light pollution


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Related to light pollution: Visual pollution

light pollution

One of the factors setting a limit on the faintness of stars that may be seen, photographed, or observed or recorded by telescope. Light pollution is an excessive amount of background light mostly arising from human activities and includes street and domestic lighting, lighting of public buildings, factories, and offices, and lighting of entertainment and sports facilities used at night. Not all light pollution is of human origin, however. On a moonless night there are still three natural sources, of roughly equal contribution; these are airglow and other atmospheric effects, the zodiacal light arising from the scattering of sunlight by Solar-System dust, and the background light of our Galaxy. See also seeing.

Light pollution

The wasted light from building and landscape designs that produces glare, is directed upward to the sky, or is directed off the site.
References in periodicals archive ?
On Earth, the increase in light pollution corresponds with the rise in population and technological advancement.
The light at night on itself might not have too much of a negative effect on its own, however, since wildlife rarely encounter just one stressor in their natural habitat, the combination of light pollution with additional stressors may have negative impacts on amphibian populations, researchers explained.
However, measures have been taken to address concerns by reducing light pollution and spillage, according to the latest application.
When people attempt this across the UK it will give the CPRE a way to see how bad light pollution is in every area of the UK.
To make Hehuanshan more friendly to star gazing, the DFDO had taken measures to manage lighting equipment in the Hehuanshan National Forest Recreation Area so that light pollution in the area could be reduced, the district office said, adding that the purpose of doing so is not only to make the beautiful night skies observed from Hehuanshan more enjoyable to visitors, but also to successfully help the mountains gain the status of Taiwan's first international dark sky park.
Additionally, a monochrome camera with a filter wheel allows you to image at full resolution through narrowband filters, which work extremely well to block many sources of light pollution.
Northumberland is supporting a nationwide Big Dipper campaign aimed at raising public awareness of light pollution.
Unfortunately, humans have been creating increasing amounts of light pollution through the use of cars, streetlamps, and building lighting, which is harming the natural world.
Few ever give much thought to light pollution, until it shines into their bedroom and keeps them awake at night.
But, as far as light pollution goes, I would think it applies equally to the author's hometown of San Francisco or the author's friend's hometown of Salt Lake City.
Muscat: Besides negatively affecting wildlife in the Sultanate, light pollution has also been burdening the Omani economy.
Most light pollution comes from street lights, traffic lights, neon signs, shop fronts, and stadiums, but it can come from anywhere with excessive light.