What Is Light Pollution And Why Is It A Problem ?

Today we are going to talk about What Is Light Pollution. This type of pollution produces anthropogenic and artificial light in the night environment. Light Pollution is intense, intense in the wrong direction but the light used carefully changes the natural conditions. Light Pollution as the main side effect of urbanization is guilty of compromising health, disrupting ecosystems and spoiling the aesthetic environment. So let's gather some more information about Light Pollution.

Light Pollution

What Is Light Pollution And Why Is It A Problem ?

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Definitions of Light Pollution

This pollution is also known as photo pollution. Light Pollution affects the environment, wildlife, humans, energy resources and astronomical research. Light Pollution is a side effect of industrial culture. Sources of Light Pollution include building exterior and interior lighting, outdoor area lighting, office fees, streetlights, advertising and illuminated sports venues. Light Pollution is now widespread in Europe, Asia and North America, and the world's most polluted type is the city of Hong Kong in China.

Tips To Prevent Light Pollution

This pollution can be reduced by improving outdoor lighting systems.

1. Turn It Off

This type of pollution should be reduced by turning off unnecessary outdoor lights when people are home for the night or before going to bed.

2. Sensor It

To reduce light pollution you need to be sure to check and adjust the sensitivity of the motion detector to prevent the lights from turning on and off unnecessarily.

3. Shield It

People can reduce the pollution by purchasing and installing reasonably priced shades and installing exit fixtures.

4. Be Involved

People should close blinds and curtains to prevent the spread of light. Propose lighting ordinances to your local and state governments to prevent light pollution.

5. Get Certified

People use IDA Certified Dark Sky Lighting to help reduce glare, light scattering and sky glow. This dark sky lighting does not scatter easily and should be mounted low to avoid high-angle brightness.

6. Cut It Off

People should choose cut-off angled external light fixtures to minimize the uplift of the horizontal plane, to avoid light from above and to reduce high-angle brightness.

The IESNA Provides The Following Cutoff Classifications.

  • Non-Cutoff
  • Semi-Cutoff
  • Cutoff 
  • Full Cutoff

7. Warm It Up

People should use CFLs and LED bulbs. The light of many LED lights diffuses easily into the atmosphere and impairs night vision and increases light pollution.

Effects of Light Pollution:

This type of pollution affects our environment and energy resources as well as wildlife and astronomy research. Mild Light Pollution also affects quality of life and human safety.

1. Wildlife

This type of pollution affects all wildlife food, mating, sleep, and migration cycles. Animals can also experience time inconsistencies in life when there is too much artificial light at night.

Birds like owls and nighthawks use starlight and moonlight to hunt and migrate at night. Artificial light sources can strip moonlight. In North America alone, 100 million birds die each year from artificial light collisions.

Small organisms like moths are naturally attracted to light. Due to light pollution such organisms reduce their population.

Light Pollution also affects amphibians such as frogs and salamanders. Artificial light also weakens the natural instincts of amphibians.

Light Pollution can also disturb other nocturnal reptiles.

2. Humans

Due to light pollution, Humans' 24-hour internal clock causes physical, mental and behavioral changes. Like animals, humans have a natural body rhythm. These bodily processes help people to wake up in the morning, sleep at night and maintain their health. Light Pollution can disrupt the natural rhythm of the human body which can negatively affect the overall health of the people.

3. Energy

A 2007 IDA study estimated that public outdoor light fixtures and 30% of all light emitted by Ted's waste is wasted, which is exactly 22 years of electricity.

4. Astronomy

This pollution changes people's view of the sky and the stars. Artificial light interferes with people's light spill and sky glow astronomical instruments, and even with the help of binoculars makes it difficult to see dizzy celestial objects.

5. Environment:

The IDA estimates that artificial lighting releases more than 12 million tons of carbon dioxide into the atmosphere each year, the most severe greenhouse gas in the world. This waste will take about 702 million trees to absorb the carbon dioxide produced by artificial light. Artificial light has been shown to reduce the amount of ozone polluting chemicals in trees by 5%.

Light Pollution

Light Pollution

Causes Of Light Pollution

This type of pollution is caused by using outdoor lights when and where they are not needed. Unshielded light fixtures emit more than 50% of their light on the side. It is also estimated that about 30% of outdoor lighting is wasted due to unnecessary use of light by people. In the United States alone, wasteful artificial lighting generates 1.7 million tons of carbon dioxide and 2.2 billion worth of wasted electricity each year.

Types Of Light Pollution

This type of pollution occurs in a variety of forms. Light pollution includes light traces, sky glow, and glare light clutter.

1. Sky Glow

This type of pollution is meant to brighten the night sky, especially in urban areas. Sky Glow comes from man-made and natural resources. Sky Glow causes this waste light from street lamps and buildings to be scattered and reflected by particles in the atmosphere and obstruct the view of the night sky. Humans who live in cities with very high glow levels in the sky cannot see many stars and galaxies.

2. Light Trespass

This type of light pollution is also known as spill light. Light Trespass occurs in the world when light fixtures illuminate other homes, businesses and areas beyond the property lines. Light Trespass is considered to be the most subjective form of light pollution because when, where and how much light is undesirable.

3. Light Clutter

This type of clutter refers to an excessive group of lights. Light clutter can confuse the grouping of lights and distract from obstacles. Light Clutter can cause potential accidents. Clusters of this type of light appear on roads surrounded by unshielded street lights and brightly lit advertisements. Light Clutter creates a dangerous environment for drivers and pilots.

4. Glare

Glare occurs when an unprotected light source hits reflective surfaces. Excessive brightness caused by glare poses a threat to public health. Depending on the intensity by this type of Light Pollution, color can lead to vision and visual effects.

Disability Glare describes effects such as in the fog, advancing the car's light, scattering light in the eye, reducing contrast as well as printing, with a significant reduction in visual abilities, and reflection of other dark areas.

Discomfort glare is not the cause of a dangerous situation. Discomfort glare is best annoying and irritating. Discomfort glare is the most common type of glaze. Discomfort glare can potentially cause fatigue if you experience discomfort glare over an extended period of time.

This Glare describes the effects of starvation of the sun. Blinding glare is also known as absolute glare. This Glare completely turns a blind eye and leaves a permanent lack of vision.

How to Measure Light Pollution

Measuring this type of pollution is a very complex process because the natural environment is not completely dark due to air spheres and scattered light. To get accurate measurements of light pollution, scientists use satellite images of the earth at night to determine the number and intensity of light sources and calculate the total brightness of the sky.

Sky can use quality meters and handheld devices to measure light pollution. This pollution can also be measured through mobile apps like Dark Sky Meter and Night Loss.

Light Pollution is placed in a physical model of scattering due to air molecules and aerosols to calculate very accurately and the satellite image of the world at night is used as a raw input for the number and intensity of light sources. The Bortle scale is a nine-level measurement system of light pollution.

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