CFL Bulbs and Mercury: What You Need to Know

Creative Commons image "A Red Light"  courtesty of wwward0 on Flickr

Compact fluorescent light bulbs (CFLs) contain an average of 4 milligrams of mercury, about the amount that would cover the tip of a ballpoint pen. This is much less than the amount contained in those old mercury thermometers, or even the amount deemed safe to consume in our diet from fish. But make no mistake, mercury is a neurological toxin. The EPA uses 0.1 micrograms per kilogram of body weight per day as the accepted exposure level for oral consumption without recognized adverse effects. Inhaling mercury vapor in significant amounts (greater than 0.025 mg/m3) can cause deficits in cognitive functioning, tremors, kidney damage and even death in cases of high exposure. If mercury is so toxic, why is it in a common household item such as a lightbulb?

Waste Not, Want Not? Recycling in Your Area and Around the Nation

recycling bins

Article by Shannon Gray and Carolyn Anthon. Recycling means different things to different people. For some, it is second nature to separate every paper, glass, plastic, and aluminum item from regular trash. Others simply don’t bother. While many are familiar with the outcome of not recycling (haven’t we all seen images of the tortured waterbirds and [...]