PYPX - Air Pollution Research by

Stephan

2024-03-07 08:26:30 UTC

Definition of air pollution:

The air in our atmosphere has a roughly stable chemical composition consisting of nitrogen, oxygen, argon, carbon dioxide, and trace amounts of other gases. Any change in the air composition due to the addition of unwanted gases such as sulfur dioxide, carbon monoxide, and nitrogen oxides, chemicals, particulate matter, and biological molecules is called air pollution.

Causes of air pollution:

Air pollution can happen from both human-made (anthropogenic) and natural sources. Some of the significant sources of air pollution are given below:

Burning of fossil fuels such as coal, oil, and natural gas
Exhaust from automobiles and industries
Indiscriminate cutting of trees (deforestation)
Wildfires resulting from burning stubble and farm residues
Release of methane from microbial decay
Excessive discharge of greenhouse gases like carbon dioxide and nitrous oxide
Chlorofluorocarbons (CFCs) released from aerosols sprays, refrigerants, and air conditioners
Release volcanic ash and gases

Source: Types of Pollution: Sources, Causes, Effects, and Prevention (sciencefacts.net )

Stephan

2024-03-07 08:52:16 UTC

Description of air pollution:

Causes of air pollution:

Most air pollution is created by people, taking the form of emissions from factories, cars, planes, or aerosol cans. Second-hand cigarette smoke is also considered air pollution. These man-made sources of pollution are called anthropogenic sources.
Some types of air pollution, such as smoke from wildfires or ash from volcanoes, occur naturally. These are called natural sources.

Air pollution is most common in large cities where emissions from many different sources are concentrated. Sometimes, mountains or tall buildings prevent air pollution from spreading out. This air pollution often appears as a cloud making the air murky. It is called smog. The word "smog" comes from combining the words "smoke" and "fog."

Source: Air Pollution (nationalgeographic.org )

Yousif AlAjroush

2024-03-09 10:35:57 UTC

Sources of Air Pollution

Pollution enters the Earth's atmosphere in many different ways. Most air pollution is created by people, taking the form of emissions from factories, cars, planes, or aerosol cans. Second-hand cigarette smoke is also considered air pollution. These man-made sources of pollution are called anthropogenic ash from volcanoes, occur naturally. These are called natural sources.

Air pollution is most common in largfrom many different sources are concentrated. Sometime mountains or tall buildings prevent air pollution from spreading out. This air pollution often appears as a cloud making the air murky. It is called smog. The word "smog" comes from combining the words "smoke" and "for Large cities in poor and developing nations tend to have more air pollution than cities in developed nations. According to the World Health Organization (WHO), some of the worlds most polluted cities are Karachi, Pakistan; New Delhi, India; Beijing, China; Lima, Peru; and Cairo, Egypt. However, many developed nations also have air pollution problems. Los Angeles, California, is nicknamed Smog City.

Indoor Air Pollution

Air pollution is usually thought of as smoke from large factories or exhaust from vehicles. But there are many types of indoor air pollution as well.

Heating a house by burning substances such as kerosene, wood, and coal can contaminate the air inside the house. Ash and smoke make breathing difficult, and they can stick to walls, food, and clothing.

Naturally-occurring radon gas, a cancer-causing material, can also build up in homes. Radon is released through the surface of the Earth. Inexpensive systems installed by professionals can reduce radon levels.

https://education.nationalgeographic.org/resource/air-pollution/#

Mohammad

seegma — 2024-03-12 10:24:12 UTC

Air pollution consists of chemicals or particles in the air that can harm the health of humans, animals, and plants. It also damages buildings. Pollutants in the air take many forms. They can be gases, solid particles, or liquid droplets.

Sources of Air Pollution

Pollution enters the Earth's atmosphere in many different ways. Most air pollution is created by people, taking the form of emissions from factories, cars, planes, or aerosol cans. Second-hand cigarette smoke is also considered air pollution. These man-made sources of pollution are called anthropogenic sources.

Some types of air pollution, such as smoke from wildfires or ash from volcanoes, occur naturally. These are called natural sources.

Air pollution is most common in large cities where emissions from many different sources are concentrated. Sometimes, mountains or tall buildings prevent air pollution from spreading out. This air pollution often appears as a cloud making the air murky. It is called smog. The word "smog" comes from combining the words "smoke" and "fog."

Large cities in poor and developing nations tend to have more air pollution than cities in developed nations. According to the World Health Organization (WHO), some of the worlds most polluted cities are Karachi, Pakistan; New Delhi, India; Beijing, China; Lima, Peru; and Cairo, Egypt. However, many developed nations also have air pollution problems. Los Angeles, California, is nicknamed Smog City.

Indoor Air Pollution

Air pollution is usually thought of as smoke from large factories or exhaust from vehicles. But there are many types of indoor air pollution as well.

