fényterhelést

Fényterhelést, often translated as light pollution, refers to the excessive or misdirected artificial light at night. It is a broad term encompassing various forms of light pollution, including sky glow, glare, light trespass, and clutter. Sky glow is the brightening of the night sky over inhabited areas, obscuring stars and celestial phenomena. Glare is the excessive brightness that causes visual discomfort or impairment. Light trespass occurs when light spills onto adjacent properties, disturbing residents or wildlife. Clutter describes confusing and excessive groupings of light sources.

The primary causes of fényterhelést are outdoor lighting used for purposes such as streetlights, building illumination, advertising, and security. Inefficient or poorly designed lighting fixtures, such as those that emit light in all directions rather than directing it downwards, contribute significantly. The increasing use of brighter and more widespread lighting systems exacerbates the problem.

The impacts of fényterhelést are far-reaching. It can disrupt natural ecosystems by affecting the behavior of nocturnal animals, including insects, birds, and bats, impacting their migration patterns, foraging habits, and reproductive cycles. For humans, excessive light at night can interfere with sleep patterns, potentially leading to health issues. It also diminishes the aesthetic quality of the night sky, hindering astronomical observation and reducing opportunities for stargazing. Furthermore, wasted light from poor illumination represents an unnecessary expenditure of energy and resources. Efforts to mitigate fényterhelést involve adopting responsible lighting practices, such as using shielded fixtures, lower intensity lighting, and motion sensors, as well as reducing overall illumination levels where possible.