Comment Mercury hazard: Keep CFLs out of your trash (Score 1) 1137
Each CFL contains a small amount of mercury. According to the EPA reference below, 4mg per tube. Increasing numbers of spent CFLs going to incinerators and landfills put mercury back into the environment. While these lamps are still an overall environmental benefit in areas where electricity is generated from coal (which poisons the environment with lots of mercury), it is a net pollutant when the energy is coming from cleaner sources.
The important thing to remember is that CFLs need to be disposed of properly. Here are some links to help you out before you discard your next CFL:
- US EPA information on mercury in CFLs
- Lamp recycling resource (USA-oriented)
- Earth 911 has extensive recycling information on all types of items all over the world