Light pollution phenomenon, I believe that friends who love starry photography are familiar with this term. In the field of photography, it generally means that city lights are scattered by the atmosphere, which makes the city night sky very bright at night. If you stand on a distant mountain overlooking the city, you will find a yellow light that darkens the starry sky. Its principle is "light shielding phenomenon" under the interference of strong light nearby. There is a poem in ancient times: "The moon and stars are rare" is the same.
This phenomenon of "artificial extreme sunlight" not only obscures the starry sky above us, but also does great harm to the natural environment. The crisis of light damage spreads in every corner around us, which is an unavoidable pollution source for modern people living in cities. The terrible thing is that it is difficult for everyone to have a clear understanding of its harm.
Electroluminescence has changed people's living habits, and the ensuing light pollution has actually caused irreversible harm to the environment and our health. What is even more frightening is that we are still immersed in the dependence on the bright world without knowing it.
Subtle: Light pollution is very harmful to human body. Some people say that light pollution is a new form of environmental pollution after waste gas, waste water, waste residue and noise pollution. I disagree. Light pollution was born with the development of urbanization, and it has been born for a long time.
Light pollution is divided into several categories, including white light pollution, artificial extreme daily pollution and colored light pollution, which are collectively called "light pollution" or "noise light". These light hazards threaten our health everywhere.
In the season of strong sunshine, the reflection coefficient of toughened glass buildings, smooth wall tiles, aluminum alloy plates, polished granite, marble and white paint decoration is about 0/0 times larger than that of buildings decorated with green grass, forests, dark or rough masonry, which greatly exceeds the human body's bearing capacity.