Watch out for the harm of fireworks to ear health

Some important festivals, everyone will go to set off fireworks and firecrackers, which is a way to express the festive feeling. Not only the Chinese do this, but also there are entertainment projects such as fireworks parties abroad. But the hidden health risks behind the gorgeous fireworks should not be underestimated.

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Damage to respiratory system and nervous system

Fireworks will produce sulfur dioxide, nitric oxide, nitrogen dioxide and other gases. These toxic and harmful gases are invisible “killers”. When the concentration of harmful substances such as sulfur dioxide and sulfur trioxides in the air exceeds the allowable value, it will stimulate the respiratory tract mucosa of the human body, damage the lung tissue, cause or induce bronchitis, tracheitis, pneumonia, emphysema and other diseases, and can combine with hemoglobin in the human body, resulting in oxygen deficiency of the human body and toxic symptoms.

The nitrogen oxide compounds in the flue gas generated by the burning of fireworks and firecrackers, when exposed to the sun and ultraviolet rays, produce a photochemical reaction, which is a toxic secondary pollutant. It stimulates the mucous membrane of human eyes and nose, thus causing lesions and headaches. When people are in the environment with high nitrogen and oxygen content for a long time, they may die.

During the Spring Festival, when firecrackers are set off in large quantities, the concentration of sulfur dioxide and carbon monoxide in the air is significantly increased, and the concentration of nitrogen dioxide, sulfur dioxide and inhalable particulate matter in the air all exceed the national standards.

Prone to cardiovascular and cerebrovascular diseases

Setting off firecrackers will produce noise pollution. According to the monitoring of firecrackers pollution in Wuhan, Shanghai, Beijing and other 10 major cities during the Spring Festival by the environmental protection department, it is found that the noise in the firecrackers area is as high as 135 decibels, while the noise acceptable to people at night is not more than 45 decibels. High intensity noise is harmful to patients with cerebrovascular and heart diseases.

Impaired hearing

Experts remind that when setting off fireworks and firecrackers in the Spring Festival, we should protect our ears from the injury of “explosive deafness”. Detonation deafness belongs to one of the neural deafness. When the ear is stimulated by noise beyond its endurance, the ear nerve will be injured. The initial symptoms of explosive deafness are hearing loss of high frequency sound, that is, hearing loss of sharp sound. With the passage of time, the disease will become more and more obvious. People who have been injured by firecrackers will have serious hearing loss.

In order to avoid the injury of “explosive deafness”, when setting off firecrackers in the Spring Festival, we should keep away from the firecrackers, or use hands, cotton balls and earplugs to protect our ears.

Blast injury

Every Spring Festival there are cases of burn and explosion caused by fireworks and firecrackers. Most of the injured parts are the eyes and hands of patients, especially the eyes, which are particularly vulnerable, light corneal burns, infections, ulcers, serious foreign body entry, burns, leading to eyeball removal.

Once someone is burned by fireworks and firecrackers, take off the burning clothes quickly, flush cold water as soon as possible to prevent the burn area from expanding, and then cover the wound gently with sterile gauze. If there is no sterile gauze, immediately replace it with clean handkerchief and towel. If the head is burned, pack the cold compress with a clean towel soaked in ice.