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  2. Visual pollution - Wikipedia

    en.wikipedia.org/wiki/Visual_pollution

    Visual pollution is the degradation of the visual environment due to unattractive or disruptive elements that negatively impact the aesthetic quality of an area. It can affect urban, suburban, and natural landscapes. [ 1 ]

  3. Light pollution - Wikipedia

    en.wikipedia.org/wiki/Light_pollution

    Light pollution is the presence of any unwanted, inappropriate, or excessive artificial lighting. [1] [2] In a descriptive sense, the term light pollution refers to the effects of any poorly implemented lighting sources, during the day or night. Light pollution can be understood not only as a phenomenon resulting from a specific source or kind ...

  4. Pollution - Wikipedia

    en.wikipedia.org/wiki/Pollution

    Pollution is the introduction of contaminants into the natural environment that cause harm. [1] Pollution can take the form of any substance (solid, liquid, or gas) or energy (such as radioactivity, heat, sound, or light). Pollutants, the components of pollution, can be either foreign substances/energies or naturally occurring contaminants.

  5. Eyesore - Wikipedia

    en.wikipedia.org/wiki/Eyesore

    An eyesore is something that is largely considered to look unpleasant or ugly. Its technical usage is as an alternative perspective to the notion of landmark.Common examples include dilapidated buildings, graffiti, litter, polluted areas, and excessive commercial signage such as billboards.

  6. Bortle scale - Wikipedia

    en.wikipedia.org/wiki/Bortle_scale

    light pollution domes visible in several directions; clouds are illuminated in the directions of the light sources, dark overhead; surroundings are clearly visible, even at a distance; the Milky Way well above the horizon is still impressive, but lacks detail; M33 is a difficult averted vision object, only visible when high in the sky

  7. Litter - Wikipedia

    en.wikipedia.org/wiki/Litter

    Visual pollution is a major effect of litter. Open containers such as paper cups, cardboard food packets, plastic drink bottles and aluminum drinks cans get filled up with rainwater, providing breeding locations for mosquitoes. In addition, a spark or a lightning flash can start a fire if it strikes litter such as a paper bag or cardboard box.

  8. Haze - Wikipedia

    en.wikipedia.org/wiki/Haze

    In the United States, the Interagency Monitoring of Protected Visual Environments (IMPROVE) program was developed as a collaborative effort between the US EPA and the National Park Service in order to establish the chemical composition of haze in National Parks and establish air pollution control measures in order to restore the visibility of ...

  9. Urban decay - Wikipedia

    en.wikipedia.org/wiki/Urban_decay

    Elevated levels of pollution (e.g., air pollution, noise pollution, water pollution, and light pollution) Desolate cityscape known as greyfield land or urban prairie; Since the 1970s and 1980s, urban decay has been a phenomenon associated with some Western cities, especially in North America and parts of Europe.