How to avoid noise in daily life What noise is there in daily life How to avoid it

<>1.Check the environment. The younger your baby is, the smaller the noise range it can tolerate.

Carefully check the environment to see if the noise is louder than your baby's tolerance. Noise prevention at home. Give the baby a separate room to rest, and adults should not play loudly for a long time at home.

Those who have a pet dog at home should be trained not to bark at will. If the baby is affected, it can be placed in temporary foster care. In order to give the baby early education, some mothers will put a lot of ** for the baby, but remember to choose a gentle ** and control the time of **, generally no more than 20 minutes at a time.

2.Control on the sound source. To reduce noise from sound sources, the industrial and transportation industries can choose low-noise production equipment and improve production processes, or change the way noise sources move, such as damping and vibration isolation measures to reduce vibrations in solid sounders.

Control during noise propagation. In terms of sound transmission methods, reduce noise (in the process of propagation) to control the propagation of noise, change the propagation mode of noise already emitted by sound sources, such as taking measures such as sound absorption, sound insulation, sound barriers, vibration isolation, and planting more trees, and reasonably plan the layout of cities and buildings.

3.Attenuates noise to the human ear. When noise protection cannot be taken for the recipient or the recipient organ in terms of the sound source and transmission route, or the acoustic measures still do not achieve the expected effect, protective measures should be taken for the recipient or the recipient organ, such as earplugs, earmuffs or helmets and other ear protectors of workers who are exposed to long-term occupational noise.

It is also relatively easy to use thick curtains to consume some of the sound energy. It is known that the sound insulation capacity of soundproof curtains is about 20 decibels. Using soundproof curtains not only reduces some noise pollution, but also controls the light.

We can use carpets, fabrics, and even sound-absorbing cotton to reduce the impact of vibration and friction on the room. Adding rubber pads to the foot of the bed can also reduce vibration. Double glazing can be installed for sound insulation.

The double-glazed glass has a sound insulation effect of about 40%, and the air layer in the middle has a certain shock-absorbing effect, which can weaken the vibration transmitted to the inner glass, so as to achieve the sound insulation effect of the double-glazed glass, thereby greatly reducing the noise transmitted to the room.

Choose a confined space, the sealing of the glass should be good, the wall can choose soundproof materials, if you can also add soundproof cotton in the later stage, the tables, chairs and benches should be handled gently to avoid dragging.

1.Reduce car horns. 2.Increase the greenery of the city and plant greenery on both sides of the road. 3.Avoid loud noises in public places and avoid turning up electronic devices to maximum sound.

Try not to go to places with high noise, let yourself stay in a quiet place, you can also wear earplugs, you can install noise prevention equipment, you can avoid noise.

You can wear headphones, earbuds, add some soundproof equipment, change to a soundproof glass, and control the noise source.

Summary. There are generally four types of noise:

Traffic noise: Cars, trains, airplanes, ships and other means of transportation are the source of mobility noise, the most prominent impact on the environment, with the more and more developed urban transportation, the increase in vehicle ownership, traffic noise pollution is becoming more and more serious.

Industrial noise: The loud noise emitted by various machinery and equipment in the factory not only directly brings harm to production, but also has a great impact on the surrounding residents. Industry is the main culprit of occupational deafness.

What noises are there in everyday life? How to avoid it?

Noise is generally divided into four types: traffic noise: cars, trains, airplanes, ships and other means of transportation are the source of mobile noise, the most prominent impact on the environment, with the increasing development of urban traffic, the increase in vehicle ownership, traffic noise pollution is becoming more and more serious.

Industrial noise: The loud noise emitted by various machinery and equipment in the factory not only directly brings harm to production, but also has a great impact on the surrounding residents. Industry is the main culprit of occupational deafness.

Construction noise: Mixers, pile drivers, bulldozers, drilling rigs, pneumatic tools, etc. used in construction produce huge noise. Living Noise:

The noise of crowds and household noise in public entertainment venues, shopping malls, and markets have become noise in daily life. Precautionary measures: control noise sources:

Taking technical measures according to the specific situation to control or eliminate the noise source is a way to fundamentally solve the noise hazard. Control the propagation of noise: In the propagation of noise, the application of sound absorption and noise reduction technology can obtain better results.

Sound absorption is an important measure to reduce noise intensity.

Method: A soundproof wall is built at the sound source to prevent the noise from spreading directly outward.

Strengthen greenery and plant trees on both sides of busy highways to form barriers.

Soundproofing was added.

Lubricate the machine to prevent noise and protect the machine.

Noise Detail: A sound that changes in pitch and intensity chaotically and sounds dissonant. It is caused by the irregular vibration of the sound body (different from [music]), and from the point of view of physics: noise is the sound produced when the sound emitter makes irregular vibrations.

