U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Carbon Monoxide Emergency

Yearly Carbon Monoxide Incidents!

 

In the calendar year 2025, Cambridge fire companies responded to 372 Carbon Monoxide alarm activations. Of these, 94 proved to be actual CO contamination in the building due to defective heating systems, improperly vented stoves & cooking systems, vehicles left running inside, power tools operating inside a building, etc.
Carbon monoxide cannot be detected by human senses. It is poisonous & potentially deadly. Ensure that your CO & smoke detectors are working!

 

If your detector goes into alarm, don't hesitate. Call 911 right away from a safe area or from outside the building. Emergency Communications staff will immediately dispatch a fire company to investigate and test the air. If there is CO contamination in the building, firefighters will initiate an action plan to determine the cause and make the area safe.

Don't gamble with the health of your family, your pets, or yourself.

Call 911 right away if your alarm activates!

Four gas meter

Ladder 4 banner

CO emergencies CY 2023 2

CO emergencies CY 2023 3

CO emergencies CY 2023 1

 

 

Page was posted on 1/12/2026 4:12 PM
Page was last modified on 1/12/2026 5:36 PM
Contact Us

How can we help?

Please provide as much detail below as possible so City staff can respond to your inquiry:

As a governmental entity, the Massachusetts Public Records Law applies to records made or received by the City. Any information received through use of this site is subject to the same provisions as information provided on paper.

Read our complete privacy statement


Service Requests

Enter a service request via SeeClickFix for things like missed trash pickups, potholes, etc., click here