What are the harms of noise?

The hazards of noise are significant; in some positions at our company, the noise level exceeds 100. Ah, noise is hard to deal with.

In positions such as those in our workshop’s machinery areas, the noise level in the operators’ working environment is extremely high. Such objective conditions cannot really be changed; all we can do is to take extra precautions to protect ourselves. For example: be sure to use ear protection, and try to minimize the time spent in noisy environments!

Noise has varying degrees of harm on different people. 1: The effects of noise on pregnant women and fetuses – When pregnant women are exposed to noise levels above 50 decibels for an extended period, it can disrupt the function of their endocrine glands, leading to stress and imbalances in the endocrine system. In severe cases, it can cause elevated blood pressure, fetal hypoxia and ischemia, lead to fetal malformations, and even miscarriage. High-decibel noise can damage the fetal auditory organs, affecting certain areas. It affects brain development, leading to intellectual disability in children. 2: The harms of noise to infants and young children. Infants and young children are often exposed to noise, which can cause symptoms such as listlessness, irritability, indigestion, and loss of appetite. It can also disrupt endocrine functions, thereby hindering their physical and mental health as well as intellectual development. Noise can also affect vision and cause eye diseases. Infants and young children have delicate eye organs that require even more protection. This is one of the reasons why more and more infants and young children need to wear glasses these days. 3: The harm of noise to students. After a busy day of studying, students need a quiet environment for studying and resting at night. If one is exposed to a noise level of over 40 decibels for an extended period of time. It is then impossible to concentrate, which hinders the improvement of self-study skills. Prolonged noise pollution can also severely affect students’ academic performance and physical health. This leads to a decline in grades, and in severe cases, it can cause an aversion to studying. 4: The harms of noise to adults. The adverse effects of noise severely impact the quality of our sleep, and can cause nervous system symptoms such as dizziness, headaches, insomnia, frequent dreams, memory loss, and difficulty concentrating, as well as digestive tract symptoms such as nausea, vomiting, stomach pain, abdominal distension, and loss of appetite. Nutritionists have found that noise can also increase the consumption of essential nutrients in the body, such as vitamins, trace elements, amino acids, glutamic acid, lysine, etc., thereby affecting health ； Noise causes an increase in adrenaline secretion, leading to a faster heartbeat and higher blood pressure, which can easily trigger heart attacks ； At the same time, noise can reduce the secretion of saliva and gastric juice, lowering stomach acid levels, which may lead to gastric ulcers and duodenal ulcers. Noise hazards: It is generally believed that 40 decibels represents the normal level of environmental noise for humans; levels above this can cause various health problems, including disruptions to sleep, interference with work and conversations, hearing damage, and even diseases related to the vascular and nervous systems.

Noise, also known as sound pollution, generally refers to inappropriate or uncomfortable auditory stimuli. It is a complex sound composed of numerous frequencies and characterized by aperiodic vibrations. In short, noise is non-periodic sound vibration. Its sound wave pattern is irregular, giving it a harsh sound. Any sound that hinders people from studying, working, and resting and causes discomfort is called noise. Its unit of measurement is decibels. Zero decibels is the lowest intensity of audible sound. The main physical and psychological harms caused by noise are: 1. Damage to hearing. 2. Harmful to the human cardiovascular system, leading to an increase in hypertension rates. 3. It affects the nervous system, making people impatient and irritable. 4. It affects sleep and causes fatigue. To prevent noise, acousticians have summarized and studied the hazards and standards related to various types of noise existing both domestically and internationally, and proposed three recommendations: (1) To protect people’s hearing and health, the allowable level of noise is between 75 and 90 decibels. (2) Ensure smooth conversation and communication; the allowable level of environmental noise is 45–60 decibels. (3) It is recommended that the sleep noise level be between 35 and 50 decibels. Contents and preventive measures for noise control: (1) Reduce noise from sound sources; in the industrial and transportation sectors, low-noise production equipment can be used, production processes can be improved, or the way in which sound sources move can be altered (for example, by using damping and vibration isolation measures to reduce the vibration of solid sound-emitting objects). (2) Reduce noise in the sound transmission path, control the spread of noise, and alter the path taken by the noise already emitted by the sound source; this can be achieved through measures such as sound absorption, sound insulation, sound barriers, and vibration isolation, as well as through rational planning of urban and architectural layouts. (3) Noise protection for the recipients or the organs affected by noise: When it is not possible to take measures at the sound source or along the path of sound transmission, or when the acoustic measures taken still do not achieve the desired results, it becomes necessary to implement protective measures for the recipients or the affected organs. For example, workers who are exposed to occupational noise on a long-term basis can use earplugs, earmuffs, or helmets as hearing protection devices.

In the engineering design of such devices, general standards require that the noise level be below 85 decibels. However, in actual production operations, noise causes significant harm to people; it is necessary to take precautions by wearing protective earplugs at all times.

l. Affects sleep and rest. Noise can affect the quality of sleep; when sleep is disrupted and it becomes difficult to fall asleep, symptoms such as rapid breathing and nervous excitement occur. Over time, this can lead to insomnia, tinnitus, frequent dreams, fatigue and weakness, as well as memory decline. 2. It damages people’s hearing. Noise can cause temporary and permanent hearing damage in humans. Generally speaking, noise below 85 decibels is not likely to harm hearing, while at levels above 100 decibels, nearly half of people will go deaf. 3. Cause other diseases in the human body. Some experiments have shown that noise has an impact on both the human nervous system and cardiovascular system; long-term noise pollution can cause headaches, panic, nervousness, and even neurosis. Noise can also cause an accelerated heartbeat, blood vessel spasms, high blood pressure, coronary heart disease, and other conditions. Extremely high levels of noise (such as 170 decibels) can also be fatal. 4. Interfere with people’s normal work and study*. When the noise level is below 60 decibels, it has almost no effect on human conversation and thinking. When noise is above 90 decibels, conversation and thinking become almost impossible, which severely affects people’s work and study*

Some companies simply do not provide employees with ear protection