Heating a house by burning substances such as kerosene, wood, and coal can contaminate the air inside the house. Ash and smoke make breathing difficult, and they can stick to walls, food, and clothing.

Naturally-occurring radon gas, a cancer-causing material, can also build up in homes. Radon is released through the surface of the Earth. Inexpensive systems installed by professionals can reduce radon levels.

Some construction materials, including insulation, are also dangerous to people's health. In addition, ventilation, or air movement, in homes and rooms can lead to the spread of toxic mold. A single colony of mold may exist in a damp, cool place in a house, such as between walls. The mold's spores enter the air and spread throughout the house. People can become sick from breathing in the spores.

Effects On Humans

People experience a wide range of health effects from being exposed to air pollution. Effects can be broken down into short-term effects and long-term effects.

Short-term effects, which are temporary, include illnesses such as pneumonia or bronchitis. They also include discomfort such as irritation to the nose, throat, eyes, or skin. Air pollution can also cause headaches, dizziness, and nausea. Bad smells made by factories, garbage, or sewer systems are considered air pollution, too. These odors are less serious but still unpleasant.

Long-term effects of air pollution can last for years or for an entire lifetime. They can even lead to a person's death. Long-term health effects from air pollution include heart disease, lung cancer, and respiratory diseases such as emphysema. Air pollution can also cause long-term damage to people's nerves, brain, kidneys, liver, and other organs. Some scientists suspect air pollutants cause birth defects. Nearly 2.5 million people die worldwide each year from the effects of outdoor or indoor air pollution.

People react differently to different types of air pollution. Young children and older adults, whose immune systems tend to be weaker, are often more sensitive to pollution. Conditions such as asthma, heart disease, and lung disease can be made worse by exposure to air pollution. The length of exposure and amount and type of pollutants are also factors.

Effects On The Environment

Like people, animals, and plants, entire ecosystems can suffer effects from air pollution. Haze, like smog, is a visible type of air pollution that obscures shapes and colors. Hazy air pollution can even muffle sounds.

Air pollution particles eventually fall back to Earth. Air pollution can directly contaminate the surface of bodies of water and soil. This can kill crops or reduce their yield. It can kill young trees and other plants.

Sulfur dioxide and nitrogen oxide particles in the air, can create acid rain when they mix with water and oxygen in the atmosphere. These air pollutants come mostly from coal-fired power plants and motor vehicles. When acid rain falls to Earth, it damages plants by changing soil composition; degrades water quality in rivers, lakes and streams; damages crops; and can cause buildings and monuments to decay.

Like humans, animals can suffer health effects from exposure to air pollution. Birth defects, diseases, and lower reproductive rates have all been attributed to air pollution. source;

Rami

seegma — 2024-03-12 10:29:29 UTC

What is Air Pollution?

Air pollution refers to any physical, chemical or biological change in the air. It is the contamination of air by harmful gases, dust and smoke which affects plants, animals and humans drastically.

There is a certain percentage of gases present in the atmosphere. An increase or decrease in the composition of these gases is harmful to survival. This imbalance in the gaseous composition has resulted in an increase in earth’s temperature, which is known as global warming.

Types of Air Pollutants

There are two types of air pollutants:

Primary Pollutants

The pollutants that directly cause air pollution are known as primary pollutants. Sulphur-dioxide emitted from factories is a primary pollutant.

Secondary Pollutants

The pollutants formed by the intermingling and reaction of primary pollutants are known as secondary pollutants. Smog, formed by the intermingling of smoke and fog, is a secondary pollutant.

Causes of Air Pollution

Following are the important causes of air pollution:

Burning of Fossil Fuels

The combustion of fossil fuels emits a large amount of sulphur dioxide. Carbon monoxide released by incomplete combustion of fossil fuels also results in air pollution.

Automobiles

The gases emitted from vehicles such as jeeps, trucks, cars, buses, etc. pollute the environment. These are the major sources of greenhouse gases and also result in diseases among individuals.

Agricultural Activities

Ammonia is one of the most hazardous gases emitted during agricultural activities. The insecticides, pesticides and fertilisers emit harmful chemicals in the atmosphere and contaminate it.

Factories and Industries

Factories and industries are the main source of carbon monoxide, organic compounds, hydrocarbons and chemicals. These are released into the air, degrading its quality.

Mining Activities

In the mining process, the minerals below the earth are extracted using large pieces of equipment. The dust and chemicals released during the process not only pollute the air, but also deteriorate the health of the workers and people living in the nearby areas.

