The best option is to send the lamps to a qualified recycler that separates the glass, mercury and metal for reuse. Lead is also a concern for many lamp models. When carelessly handled or improperly disposed, spent lamps may release mercury into the air, water or soil, posing a threat to human health and the environment. Once released, mercury accumulates in living things and in the environment and is difficult to clean up. Mercury is one of 27 'persistent, bioaccumulative and toxic' chemicals which the Washington Department of Ecology has targeted for virtual elimination by 2025.
Fluorescent lighting is still an environmentally responsible choice.
Recycling the used lamps is another way businesses can reduce liability and prevent contamination. The property manager forum is part of a larger mercury education and collection effort sponsored by the Local Hazardous Waste Management Program through King County's Department of Natural Resources. This jointly operated, regional program provides technical assistance to more than 63,000 businesses and 1.6 million citizens to reduce and properly manage hazardous waste. By visiting this and other King County web pages, you expressly agree to be bound by terms and conditions of the site.