"Home Environment and Health" PPT

Description

"Home Environment and Health" PPT

Part One: Exchange Activities

Report "Rate Your Home Environment" Results

What other problems have you found in your family that could affect your family's health?

What problems and hidden dangers currently exist in your home environment? What measures do you have to improve it?

main problem

Decoration pollution

Indoor air pollution (kitchen, bathroom, smoking)

Selection and feeding of plants and pets

Home Environment and Health PPT, Part 2: Five Principles of Living Room Hygiene Standards

The sanitary conditions of the room are closely related to human health. Therefore, modern rooms must pay attention to five sanitary 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 show 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: The room temperature should not be lower than 12 degrees Celsius in winter and not higher than 30 degrees Celsius in summer; the relative humidity should not be greater than 65%; the wind speed should not be less than 0.15 meters/second in summer and should not be greater than 0.15 meters/second in winter. 3 meters/second.

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 carbon dioxide, sulfur dioxide, radon, formaldehyde, volatile benzene, etc.

Decoration pollution

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.

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

Benzene comes from paints and coatings.

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

The dangers of benzene

Inhaling benzene above 4000ppm for a short period of time will not only irritate the mucous membrane and lungs, but also have a depressive effect on the central nervous system. It will also be accompanied by headache, vomiting, unsteady gait, coma, convulsions and arrhythmia. Inhaling benzene above 14,000 ppm will cause immediate death.

Home environment and health PPT, part 3: 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.

3. When purchasing furniture, you should try to choose solid wood furniture, reduce the use of density boards and fiberboards, and reduce the amount of formaldehyde released.

4. Don’t rush into the newly renovated room. You should open the windows for ventilation for a period of time. Since the release of formaldehyde in construction, decorative materials, and furniture is a slow process, you should open the windows every day after moving in to ensure that there is air in the room. Sufficient fresh air volume.

5. Do not overheat the oil when cooking; turn on the range hood or open the window for ventilation when cooking to reduce pollution caused by fuel burning and cooking fumes in the kitchen.

6. Try not to smoke indoors to reduce indoor air pollution caused by cigarette smoke.

7. Bedding, blankets and carpets should be frequently dried in the sun to avoid biological contamination caused by the breeding of dust mites.

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 courseware:

"Home Environment and Health" PPT Courseware Part One: Situation Introduction 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...

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Update Time: 2024-10-02

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