Post by khatunejannat on Feb 15, 2024 1:35:36 GMT -5
One of the main problems we face living in an urban society like today's is noise pollution. The high human activity in cities generates all kinds of annoying sounds. All these noises not only cause discomfort and cause disputes, but can also cause significant damage to people's health. What is noise pollution? That sound or vibration that alters the normal conditions of a certain environment and that can cause discomfort, risk or even harm to people. Sound is a physical phenomenon produced by a vibration that is transmitted through a medium such as air, in the form of sound waves that we capture with our ears and translate in the brain as the sound sensation. When this sound is unexpected or unwanted we define it as noise. We can catalog different types of noises based on their intensity, cadence, frequencies and duration over time. It can be a continuous noise, a single high intensity impulse, fluctuating or repetitive noises.
How is noise measured? The unit for measuring acoustic pressures (intensity, power and pressure) of sound is the decibel (dB) . To calculate the noise level, the weighted decibel (dBA) is Malawi Email List used, filtering out the high and low frequencies, which are not perceptible to the human ear. Thanks to the sound level meter we can capture and measure this sound pressure at a specific place and time. To check for noise pollution, several measurements must be made at different times, before the noise is generated and while it is ringing. measurement-noise-blogseas What the law says about noise pollution In our country, the Noise Pollution Law 37/2003, of November 17, on noise, in relation to the evaluation of environmental noise, is where it is regulated. At the state level , this law excludes noise from military activities or in the workplace, the rest is regulated by municipal ordinances or current regional legislation, within the parameters .
These regulations establish decibel limits , depending on the time of day and the activity that is causing the noise. For example, domestic noise (neighboring communities), construction, traffic or leisure areas. Effects of noise pollution The WHO has declared that noise has harmful effects on people's health . Depending on the exposure time and the type of sound, physiological and psychological damage can be caused. High noise levels can cause damage to the eardrum, leading to hearing loss . Furthermore, continued exposure to noise can cause psychological problems, causing stress , depressive symptoms, deprivation of rest, which in turn will generate more health problems such as cardiovascular diseases or stomach conditions. The problem of noise pollution adds to the rest of the challenges that modern cities must face to guarantee the health and well-being of their inhabitants. States have understood that the lack of rest undermines people's productivity and, therefore, will affect the economy, which is why not only solid legislation but citizen awareness is important.
How is noise measured? The unit for measuring acoustic pressures (intensity, power and pressure) of sound is the decibel (dB) . To calculate the noise level, the weighted decibel (dBA) is Malawi Email List used, filtering out the high and low frequencies, which are not perceptible to the human ear. Thanks to the sound level meter we can capture and measure this sound pressure at a specific place and time. To check for noise pollution, several measurements must be made at different times, before the noise is generated and while it is ringing. measurement-noise-blogseas What the law says about noise pollution In our country, the Noise Pollution Law 37/2003, of November 17, on noise, in relation to the evaluation of environmental noise, is where it is regulated. At the state level , this law excludes noise from military activities or in the workplace, the rest is regulated by municipal ordinances or current regional legislation, within the parameters .
These regulations establish decibel limits , depending on the time of day and the activity that is causing the noise. For example, domestic noise (neighboring communities), construction, traffic or leisure areas. Effects of noise pollution The WHO has declared that noise has harmful effects on people's health . Depending on the exposure time and the type of sound, physiological and psychological damage can be caused. High noise levels can cause damage to the eardrum, leading to hearing loss . Furthermore, continued exposure to noise can cause psychological problems, causing stress , depressive symptoms, deprivation of rest, which in turn will generate more health problems such as cardiovascular diseases or stomach conditions. The problem of noise pollution adds to the rest of the challenges that modern cities must face to guarantee the health and well-being of their inhabitants. States have understood that the lack of rest undermines people's productivity and, therefore, will affect the economy, which is why not only solid legislation but citizen awareness is important.