"Home Environment and Health" PPT courseware

Description

"Home Environment and Health" PPT courseware

Part One: Situation Import

Can this newly renovated house be moved in immediately? Why?

Some harmful substances in decoration materials are one of the important reasons for the increased incidence of certain diseases. What diseases can it cause?

learning target

1. Evaluate the main sources of pollutants in the home environment.

2. Give examples of the sources of major pollutants in the home environment.

3. Discuss and formulate effective countermeasures to prevent and control indoor environmental pollution.

Exchange activities

1. Report the results of "Score Your Home Environment".

2. What other problems have you found in your family that may affect your family’s health?

3. What problems and hidden dangers currently exist in your home environment?

What measures do you have to improve it?

Home environment and health PPT, part 2 content: Exploration theme one

Main issues in home environment

1. Decoration pollution

2. Indoor air pollution (kitchen, bathroom, smoking)

3. Selection and feeding of plants and pets

…

1. Kitchen pollution

Kitchen pollutants are mainly waste gases generated by burning appliances. The kitchen must be designed to be completely separated from the rest of the living room. Always keep the kitchen door closed. Some families make the kitchen open or integrate it with the dining room, which is unscientific. Due to our country's cooking habits and the fact that stoves rarely use electricity and mainly use gas, kitchen air pollution is serious. If it is not isolated, it will inevitably become an important source of indoor air pollution. Secondly, whether you are using a stove or a gas water heater, you need to turn on the exhaust device.

2. Decoration pollution

(1) Formaldehyde mainly comes from processed boards. Glue is required during board processing to prevent insects and corrosion, and there is a large amount of formaldehyde in the glue.

(2) Radon gas mainly comes from stone. Natural stone has more radon gas, while artificial stone has relatively less radon gas.

(3) Benzene comes from paints and coatings.

(4) Ammonia comes from ammonia, urea and other antifreeze added to cement, as well as additives and whitening agents used in furniture painting.

Home environment and health PPT, Part 3: Thoughts and discussions

How to give yourself a clean home?

1. Raise awareness of indoor air pollution prevention and control.

2. Construction and decoration materials should be carefully selected during interior decoration: water-based paint should be chosen for interior wall paint; paint for doors, windows and furniture should be chosen that has fast film formation and fast solvent evaporation; when choosing granite and marble floor tiles, be sure to use Ask the merchant for the product radioactivity certificate; when choosing decorative boards, be sure to ask the merchant for the product quality certificate, because most decorative boards are density boards, fiberboards, particleboards, etc. that use adhesives and usually release a large amount of formaldehyde. Therefore, decorative boards with lower formaldehyde content should be selected. Decoration should be appropriate, and excessive decoration should not increase indoor pollution sources.

11 plants that are not suitable for indoor display

(1) Orchid: Its aroma can make people overly excited and cause insomnia.

(2) Bauhinia: The pollen it emits can induce asthma or worsen cough symptoms if it comes into contact with people for a long time.

(3) Mimosa: The mimosa base in its body is a highly toxic organic substance. Excessive exposure of the human body will cause hair to fall off.

(4) Rose flower: The rich fragrance it emits can cause some people to experience symptoms such as chest tightness, suffocation and difficulty breathing.

(5) Lily: Its fragrance can also over-excit the central nervous system and cause insomnia.

Home environment and health PPT, Part 4 content: Exploring theme 2

Improve home environment and maintain human health

Five Principles of Living Room Hygiene Standards

1. Sunlight in the room: The sun can kill microorganisms in the indoor air and give people fresh youthful vitality. Therefore, the sun exposure in the room should be no less than 2 hours a day.

2. Living room lighting: refers to the natural light available indoors. The ratio of the effective area of ​​the window to the floor area of ​​the room should be at least 1:15.

3. Indoor clear height: Appropriate clear height gives people a good sense of space, while too low a clear height will make people feel depressed. Experiments have shown that when the indoor clear height is lower than 2.55 meters, the indoor carbon dioxide concentration is high, which will affect the indoor air quality. Therefore, the indoor clear height should be no less than 2.8 meters.

4. Microclimate: room temperature should not be lower than 12 degrees Celsius in winter and higher than 30 degrees Celsius in summer; relative humidity should not be greater than 65%; wind speed should not be less than 0.15 meters/second in summer and not greater than 0.3 meters/second in winter .

5. Air cleanliness: refers to the total number of certain harmful objects, metabolites, floating dust and bacteria in the indoor air that cannot exceed a certain level. These harmful gases mainly include sulfur dioxide, radon, formaldehyde, volatile benzene, etc.

Home environment and health PPT, Part 5: Standard training

1. Which of the following statements is correct ( )

A． Mildew such as damp clothes indoors can also cause indoor pollution

B. Putting more flowers and plants in the bedroom is beneficial to human health

C． Natural marble and other materials without adding chemicals are not harmful to the human body.

D. The original wood is non-toxic and harmless and should be used in large quantities in construction, decoration and furniture.

2. Which of the following does not constitute indoor pollution ( )

A． indoor smoking

B. Smoke from kitchen stove

C． Operation of microwave ovens, televisions, air conditioners, etc.

D. The entry of hot and cold air and ultraviolet rays from the outside

3. Which of the following statements about the living environment is correct ( )

A. Spit in a corner where no one can easily see it

B. Stronger light is better than weak light. You will get used to it over time.

C. It is not advisable to open windows in winter and spring to prevent air containing influenza viruses from entering and causing colds.

D. Opening windows for ventilation is an effective way to improve indoor pollution and reduce diseases.

4. Indoor pollution sources include ( )

①Indoor decoration materials and furniture ②Pets kept indoors

③Certain indoor ornamental plants ④Ultraviolet rays in sunlight

A． ①②③④ B． ①③④

C． ①②③ D． ①②④

Keywords: Beijing Normal University Edition Biology PPT courseware for eighth grade volume 2 free download, home environment and health PPT download, .PPT format;

For more information about "People and the Environment, Home Environment and Health" PPT courseware, please click on the "People and the Environment ppt Home Environment and Health ppt" tab.

"Home Environment and Health" PPT:

"Home Environment and Health" PPT Part One Content: Communication activity report to score your home environment. What other problems have you found in your family that will affect the health of your family? What are the hidden problems and dangers that currently exist in your home environment? Do you have What measures to improve it?...

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Update Time: 2024-11-12

This template belongs to biology courseware Beijing Normal University Edition Eighth Grade Biology Volume 2 industry PPT template

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