Domestic Sources

The household cleaning products and paints contain toxic chemicals that are released in the air. The smell from the newly painted walls is the smell of the chemicals present in the paints. It not only pollutes the air but also affects breathing.

source: Air Pollution - Definition, Causes, Effects And Control (byjus.com )

Kenan Zeibak

2024-03-12 10:33:23 UTC

Effects of Air Pollution

Air pollution affects all things. It is harmful to our health, and it impacts the environment by reducing visibility and blocking sunlight, causing acid rain, and harming forests, wildlife, and agriculture. Greenhouse gas pollution, the cause of climate change, affects the entire planet.

Harming Human HealthAccording to the (link is external)World Health Organization, an estimated seven million people die each year from air pollution. More than 4,000 people died in just a few months due to a severe smog event that occurred in London in 1952.

Harming Animals and Plants

Brown patches on these potato leaves are evidence of moderate ozone damage.

Danica Lombardozzi/NCAR

Wildlife can experience many of the same negative health effects of air pollution that humans do.

Causing Acid Rain

Acid rain damages buildings.
UCAR/NAME

Burning fossil fuels releases sulfur and nitrogen oxides into the atmosphere. Acid rain forms when sulfur dioxide and nitrogen dioxide mix with water droplets in the atmosphere to make sulfuric acid and nitric acid.

Adding Too Much Nitrogen to the Land

Gaseous ammonia (NH3) from agriculture and nitrogen dioxide (NO2) from car, truck, and airplane emissions increase the amount of nitrogen in soils.

source:Effects of Air Pollution | Center for Science Education (ucar.edu )

Adam

2024-03-12 10:58:23 UTC

Air pollution affects people in different ways. Older people, children and those with pre-existing health conditions are more sensitive to the health impacts of air pollution. In addition, the most deprived people in society often have poorer health and less access to high-quality medical care, increasing their vulnerability.

There is strong evidence linking lower socio-economic status to increased exposure to air pollution. In large parts of Europe, poorer people are more likely to live next to busy roads or industrial areas and thus, face higher levels of exposure to air pollution. At the same time, exposure patterns vary across European cities. In some cities, wealthier people live in central, polluted areas, while in other European cities central areas are inhabited by poorer communities. Source:

Laith

2024-03-12 11:43:14 UTC

The federal government has the constitutional authority to control air pollution, primarily through its powers to protect public health and safety and to regulate transboundary effects.

Polluted air is creating a health emergency

There is no doubt today that air pollution is a global public health emergency. It threatens everyone from unborn babies to children walking to school, to women cooking over open fires.

On the street and inside the house, the sources of air pollution can be very different, yet their effects are equally deadly: asthma, other respiratory illnesses and heart disease are among the adverse health effects known to be caused by polluted air.

Children are most at risk

Globally, 93 per cent of all children breathe air that contains higher concentrations of pollutants than the World Health Organization (WHO) considers safe to human health. As a result,600,000 children die prematurely each year because of air pollution. As if that were not enough, exposure to dirty air also harms brain development, leading to cognitive and motor impairments, while at the same time putting children at greater risk for chronic disease later in life.

Abdulrahman

2024-03-12 12:42:13 UTC

Sources of Air Pollution

Pollution enters the Earth's atmosphere in many different ways. Most air pollution is created by people, taking the form of emissions from factories, cars, planes, or aerosol cans. Second-hand cigarette smoke is also considered air pollution. These man-made sources of pollution are called anthropogenic sources.

Some types of air pollution, such as smoke from wildfires or ash from volcanoes, occur naturally. These are called natural sources.

Air pollution is most common in large cities where emissions from many different sources are concentrated. Sometimes, mountains or tall buildings prevent air pollution from spreading out. This air pollution often appears as a cloud making the air murky. It is called smog. The word "smog" comes from combining the words "smoke" and "fog."

Large cities in poor and developing nations tend to have more air pollution than cities in developed nations. According to the World Health Organization (WHO), some of the worlds most polluted cities are Karachi, Pakistan; New Delhi, India; Beijing, China; Lima, Peru; and Cairo, Egypt. However, many developed nations also have air pollution problems. Los Angeles, California, is nicknamed Smog City.

Indoor Air Pollution

Air pollution is usually thought of as smoke from large factories or exhaust from vehicles. But there are many types of indoor air pollution as well.

Heating a house by burning substances such as kerosene, wood, and coal can contaminate the air inside the house. Ash and smoke make breathing difficult, and they can stick to walls, food, and clothing.

Naturally-occurring radon gas, a cancer-causing material, can also build up in homes. Radon is released through the surface of the Earth. Inexpensive systems installed by professionals can reduce radon levels.

Some construction materials, including insulation, are also dangerous to people's health. In addition, ventilation, or air movement, in homes and rooms can lead to the spread of toxic mold. A single colony of mold may exist in a damp, cool place in a house, such as between walls. The mold's spores enter the air and spread throughout the house. People can become sick from breathing in the spores.

Effects On Humans

People experience a wide range of health effects from being exposed to air pollution. Effects can be broken down into short-term effects and long-term effects.

