Compact Fluorescent Lamps (CFL) and Mercury Review of the Maine Compact Fluorescent Lamp study
The Australian government has taken a policy decision to phase out the use of incandescent light bulbs in conventional light fittings in favour of more energy-efficient light globes based on compact fluorescent lamp (CFL) technology. These CFLs use essentially the same technology as linear fluorescent tubes which have been used in both domestic and commercial settings for many years.
Replacement of conventional incandescent light globes with CFLs is a measure designed to improve energy efficiency because of their relatively longer lifespan and lower energy consumption. However CFLs, like the predecessor linear fluorescent tubes which have been in use for decades, contain small amounts of elemental mercury (Hg) which may be released in the event of breakage.
The Maine Study measured the amount of Hg vapour released from broken CFLs under various conditions, including some with and without adequate ventilation and/or cleanup of the area.