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Research suggests that noise pollution in the United States is the highest in low-income and racial minority neighborhoods, [5] and noise pollution associated with household electricity generators is an emerging environmental degradation in many developing nations. [6]
Causal relationships have been discovered between noise and psychological effects such as annoyance, psychiatric disorders, and effects on psychosocial well-being. [5] Exposure to intense levels of noise can cause personality changes and violent reactions. [33] Noise has also been shown to be a factor attributed to violent reactions. [34]
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 pollution has been linked to metabolic syndrome, a group of health conditions including abdominal obesity and high cholesterol, triglycerides, blood sugar and blood pressure.
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.
Roadway noise is the most prevalent form of environmental noise.Pictured: São Paulo, Brazil. Roadway noise is the collective sound energy emanating from motor vehicles.It consists chiefly of road surface, tire, engine/transmission, aerodynamic, and braking elements.
Diseases caused by pollution, lead to the chronic illness and deaths of about 8.4 million people each year. However, pollution receives a fraction of the interest from the global community. [1] This is in part because pollution causes so many diseases that it is often difficult to draw a straight line between cause and effect.
Sound annoyance is a subjective matter and cannot be covered by law. In the Netherlands the government set up laws to protect households and other noise-sensitive buildings like hospitals and schools from noise pollution. There are different laws for different sound sources; airplanes, traffic, industry and neighbours. [13]