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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. 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.

  4. Naked eye - Wikipedia

    en.wikipedia.org/wiki/Naked_eye

    Light pollution limits viewing of celestial sights, as in this night scene from Moscow. Naked eye, also called bare eye or unaided eye, is the practice of engaging in visual perception unaided by a magnifying, light-collecting optical instrument, such as a telescope or microscope, or eye protection.

  5. Environment of Karachi - Wikipedia

    en.wikipedia.org/wiki/Environment_of_Karachi

    Visual pollution, which can refer to the presence of overhead power lines, motorway billboards, scarred landforms (as from strip mining), open storage of trash, municipal solid waste or space debris. The Karachi Metropolitan Corporation (KMC) has imposed a ban on installing new advertising billboards, signboards and other hoardings in the ...

  6. 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.

  7. Pollution - Wikipedia

    en.wikipedia.org/wiki/Pollution

    Air pollution control system, known as a thermal oxidizer, decomposes hazard gases from industrial air streams at a factory in the United States. A dust collector in Pristina, Kosovo. Pollution control is a term used in environmental management. It refers to the control of emissions and effluents into air, water or soil.

  8. Visual impairment - Wikipedia

    en.wikipedia.org/wiki/Visual_impairment

    Visual or vision impairment (VI or VIP) is the partial or total inability of visual perception.In the absence of treatment such as corrective eyewear, assistive devices, and medical treatment, visual impairment may cause the individual difficulties with normal daily tasks, including reading and walking. [6]

  9. Visibility - Wikipedia

    en.wikipedia.org/wiki/Visibility

    Visibility perception depends on several physical and visual factors. A realistic definition should consider the fact that the human visual system (HVS) is highly sensitive to spatial frequencies, and then to use the Fourier transform and the contrast sensitivity function of the HVS to assess visibility. [2]