www.黄视频在线免费观看,天天干天天色视频,久久99热这里只频精品66,国内偷拍高清精品免费视频,99久久精品免费看国产免费,色欲αv无码视频,国产免费久久精品99re丫y

Search

News

How many decibels does the noise exceed? Wear protective earmuffs
Time: 2021-01-11
The use of ear protection products is an important measure to ensure the health of the ears of employees, and it is also the basis for ensuring the safety of production and business units.
 
Wear protective earmuffs when the noise exceeds 80 decibels. Statistics show that long-term work in a noise environment above 90 decibels significantly increases the incidence of deafness. When the noise is 80-85 decibels, they are often agitated and tired, and headaches are mostly in the temporal and frontal area; at 95-120 decibels, workers often have dull head pain, accompanied by irritability, sleep disorders, and dizziness. , Memory loss; when the noise is as strong as 140-150 decibels, it will not only cause ear disease, but also fear and increased nervous system tension. As long as you work in this environment for a long time, you must wear ear protectors.
 
Harm of noise environment:
 
1. Long-term exposure of pregnant women in a noise environment exceeding 50 decibels will cause endocrine gland dysfunction, mental tension and endocrine system disorders. In severe cases, it will increase blood pressure, fetal hypoxia and ischemia, cause fetal malformations and even abortion. The high-decibel noise can damage the hearing organs of the fetus, causing some areas to be affected. Affect the development of the brain, leading to low intelligence in children.
 
2. The malignant stimulus of noise seriously affects our sleep quality, and can cause dizziness, headache, insomnia, dreaminess, memory loss, inattention and other neurasthenia symptoms and nausea, vomiting, stomach pain, abdominal distension, sluggish appetite, etc. Digestive symptoms. Nutritionists have found that noise can also increase the consumption of essential nutrients such as vitamins, trace elements nitric acid, glutamic acid, and lysine acid in the human body, and affect health; noise can increase the secretion of adrenal glands and speed up the heartbeat. Increased blood pressure can easily lead to heart attacks. At the same time, noise can reduce the secretion of saliva and gastric juice, and reduce gastric acid, resulting in gastric ulcer and duodenal ulcer.
 
3. It affects the human nervous system and makes people irritable and irritable.
 
4. Affect sleep and cause fatigue.
Phone
Wechat
Contact us
Tel: +86-577 - 66605255
       +86-577 - 65399555
Fax: +86-577 - 66605252
E-mail: onlyele@onlyele.com
aolian@cnaolian.com
Wab: www.lhuawu.com