Energy-saving lamps of the poles are ordinary tungsten. Tungsten wire electric heating, can emit electrons. On both sides of the bulb and high voltage, the formation of an electric field, the electrons will in tubes is accelerated, forming a certain velocity and energy of electron flow., is being pumped into the vacuum tubes filled with mercury inside, is what we called mercury.In the case of electric heating tubes, the mercury from liquid evaporation becomes a gas. Mercury atoms form the free state.Electron flow of electrons in a certain velocity on the mercury atoms, the mercury atoms were stimulated, become excited state electric ions. Called step happens, excited state after a short period of time of mercury is spontaneously fall back to its original state, at the same time release ultraviolet light, ultraviolet light cannot be used for lighting. So we put some fluorescent material on the inner wall of the tube, under the bombardment of ultraviolet light, fluorescent material after being stimulated, can send out the good lighting, can be used in our lighting.On the market is one of the more common energy-saving lamp tube has a general ordinary tricolor fluorescent tubes and gradually for the mainstream, compared with incandescent light bulb has the advantages of power saving.The difference is normal bulb color rendering on the low side, and three colors of the tubes is presented the natural sunlight, and on the color and light efficiency is more than the general ordinary lamp.From the above we can know, mercury is intermediary role in the energy-saving lamp tube, no mercury energy-saving lamps will not shine.Mercury in each tube is very few.According to check: a pipe diameter is 36 mm thick diameter fluorescent mercury content in 25 ~ 45 mg, a pipe diameter is 26 mm thin tube diameter fluorescent mercury content of 20 mg, a diameter of 10 mm compact fluorescent lamps to 10 mg of mercury content.Mercury is liquid at room temperature, it is a kind of liquid silvery liquid metal.Mercury in fluorescent tube as a gas discharge medium, not only improved the lamp lights, and enrich the variety of light source.So the current energy-saving light source contain mercury.Due to the boiling point of mercury is very low, can evaporate at room temperature, after the waste fluorescent lamp tube, immediately into the surrounding mercury vapor, instantaneous can make the concentration of mercury in ambient air reached 10 ~ 20 milligrams per cubic metre, the provisions of the state of mercury in air maximum allowable concentration of 0.01 mg per cubic meter.It can also be with air flow. Once in the body of the mercury exceeds a certain threshold, can damage a person's central nervous system, causing great harm to people's health.Mercury enters the body after it is difficult to be ruled out.The factory workers without exposure to mercury has more than 10 years, but now I check body mercury content is still high, but also in the line of mercury injection at any moment.So the author have an instinct for energy-saving lamps of fear.Actually mercury lamp in use process, and laborers typically have little pollution, pollution mainly scrap electric light source was discarded, after rupture caused by mercury diffusion into the air, harm to human health and environmental pollution.Due to difficulties and recovery value is too low, and it also has many other ills, so there is only one way to eliminate it.
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