As we all know, the sun is the source of energy, and the rainbow is the most beautiful. It can be seen that "light" is not only necessary but also flattering. But things have two sides, and "light" is no exception. According to the "Information Times" reported on October 9, Mr. Chen, the prospective owner of a real estate on Binjiang West Road in Guangzhou, was "disturbed" by the huge billboards flashing on the top of the building next door. Similar examples have long been commonplace. As early as 1996, Shanghai had the first complaint about light pollution caused by the refraction of glass curtain walls in urban buildings.
Originally, "the fire tree is full of silver and red flowers, and the glory is not the night." It is the bustling city night. But whoever thought that the light carrying the prosperity and vitality actually brought serious environmental pollution, some people called it noise pollution. "Noise pollution". According to a survey conducted in the United States, the light pollution caused by the Hua Lamp at night has made it impossible for one-fifth of the world's people to see the richness of the Milky Way.
Perhaps the flashing light of the searchlight outside the window will make you sleepless all night. Maybe the strong light of the roadside welding will sting your eyes... Nowadays, light pollution has become the fifth largest after water pollution, air pollution, noise pollution and solid waste pollution. Pollution. Not only are outdoor pollution sources such as glass curtain walls, neon lights, and advertising lights, indoor light sources are also the "perpetrators" of light pollution. For example, turning off the lights and watching TV will cause light pollution due to the obvious brightness drop. A statistic also shows that more than 90% of households in Beijing have indoor light pollution.
Light pollution not only affects human health, but also affects the environment. Excessive urban night illumination has even jeopardized normal astronomical observations. In terms of myopia, some health experts believe that China has invested a lot of money and manpower every year to prevent and treat myopia, but the effect is not great, because of various light pollution, not eye habits.
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