Green Bulb Too Violet?

摘要

Some energy-saving light bulbs may emit ultraviolet (UV) radiation at levels that can result in exposure higher than guideline levels, says the Health Protection Agency (HPA). Its says the exposure is similar to bare skin being exposed to direct sunlight.rnIssuing its precautionary warning, the HPA said that certain types of compact fluorescent light bulbs (CFLs) should not be used where people are in close proximity - that is, closer than 30 cm - to the bare light bulb for more than one hour a day.The agency advises that CFLs should either be replaced by encapsulated (double envelope) type bulbs or the lamp should be moved further away.'We are advising people to avoid using the open light bulbs for prolonged close work until the problem is sorted out and to use encapsulated bulbs instead,'said the HPA's chief executive Justin McCracken.