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1.5 billion people suffer from hearing loss?

 Last Update: 2021-09-06
 Source: Internet
 Author: User

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[ Focus on Chemical Machinery Equipment Network ] Hearing loss is a more popular sensory disability, which has serious social and economic impacts on individuals, families, society and the country
.
1.
5 billion people worldwide suffer from hearing loss, and at least 430 million of them require rehabilitation
.
It is not difficult to see that noise is harmful and noise monitoring cannot be ignored
.

Chemical machinery and equipment network hotspots pay attention to chemical machinery and equipment

Since the Industrial Revolution in the 1860s, the development and use of various machinery and equipment has promoted the development and prosperity of human society, but at the same time it has also brought serious noise pollution problems
.

Generally, a sound of 80 decibels or more will be judged as noise
.
Noise pollution occurs when noise has a negative impact on people and the environment
.
Noise not only causes hearing damage and interferes with people's normal life, but also induces a variety of fatal diseases and seriously threatens human health.
According to new data, nearly 1.
5 billion people worldwide suffer from hearing loss
.

1.
5 billion people worldwide suffer from hearing loss?

For most people living in cities, noise is already a part of daily life
.
The noise caused by road traffic is almost unavoidable.
In addition, construction sites, factory workshops, and even square dance speakers are also sources of noise
.
With the development of urbanization, the impact of noise on residents' lives is gradually increasing
.

　　Recently, at the 2021 Beijing International Hearing Conference, Bu Xingkuan, director of the World Health Organization’s Collaborative Center for the Prevention of Deafness and Hearing Loss and chief physician of the Department of Otorhinolaryngology, Jiangsu Provincial People’s Hospital, said that at present, many people lack hearing protection, and about 70% of those exposed to noise People almost never or rarely wear hearing protection
.

　　In addition, hearing loss is a more popular sensory disability, which has serious social and economic impacts on individuals, families, society and the country
.
1.
5 billion people worldwide suffer from hearing loss, and at least 430 million of them require rehabilitation
.
It is estimated that by 2050, the population with hearing rehabilitation needs is expected to exceed 700 million.
Therefore, the prevention and control of noise pollution is not only to ensure a comfortable living environment, but also to ensure the health and safety of residents.
Noise monitoring cannot be ignored?

　　Noise pollution is so harmful that monitoring cannot be ignored

　　It is reported that all sounds that interfere with people's rest, study and work and the sounds that people want to hear, that is, unwanted sounds, are collectively referred to as noise
.
When noise has adverse effects on people and the surrounding environment, noise pollution is formed
.

　　In addition, we all know that noise can affect normal work, study and sleep, but we don't know that long-term exposure to noise can also threaten our health
.
As a malignant stimulus, noise acts on the central nervous system for a long time, causing the cerebral cortex to be excited and inhibited, abnormal conditioned reflexes, dizziness, headache, tinnitus, etc.
, and can also cause endocrine disorders, nervous system dysfunction, and mental disorders And other diseases
.

　　It is not difficult to see that noise pollution is harmful and monitoring cannot be ignored.
In order to prevent noise pollution and create a quiet acoustic environment, the Ministry of Environmental Protection issued and implemented the "Acoustic Environmental Quality Standards" and "Environmental Noise Emission Standards for Industrial Enterprises" in 2008.
”And the “Environmental Noise Emission Standard for Social Life” to protect people’s hearing health.
In the appeal of the environmental noise measurement standard, environmental noise monitoring equipment is mentioned, and the market for related monitoring instruments can be expected to develop
.

Monitoring instrument

　　Broad prospects for noise monitoring instruments

　　In order to improve the level of noise monitoring, environmental protection departments at all levels in China are organizing scientific research projects that have been undertaken to prevent and control environmental noise pollution, including research and application on the division and adjustment of acoustic environmental function zones, environmental noise pollution control planning and countermeasures, noise map research, and environmental Research and development of noise management system and other aspects
.

　　The instruments used for noise monitoring are mainly integrated average sound level meters and automatic environmental noise monitors
.
The sound level meter is a handheld instrument with a microphone (microphone)
.
When sound propagates heavily in the air, sound waves will cause changes in air pressure.
The microphone can detect this change and convert it into an electrical signal to determine the value of the noise level based on the electrical signal
.

　　In addition, the automatic environmental noise monitor uses a sound pressure sensor instead of a microphone as a device for detecting sound pressure, and has the functions of automatic data collection, storage, and processing
.
Depending on the monitored area, noise monitoring methods can be divided into mesh-point method, the link distribution method, continuous monitoring staging point method or the like
.

sensor

　　In recent years, China has formulated a series of policies to assist noise environmental monitoring.
With the country's emphasis on acoustic environmental monitoring, the market for noise monitoring instruments may usher in greater demand
.

　　Original title: 1.
5 billion people suffer from hearing loss? Noise monitoring cannot be ignored

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