The Onondaga County Resource Recovery Agency wants your old thermometers or thermostats. It’s an attempt to get mercury out of the waste stream.
If you look at an old thermometer or thermostat hanging around the house and see a ball of silver mercury in it, don’t throw it in the trash. Exposure to even small amounts of mercury can cause health damage to humans and wildlife.
Kathleen Carroll of Covanta, which runs Onondaga County’s trash burner, says they do have pollution controls that minimize the danger of the items containing mercury in the waste stream.