Universal wastes are hazardous wastes, generated by a wide variety of people, that contain mercury, lead, cadmium, copper and other substances hazardous to human and environmental health. In general, universal waste may not be discarded in solid waste landfills. Examples of these wastes are batteries, fluorescent tubes, and some electronic devices. The best way to reduce the harmful effects of the wastes on human health and the environment is to reduce consumption. The next best thing is to make sure you DON’T throw them in the trash!
Types of Universal Wastes and What makes them Hazardous
Batteries
Includes all batteries, AAA, AA, C, D, button cell, 9-volt, and all others, both rechargeable and single use
Contain Cadmium, Copper and (In older batteries) Mercury
Electronic Devices
Contain Lead
Fluorescent Bulbs
Contain Mercury
Lighting Fixtures and Ballasts
Contain Mercury
Mercury wastes like thermometers and toys
Contain Mercury
Aerosol Cans -
Non-empty
Contain Propane, Butane, Pesticides
Televisions
Contain Arsenic, Cadmium, Lead, PCBs
Source
"Universal Waste" California Department of Toxic Substances Control 9 Mar. 2010
http://www.dtsc.ca.gov/HazardousWaste/UniversalWaste/index.cfm