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Smoke Detectors:
Smoke detectors typically fall within two categories: photoelectric and ionization. When it comes to disposal, old photoelectric detectors can be safely put in the trash, so long as you remove the battery first. Read on for information about ionization detectors.
Ionization-Based Smoke Detectors:
Ionization detectors contain a small amount of Americium 241, a radioactive isotope. When in use, these detectors are perfectly safe, as the radioactive material is shielded by a metal chamber inside the device. If dismantled, however, the radioactive material can become exposed. For this reason, you should never try to take apart an old ionization detector.
So how do I dispose of an ionization detector?
Some local hazardous waste collection centers will accept ionization smoke detectors.
You can also try to send your old detector back to the original manufacturer. Locate the brand name and/or address on the back of the device, or find the information in the user’s manual. After removing the battery, send the whole unit back intact (do not try to disassemble) with a note indicating that the device is intended for disposal.
For more information call 1-800-963-4776 or check out the website http://www.lessismore.org/materials/99-smoke-detectors
and https://about.usps.com/postal-bulletin/2012/pb22334/html/cover_025.htm
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UW–Madison Extension Fond du Lac County is Moving!
The UW–Madison Division of Extension Fond du Lac County office will be relocating from the Fond du Lac County Campus at 400 University Drive to the Fond du Lac County Government Center, 160 S. Macy Street, second floor, effective December 1, 2025. 👉 Please note: Office staff and educators will be working remotely October 27–31 as we move […]
The UW Extension Fond du Lac County office is moving effective December 1, 2025, to the Fond du Lac County Government offices at 160 S. Macy St on the 2nd floor.
Please note: The office will be closed with staff and educators working remotely October 27–31 as we move the offices and equipment to the new location. Thank you for your patience as we make this transition.
Our Office
UW-Madison Division of Extension
Fond du Lac County
160 South Macy St, 2nd Floor
Fond du Lac, WI 54935
Phone: (920) 906-4620
Fax: (920) 906-4638
711 for Relay
Hours: M-F 8am – 4:30pm
The office is closed all major holidays and the day after Thanksgiving.