Extended content: Studies have shown that when the noise is 90 decibels, the sensitivity of rods in people's retina to distinguish light brightness begins to decrease, and the reaction time to recognize low light is prolonged; At 95 decibels, the pupil dilated; At 115 decibels, the eye's adaptability to light brightness decreases207.

Noise pollution: According to the mechanical characteristics of the sound source, noise pollution can be divided into: noise caused by gas disturbance, noise caused by solid vibration, noise caused by liquid impact and electromagnetic noise generated by electromagnetic action.

According to the frequency of the sound, the noise can be divided into: < 400Hz low-frequency noise, 1000Hz medium-frequency noise and 1000Hz high-frequency noise.

1.At school, students should not make loud noises.

2.Use civilized language. 3.Don't make noise. 4.Be a civilized person.

Whether it's indoor or outdoor, if it's indoors, you can put more green plants indoors, they have a certain effect of absorbing noise, and they can also purify the indoor air.

There is no ready-made **, you have to collect information!

1. What are the hazards of noise?

The harm of noise to sleep: sudden noise at 40 decibels, can wake up 10 people, and when it reaches 60 decibels, it can wake up 70 people.

Noise damage to hearing: Noise can cause tinnitus, deafness and hearing damage, and when it exceeds 55 decibels, it feels noisy. Long-term exposure to noise above 85 decibels is associated with a prevalence of 21 after 40 years.

What is the physiological harm of noise? Noise can cause nervous tension, irregular heartbeat, increased blood pressure, and high noise environment, which will make some women's sexual dysfunction, menstrual disorders, and higher miscarriage rates in pregnant women.

Noise harm to children: Noise can hinder children's intellectual development, and children in noisy environments have lower mental development than children in quiet environments20.

2. Living next to an elevated road (road), why is there noise when the doors and windows are closed?

Because the main reason why doors and windows are not soundproofed is the tightness of the window frame and the sash itself, and secondly, the thickness of the glass, so you must transform your doors and windows into soundproof doors and windows.

3. How to insulate doors and windows? What are the other benefits of sound insulation?

There are five steps to soundproofing doors and windows:

a. Seal the slideway; b. Sealing the glide path; c. Install high-quality sealing strips; d. Installing seals;

e. Seal each ventilation point. Single-layer glass plus sound insulation film, insulating glass plus sound insulation sealing strip.

Benefits after noise elimination:

1. Power saving: users with air conditioning can save about 10% of electricity per month;

2. Dustproof: The soil cannot be seen on the window sill after sealing.

3. Insulation: In winter, under the same conditions, the indoor temperature difference before and after sealing is 3-6 degrees.

4. Noise reduction: For users living in downtown areas or on the side of elevated roads, the noise can be reduced by 3-5 decibels (comparison before and after the renovation of the same test point indoors), and a noise reduction of 3 decibels means that the volume felt by the human ear has been reduced by half.

This network night tour, collect some information!

Coach: Luo Qiong.

Design Ideas Let children understand that noise is also a kind of pollution, and we can start by reducing noise to protect the environment. Cultivate children's hands-on ability, gain knowledge and find happiness in activities. Understand that every child can protect the environment.

Objective 1Generate your child's interest in finding ways to control noise.

2.Develop children's ability to use their hands and brains.

3.Through exploration, guide children to find ways to reduce the noise they encounter in life.

Event Preparation 1Young children already have life experience in music and noise.

2.chairs, tables, cups, bowls, iron buckets, double-sided tape, transparent glue, sponges, cloth strips, cotton, small carpets, waste newspapers and various soft and hard materials; Writing paper and pen.

Activity process 1. Children listen to the noise and introduce the activity.

1.Ask the teaching assistant to hide under the blackboard and use some tools to make noise so that the children can listen attentively.

Prepare some noisy noises, piano songs, and cheerful nursery rhymes, etc., so that children can feel the difference between noise and music.

2.Question: What did you hear?

What are these sounds coming from? How do you feel after listening to these sounds?

What can you do to reduce this noise?

2. Guide children to collide with two items.

1.The teacher has prepared a lot of things today, and I would like to invite the children to try them out, which things make a loud noise when they collide? What things collide with each other and make a small sound? Please record your findings.

2.Group discussion and talk about their own operational activities.

What items make a low noise when they collide with anything?

What items make loud noises when they collide with other objects?

Which do you like to hear? Why?

3. Guide the children to discuss ways to reduce noise in small groups and communicate with each other.

1.Let's use our brains to think about what can be done to reduce some of the noise that is common in our lives.

2.Inspire children to choose their own materials, do hands-on operations, and solve problems.

Activity Extension Let the children find out what noise is in our classroom, what can be solved, and ask the children to do it themselves and express their ideas in action.