When we are concerned about the LED light source with high light efficiency, energy-saving advantages of the time, and LED lighting, a very important advantage – no mercury, but often ignored. We know that mercury is an extremely toxic substance, however, almost all currently used in both high-mercury light source (mercury), whether it is a common fluorescent lamp, CFL, or high-pressure mercury, metal halide lamp and so on containing mercury.
The low boiling point of mercury, can be evaporated at room temperature. Waste disposal of a broken light immediately after the distribution of mercury vapor into the surrounding, and instantly make the mercury in ambient air concentration of 10-20 mg / cubic meter, exceeding the state’s maximum allowable mercury concentration in air (0.01 mg / cubic m) of the 1000 to 2000 times. , According to Stanford University research on mercury that 1 mg of mercury pollution 5454.5 kg of drinking water is sufficient to make it reach the safety standards for drinking water. Mercury in air and water pollution caused by very serious consequences, are aquatic food will be generated after the CH3Hg, this is a highly toxic material, as long as half Ershao can cause human doom. Mercury itself will damage the central nervous system, reproductive defects caused by the effect it is very serious, mercury can damage the kidneys and liver, under conditions in sufficient doses can even lead to death.Mercury can be in different ways in the soil, water, and even the atmosphere, the food chain transfer. Therefore, persistence, and easy mobility and a high degree of bioaccumulation, making the mercury into the world one of the most interesting environmental pollutants. The worst in history to be mercury poisoning Minamata disease events in Japan, and it was not the Minamata Bay mercury pollution in water is many hundreds of people died. Now the Japanese government learned a lesson, requiring all of the waste fluorescent lamps treatment of toxic substances must be carried out, requiring people to buy ordinary fluorescent required to pay twice as much advance the toxic substance handling charges.
Recently, the Chinese government issued 100 million free energy-saving lamps, although recent foreign special energy-saving lamps, low mercury content of mercury can be reduced to 5mg or less (do not know the Chinese government is not the case issued energy-saving lamps, low mercury), but no did not reduce its hazardous nature, such as an energy-saving lamps, low mercury content of mercury is enough to 27.27 tons of drinking water pollution. The 100 million energy-saving lamps sufficient to 2.7 billion tons of polluted water, equivalent to the National People’s amount of drinking water for years.