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The aquatic ecosystems are known to use sound to navigate, find food, and protect themselves. In 2020, one of the worst mass stranding of whales occurred in Australia. Experts suggest that noise pollution plays a major role in the mass stranding of whales. [97] Noise pollution has also altered avian communities and diversity.
Electric and hybrid vehicles could reduce noise pollution, but only if those vehicles make up a high proportion of total vehicles on the road; even if traffic in an urban area reached a makeup of fifty percent electric vehicles, the overall noise reduction achieved would only be a few decibels and would be barely noticeable. [12]
noise pollution (environmental noise) - displeasing human or machine created sound that disrupts the activity or happiness of human or animal life. nonpoint source pollution - water pollution affecting a water body from diffuse sources, rather than a point source which discharges to a water body at a single location.
Noise pollution has been linked to metabolic syndrome, a group of health conditions including abdominal obesity and high cholesterol, triglycerides, blood sugar and blood pressure.
A study conducted in 2018 found that while aircraft noise in decibel level cannot cause any psychological-illness, there is a link to how aircraft noise causes an annoyance to residents which then leads to psychological illness. [24] The sensitivity of noise among people has an association with environmental noise and those affects. [24]
Noise control is a set of strategies to reduce noise pollution by reducing noise at its source, by inhibiting sound propagation using noise barriers or similar, or by the use of ear protection (earmuffs or earplugs). [20] Control at the source is the most cost-effective way of providing noise control.
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.
European technology began to emulate the United States treatment of roadway noise by the 1980s, although the national requirements of noise studies generally remain less stringent than the U.S. In developing countries, noise pollution from motor vehicles represents a significant impact, but technologies are not as advanced as in Western nations.