Light pollution is placed next to various types of pollution such as: air, water, noise pollution, radioactive materials, electromagnetic pollution, heat and landscape pollution. A simple example of light pollution is the absence of clouds above the city of Tehran in the heights of Shemiran due to the reflection of light from the city. By this example, any form of misuse, unwanted, unnecessary, or excessive standard use of artificial light at night is called light pollution.
In addition to astronomers’ concerns about light pollution and the impossibility of seeing the night sky, perhaps the main concern in this type of pollution is creating unrest and disturbing the peace of mind of people in their night life. In a living room at night, excessive glare of light sources or not adjusting the TV contrast to the subject, can cause mental imbalance in the decisions and actions of the person during the day without him realizing it.
Today, it is not possible to prevent light pollution, design and lighting and create beauties without having technical and specialized knowledge and using special photometric tools.
Types of light pollution in homes and urban environments:
Lamps without lights
Window without curtains
Horizontal lights (building headlights that are mostly accent or decorative)
Forty chandelier lights
Extra lamps (lights that have no effect on or off)
Destructive effects of light pollution:
Disrupting the human mental balance and causing certain diseases
It is interesting that disturbing the balance of nature (impaired growth of plants and animals, mortality of insects, impaired routing of migratory birds and shortening the life of animals, etc.) that LED lamps are the best way to prevent these cases (paragraph 2).
Create stunning and create events
Causing light disturbance (sleep disturbance, nervous disorder, etc.)
Contradiction with aesthetic principles
Loss of the night sky