Short-term effects, which are temporary, include illnesses such as pneumonia or bronchitis. They also include discomfort such as irritation to the nose, throat, eyes, or skin. Air pollution can also cause headaches, dizziness, and nausea. Bad smells made by factories, garbage, or sewer systems are considered air pollution, too. These odors are less serious but still unpleasant.

Long-term effects of air pollution can last for years or for an entire lifetime. They can even lead to a person's death. Long-term health effects from air pollution include heart disease, lung cancer, and respiratory diseases such as emphysema. Air pollution can also cause long-term damage to people's nerves, brain, kidneys, liver, and other organs. Some scientists suspect air pollutants cause birth defects. Nearly 2.5 million people die worldwide each year from the effects of outdoor or indoor air pollution.

People react differently to different types of air pollution. Young children and older adults, whose immune systems tend to be weaker, are often more sensitive to pollution. Conditions such as asthma, heart disease, and lung disease can be made worse by exposure to air pollution. The length of exposure and amount and type of pollutants are also factors.

Effects On The Environment

Like people, animals, and plants, entire ecosystems can suffer effects from air pollution. Haze, like smog, is a visible type of air pollution that obscures shapes and colors. Hazy air pollution can even muffle sounds.

Air pollution particles eventually fall back to Earth. Air pollution can directly contaminate the surface of bodies of water and soil. This can kill crops or reduce their yield. It can kill young trees and other plants.

Sulfur dioxide and nitrogen oxide particles in the air, can create acid rain when they mix with water and oxygen in the atmosphere. These air pollutants come mostly from coal-fired power plants and motor vehicles. When acid rain falls to Earth, it damages plants by changing soil composition; degrades water quality in rivers, lakes and streams; damages crops; and can cause buildings and monuments to decay.

Like humans, animals can suffer health effects from exposure to air pollution. Birth defects, diseases, and lower reproductive rates have all been attributed to air pollution.

Source: Air Pollution (nationalgeographic.org )

Faisal

2024-03-12 21:23:32 UTC

We are responsible for pollution on earth as we have cut down the trees which is the cause of polluted air and global warming. Moreover we have set up the factories which emit their waste in air and water. Throwing of garbage, including plastic on roads also leads to pollution.There are many small, but critical sources of air pollution in our homes and neighborhoods. Such sources — vehicles, construction equipment, lawn mowers, dry cleaners, backyard fires, and auto-body shops — are located where we live and work. Total emissions from these smaller but widespread sources are significantly greater than all the industrial sources in the state combined.

To prevent pollution from these sources, the MPCA provides education, guidance, and incentives for reducing air pollution. We have programs for businesses, cities, nonprofits, and communities that address a range of environmental problems, including air quality.

Drive your car less. Vehicle exhaust is a major source of air pollution in Minnesota. Carpool. Bike. Bus. Telecommute. Electric vehicles. How could you burn less fuel?
Keep your car in good repair. Fix exhaust and oxygen sensor problems ASAP. Check your tire pressure monthly; under-inflated tires have been shown to lower gas mileage, particularly at lower speed.
Turn off your engine. An idling engine creates a hot spot of pollution. Buses and big trucks produce particularly unhealthy exhaust. Parents and teachers can help their schools and daycares develop and implement no-idling policies.
Don't burn your garbage. Burning your household garbage is dangerous to your health and our environment, and generally against the law in Minnesota. If you're still using a burn barrel, wood stove, or fire-pit for your trash, contact your county about arranging for trash hauling services.
Limit backyards fire in the city. Smoke from backyard fires can cause unhealthy conditions for hundreds of people, especially during stagnant weather conditions. Since cities have elevated levels of pollution compared to rural areas, urban fires are more of a nuisance to people with asthma and other lung conditions. If you do have a campfire:
- Keep fires brief and small — 3 feet across or less.
- Burn only dry fire wood. In the Twin Cities it is illegal to burn any waste in a fire, even yard waste.
- Never start campfires during an air quality alert. Sign up for texts or emails about elevated air pollution levels.
Plant and care for trees. Trees filter pollutants and absorb carbon dioxide. Trees also release oxygen into the atmosphere and help cool our homes.
Switch to electric or hand-powered lawn equipment. Gas-powered engines like those on lawnmowers and leaf or snow blowers often lack pollution control devices. An hour running a lawn mower can produce nearly the same amount of pollution as a 100-mile car trip! Use hand-powered or electric lawn care equipment instead.
Use less energy. Choose efficient appliances and heating systems. Get an energy audit and follow the advice. Turn off electrical stuff you are not using. It all adds up.
Become a champion for clean air. Direct local businesses, city offices, and school districts toward programs that can help them reduce air pollution and become more sustainable.
source : https://www.pca.state.mn.us/news-and-stories/what-you-can-do-about-air-pollution