1. From a broken thermometer
Mercury Spill
From a broken thermometer

2. Broken Mercury Thermometer
If Hg droplets or pools are observed:
Isolate spill area and do not walk through the area
Call DEHS: / after hours
Leave any shoes or clothing contaminated with Hg droplets aside for cleaning
A specialized staff will come to monitor, decontaminate and cleanup
If Hg spills on a heated surface (hot plates, ovens)
Turn off equipment and evacuate the lab.
If a Hg thermometer bulb is cracked:
Seal in plastic bag and dab immediate area with a wet towel and add to plastic bag.
Manifest as Hg-containing waste
Accidental releases (drain, soil, trash)
Report to DEHS

3. Broken Mercury Thermometer
Prevention:
Use the free Hg thermometer exchange program through DEHS:
One to one exchange of Hg thermometers for non-mercury thermometers
Non-mercurcy thermometers are suitable for temperatures up to 260°C
If Hg thermometer is absolutely necessary, use a teflon coated Hg thermometer