Ellen Abbott / WRVO News

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.

Mercury levels among fish caught in the Atlantic Ocean are dropping, but it's not the same case for fish from the Pacific Ocean.

Ellen Abbott / WRVO

Even though dredging and capping operations to clean up contamination in Onondaga Lake is in its early stages, a scientist consulting on the project says mercury levels are dropping better than expected.