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Noise pollution, or sound pollution, is the propagation of noise or sound with potential harmful effects on humans and animals. The source of outdoor noise worldwide is mainly caused by machines, transport and propagation systems.
Environmental noise is an accumulation of noise pollution that occurs outside. This noise can be caused by transport, industrial, and recreational activities. [1] Noise is frequently described as 'unwanted sound'. Within this context, environmental noise is generally present in some form in all areas of human, animal, or environmental activity.
Environmental noise regulations usually specify a maximum outdoor noise level of 60 to 65 dB(A), while occupational safety organizations recommend that the maximum exposure to noise is 40 hours per week at 85 to 90 dB(A). For every additional 3 dB(A), the maximum exposure time is reduced by a factor 2, e.g. 20 hours per week at 88 dB(A).
Cardiovascular health: Numerous studies have linked exposure to noise pollution to heart-health effects. “We now have a pretty robust body of evidence showing that noise is related to high blood ...
Light pollution – Excess artificial light in an environment; Lighting – Deliberate use of light to achieve practical or aesthetic effects; Noise pollution – Excessive displeasing noise is mainly known as noise pollution; Quicksand – Mixture of sand, silt or clay with water, which creates a liquefied soil when agitated
Various definitions of pollution exist, which may or may not recognize certain types, such as noise pollution or greenhouse gases.The United States Environmental Protection Administration defines pollution as "Any substances in water, soil, or air that degrade the natural quality of the environment, offend the senses of sight, taste, or smell, or cause a health hazard.
Because low-income neighborhoods are often at greater risk of noise pollution, the establishment of such zoning codes is often an environmental justice issue. [25] Mixed-use areas present especially difficult conflicts that require special attention to the need to protect people from the harmful effects of noise pollution.
Male white-crowned sparrows approach intruders more closely when exposed to noise pollution. Noise pollution is widespread, which is mostly a result of transportation networks. [9] Although there are many effects of noise pollution, two specific consequences are adjustments in population distribution and modified animal communication.