Although mercury ore is a mineral has many uses, but it is also an easy environmental pollution minerals. In drinking water, there is a strict standard for mercury content, and the mercury content per 1 liter of water should not exceed 0.001 mg. Because mercury exceeds the standard, it will cause damage and influence to the human central nervous system. That can cause numbness and even dementia in the human nerves. For example, a "water sputum disease" in Japan is a mercury poisoning disease. The cause is that a bay in Japan is called Minamata Bay. There were mercury mines in the area. Mercury-containing sewage was discharged into the waters of the Minamata Bay, causing sea fish poisoning to die. Local cats have caused sea fish to be poisoned, causing numbness and dementia. ,even death. Local residents also became poisoned by eating sea fish. I didn't know why at that time. Later, scientists discovered that it was caused by high mercury content in seawater. Therefore, the condition of mercury poisoning is called "water rickets." In the future, the corresponding measures were taken to solve them.
In India, there used to be a house that was known as a "fighting house." The reason is that the person who entered it soon died, and there were many deaths. Over time, the house was called a "murderous house", and people would not dare to stay in the future. Later, the scientists conducted an investigation and found that there was a mirror factory next to the house. They released mercury vapor to pollute the environment during the mirroring. The people who stayed in the house were poisoned by breathing toxic mercury gas and causing poisoning. A person who inhales 2.5 mg of mercury vapor at a time can cause death. According to relevant information, there was a more capable emperor in the Qing Dynasty, called Emperor Yongzheng, but he was fascinated by alchemy and participated in the new self. Mercury vapour was released during alchemy, so he was violently dying in early years due to mercury vapour poisoning.
According to the above, mercury is not negligible for environmental pollution. Energy-saving lamps are now being promoted in life. An energy-saving light bulb contains up to 5 milligrams of mercury, enough to contaminate 1,800 tons of groundwater. Therefore, the energy-saving light bulb after use cannot be littered.
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