Potassium Iodide (KI) Distribution

The Canadian Nuclear Safety Commission (CNSC) has mandated that all residents within the primary zone of a nuclear installation have potassium iodide tablets available in their homes.

It is important to point out that the risk has not changed at Fermi 2 or Davis-Besse, however what has changed is the regulatory framework for Canadian nuclear installations.

If you have received KI Pills by mail or at a pick up location since July of this year, we ask that you check their expiry date. 

The expiry date should be November 2034. If your pills have an expiry date of March 2025, please contact the health unit at 519-258-2146 ext. 4445 or weki@wechu.org to receive replacement pills.

Potassium Iodide (KI) Pill Request

Please Note: The mail out option is no longer available as the KI Pills are temperature sensitive. The portal will reopen Spring 2025.

In-person pick-up is available at select locations (see below).

After receiving new KI pills, residents can safely throw out expired KI pills in their household garbage or drop them off at their local pharmacy.


While neither nuclear installations are regulated by the CNSC, the Windsor-Essex County Health Unit and the local municipalities want the residents living within the primary zone and secondary zones to be treated the same and be as prepared as all other Canadian residents living near a nuclear installation.


Primary zone map showing areas of Amhersetberg that fall within the primary zone

Primary Zone

Amherstburg residents living within the primary zone (16.1 km from Fermi 2) and Boblo Island can pick up KI pills at:

Libro Centre
3295 Meloche Road, Amherstburg, ON N9V 2Y8

Town Hall (Amherstburg)
271 Sandwich Street South, Amherstburg, ON N9V 2A5

Refer to location for hours of operation.

Map showing areas of Windsor and Essex County that fall within the secondary zone

Secondary Zone

All residents of Windsor and Essex County who live within the secondary zone (80km from Fermi 2 and Davis-Besse), can pick up KI pills at the following dates and locations:


Town of Essex

November 2, 2024 (10am-2pm)

  • Harrow and Colchester South Community Centre
    243 McAffee Street, Harrow
  • Essex Centre Sports Complex 
    60 Fairview Avenue West, Essex

WECHU Office Locations

Windsor Office
1005 Ouellette Avenue
Windsor, ON N9A 4J8

Leamington Office
33 Princess Street
Leamington, ON N8H 5C5

Hours of Operation
Monday to Friday
8:30am to 4:30pm


For further questions please call or email the Health Unit (519-258-2146 x 4445) or weki@wechu.org.