Barometers Illegal in Garbage & Drains Contains Mercury Hazardous Waste Hazardous Waste Collection Antique barometers contain mercury and need special handling to avoid toxic exposure. City Specific Disposal OptionsPlease check with your city page (residential or commercial) to confirm if additional options are available, such as home collection, drop-off locations, and/or events. (These options vary per city.) Household Hazardous Waste (HHW) Drop-OffYour city or county may offer HHW drop-off sites and collection events.– Los Angeles County: S.A.F.E. Collection Centers and events– Riverside County– San Bernardino County– Ventura County Disposal Options For BusinessesHazardous waste cannot be placed in your containers. Schedule a Special Waste Collection by emailing [email protected] or calling Athens’ Customer Service Department at 888-336-6100. Fees may apply. Aneroid vs. Mercury Barometers Aneroid barometers are circular and have a pointer and dial face. These barometers do not typically contain any mercury, even though the unit of measure is inches or millimeters of mercury. For a mercury barometer, the reading is taken from the height of the mercury in a glass column, much like a thermometer. Never Throw Away Mercury Barometers Most antique barometers contain about 4 ounces of mercury that can be released into the environment if disposed of improperly. If your barometer contains mercury, dispose of it with hazardous waste. Ways to Reuse Repair Antique Barometers If you have a broken antique barometer, have it repaired instead of throwing it away. Check out Barometer Fair – they offer restoration and repair services.