-	-	-	-	-
	Total Air KERMA	14324	13134	13798	13173	13574	13166	13701	13918	13426	13992	14291	14517
Sidney	Argon-41	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-133	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-135	-	-	-	-	-	-	-	-	-	-	-	-
	Total Air KERMA	11866	10859	11205	10849	11579	11401	12365	12401	11742	11633	11306	11596
- (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 – 2024

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	26078	22623	25912	25028	25915	25412	26115	26294	25419	26341	25531	25652
Dartmouth	Argon-41	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-133	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-135	-	-	-	-	-	-	-	-	-	-	-	-
	Total Air KERMA	21202	17348	21238	20482	21567	21227	22039	22079	21516	22338	21551	21036
Cole Harbour Road	Argon-41	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-133	-	-	-	-	-	-	-	-	-	-	-	-
	Xenon-135	-	-	-	-	-	-	-	-	-	-	-	-
	Total Air KERMA	19891	15108	19843	19358	20647	20381	21160	21479	20599	21135	20517	19626
- (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.