C A N A D A

Toronto

Ottawa

Kenora

Fort Frances

Keewatin

Thunder Bay

Dryden GeraldtonLonglac

Marathon

HearstKapuskasing

Timmins

Iroquois Falls

Kirkland Lake

Englehart

New Liskeard

CobaltHaileybury

MattawaNorth Bay

Powassan

Capreol

Valley East

Sault Ste Marie

Owen SoundMeaford

Sarnia

Chatham

Windsor

PeterboroughBarrie

Port HopeCobourg

BrightonTrenton

BellevilleDeseronto

Kingston

Nepean

Hawkesbury

Mississippi Mills

Carleton PlaceSmiths Falls

Perth

Gananoque

Brockville

Prescott

Cornwall

ArnpriorRenfrew

PembrokePetawawa

Deep River

Sudbury

EspanolaThessalon

Blind River

Elliot Lake

HuntsvilleParry Sound

Bracebridge

Orillia

Gravenhurst

Petrolia

Kingsville

Aylmer

Midland

Leamington

St. Thomas

Amherstburg

Forest

TillsonburgSimcoe

Strathroy

Innisfil

Collingwood LindsayBeaverton

Cannington

Niagara Falls

Guelph

Oshawa

Kitchener

London

Toronto

Ottawa

Kenora

Fort Frances

Keewatin

Thunder Bay

Dryden GeraldtonLonglac

Marathon

HearstKapuskasing

Timmins

Iroquois Falls

Kirkland Lake

Englehart

New Liskeard

CobaltHaileybury

MattawaNorth Bay

Powassan

Capreol

Valley East

Sault Ste Marie

Owen SoundMeaford

Sarnia

Chatham-Kent

Windsor

PeterboroughBarrie

Port HopeCobourg

BrightonTrenton

BellevilleDeseronto

Kingston

Nepean

Hawkesbury

Mississippi Mills

Carleton PlaceSmiths Falls

Perth

Gananoque

Brockville

Prescott

Cornwall

ArnpriorRenfrew

PembrokePetawawa

Deep River

Sudbury

EspanolaThessalon

Blind River

Elliot Lake

HuntsvilleParry Sound

Bracebridge

Orillia

Gravenhurst

Petrolia

Kingsville

Aylmer

Midland

Leamington

St. Thomas

Amherstburg

Forest

TillsonburgSimcoe

Strathroy

Innisfil

Collingwood LindsayBeaverton

Cannington

Niagara Falls

Guelph

Oshawa

Kitchener

London

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Sault Ste Marie

Espanola

Thessalon Blind River

Elliot LakeSault Ste Marie

Espanola

Thessalon Blind River

Elliot Lake

*Important: All dwellings need to be tested for radon; a wide spectrum of radon readings can occur in all three zones.

In this map, the regions depicted reflect geologic conditions where higher radon readings might be found in Zone 1 versus Zone 2 and Zone 3 respectively.

Zone 1 – HighZone 2 – ElevatedZone 3 – Guarded

Relative Radon Hazard*

National capitalMost populous cityMajor cityMajor road/highwayRailwayInternational boundary

Radon Potential MapOntario

© 2013. Radon Environmental Management Corp.

Produced by Radon Environmental Management Corp. Published 2013.Copies may be obtained from Radon Environmental at www.radoncorp.com.

ISBN

978

-0-9

8776

45-6

-0

0100 100 200 km

Radon Environmental Management Corp.Committed to a healthy future