LED lighting is an overlooked advantage: no mercury

When we are concerned about the advantages of high efficiency, energy saving LED light source, and a very important advantage of LED lighting without mercury, but often overlooked. We know that Mercury is an extremely toxic substance, however, most of the electric light source contains mercury (Shui Yin), both the common fluorescent lamp, compact fluorescent lamp, high pressure mercury, or metal halide lamp contains mercury.

The boiling point of mercury is very low, it can be evaporated at room temperature. A source of waste disposal after crushing, immediately emit mercury vapor to the surrounding, the instantaneous mercury concentration in ambient air reached 10-20 mg / m3, exceeding the maximum allowable concentration of mercury in the air (0.01 mg / m3) 1000 to 2000 times. According to the study of mercury in the United States, Stanford University, pointed out that 1 mg of mercury is enough to pollute the drinking water of 5454.5 kilograms, so that it can not reach the safe drinking standards. Mercury caused by air and water pollution is very serious consequences, the water will be generated after eating CH3Hg, which is a kind of poison, as long as half a spoon can lead to death. Mercury itself can damage the central nervous system, the effect of its reproductive defects is also very serious, mercury can also damage the kidneys and liver, in sufficient doses can even lead to death. Mercury can be transferred in different ways in the soil, water, and even the atmosphere and food chain. As a result, persistence, easy migration and high bioaccumulation make mercury one of the most important environmental pollutants in the world. The history of the most serious mercury poisoning is Japan's Minamata disease event, because of the waters of Minamata Bay by mercury pollution and many hundreds of people died. Now the Japanese government has learned to handle waste fluorescent lamp all necessary toxic substances, which requires the purchase of ordinary fluorescent lamp must pay a price in advance to the times of toxic substances treatment fee.

Recently China government distributed free 100 million energy-saving lamps, although the recent foreign special low mercury energy-saving lamp mercury content can be reduced to below 5mg (do not know China government is not so low, but mercury lamps) did not reduce the harm, because the amount of mercury containing such a low mercury energy-saving lamp to 27.27 tons of drinking water pollution. The 100 million energy-saving lamps enough to pollute 27 tons of water, equivalent to the National People's drinking water for several years.