Research Information System
2. International Baku conference on scientific research, Baku, Azerbaijan, 28 - 30 April 2021, vol.2, no.2, pp.149-156, (Full Text)
Light pollution; one of the serious types of environmental pollution such as air pollution,
water pollution, soil pollution, noise pollution, radioactive pollution.
The general definition of light pollution means using light in the wrong place, wrong amount,
wrong direction and at the wrong time. (B. Aslan 2018) The factor that makes light pollution
important is its negative effects on nature and the environment. Around the world, light
pollution has reached such high levels that, in a study conducted in 2016, approximately 92%
of the world's population and more than 99% of the European and American population live
under a sky contaminated with light pollution. (Falchi et al.2016).
However, its negative effects on electrical energy consumption in cities are quite high.
Wasted energy due to light pollution is called lost energy. The amount of lost energy is the
wasted electrical energy that causes us to illuminate the celestial sphere while trying to
illuminate our roads, streets, in other words all around us. Under these conditions, the
financial expense of the lighting fixtures used in parks, streets, billboards and the amount of
energy they spend comes to the fore. According to the research of the International Dark-Sky
Association, the energy loss due to bad and wrong outdoor lighting has reached an annual
average of 35%. (darksky.org) In other words, 35% of the total electrical energy consumed by
a city is the amount of energy that escapes to the sky and causes light pollution. It has been
observed that as the development level of the countries increases, the rate of wasted electrical
energy due to light pollution also increases.
To prevent light pollution and save energy, seminars, training and congresses should be
planned to increase awareness in the society. Cooperation between local governments and
relevant departments of universities should be increased. It is necessary to illuminate the
streets, parks and settlements with these luminaires by making more use of the developing
LED technology. Low wattage luminaires with higher lumens of light should be switched to.
External lighting should be kept off unless necessary.
It is up to people to leave a more visible sky to future generations and to save energy.
Keywords: Light Pollution, Artificial Enlightment, Waste Of Energy