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AIR
POLLUTIO
N
Air pollution is a type of
environmental pollution that affects the
air and is usually caused by smoke or
other harmful gases,
mainly oxides of carbon, Sulphur and
nitrogen. In other words, air pollution is
the contamination of air due to the
presence or introduction of a substance
which has a poisonous effect.
Air pollutants may be categorised as primary or secondary
 Primary pollutants : Primary pollutants are directly emitted to the atmosphere.
Air pollutants may have a natural, anthropogenic or mixed origin, depending on their sources or the sources of their precursors.
Key primary air pollutants include particulate matter (PM), black carbon (BC), sulphur oxides (SO2), nitrogen oxides (NOX)
(including nitrogen monoxide and nitrogen dioxide, NO2), ammonia (NH3), carbon monoxide (CO), methane (CH4), non-methane
volatile organic compounds (NMVOCs), including benzene, and certain metals and polycyclic aromatic hydrocarbons, including
benzo[a]pyrene (BaP).
 Secondary pollutants : secondary pollutants are formed in the atmosphere from precursor gases through chemical reactions
and microphysical processes.
Key secondary air pollutants are particulate matter(PM), ozone (O3), NO2 and several oxidized volatile organic compounds
(VOCs). Key precursor gases for secondary PM are Sulphur dioxide (SO2), NOX, NH3 and VOCs. These pollutants and their
precursor gases can be of both natural and anthropogenic origin including:
 burning of fossil fuels in electricity generation, transport, industry and households
 industrial processes and solvent use, for example in the chemical and mining industries
 agriculture
 waste treatment
 natural sources, including volcanic eruptions, windblown dust, sea-salt spray and emissions of volatile organic compounds from
plants.
The Burning of Fossil Fuels
Most of the air pollution takes place due to the burning
of fossil fuels such as coal, oil, gasoline to produce
energy for electricity or transportation. The release of
carbon monoxide in high level indicates how much fossil
fuel is burned. This also emits other toxic pollutants in
the air.
Industrial Emission
Industrial activities emit several pollutants in the air that
affects the air quality more than we can even imagine.
Particulate matter 2.5 and 10, Nitrogen dioxide, Sulfur
dioxide, and carbon monoxide are key pollutants that
are emitted from industries that use coal and wood as
their primary energy source for production of their
goods.
Transportation
There is no denying that vehicle pollution is the major
contributor to air pollution, especially in urban cities.
When the car burns gasoline, it emits pollutants in the
air which is as harmful as smoking 10 cigarettes a day.
Indoor Air Pollution
Use of toxic products also called as Volatile Organic
Compounds (VOCs), inadequate ventilation, uneven
temperature, and humidity level can cause indoor air
pollution, whether you are in office, school or at your
comfortable home. House air pollution can take place
due to ignorant factors, for instance, smoking tobacco
inside a room or leaving mold infected wall untreated.
Open Burning of Garbage Waste
Open burning of garbage is much more harmful to your
health and the environment than one may think. As per
Engage EPW, Delhi Air Pollution is choking public
health. Delhi generates a whopping 9500 tons of waste
every day, which makes it India’s second waste dumping
city.
Agricultural Activities
Agricultural activities have had a serious impact on the
decreasing air quality. To begin with pesticides and
fertilizers are the main source to contaminate the
surrounding air. Nowadays, pesticides and fertilizers are
mixed with new invasive species which are not found in
nature, for quick growth of the crops and vegetation.
ON THE ENVIRONMENT
Air pollution has a major impact on the process of plant
evolution by preventing photosynthesis in many cases, with
serious consequences for the purification of the air we breathe.
It also contributes to the formation of acid rain, atmospheric
precipitations in the form of rain, frost, snow or fog, which are
released during the combustion of fossil fuels and transformed
by contact with water steam in the atmosphere.
GLOBALWARMING
In fact, the abundance of carbon dioxide in the air is one of the
causes of the greenhouse effect. Normally, the presence of
greenhouse gases should be beneficial for the planet because
they absorb the infra-red radiation produced by the surface of
the earth. But the excessive concentration of these gases in the
atmosphere is the cause of the recent climate change.
No to plastic bags
The use of plastic products could be very
harmful to the environment as they take
a very long time to decompose, due to
their material made up of oil. The use of
paper bags instead is a better alternative
as they decompose easily and are
recyclable
To control air pollution is to speed up our transition to cleaner
fuels and industrial processes. By switching over to renewable
energy sources (such as wind and solar power), maximizing
fuel efficiency in our vehicles, and replacing more and more of
our gasoline-powered cars and trucks with electric versions,
we'll be limiting air pollution at its source while also curbing the
global warming that heightens so many of its worst health
impacts.
Recycle and Reuse
The concept of recycle and reuse is not just conserve
resources and use them judicially but also is helpful
for air pollution as it helps in reducing pollution
emissions. The recycled products also take less
power to make other products.
Turn off the lights
when not in use
The energy that the lights take
also contribute to air pollution,
thus less consumption of
electricity can save energy.
Use energy saving fluorescent
lights to help the environment.
 “When you see in the news or hear on the weather report that
pollution levels are high, it may be useful to limit the time when
children go outside or you go for a jog,” Study says. Generally,
ozone levels tend to be lower in the morning.
 If you exercise outside, stay as far as you can from heavily
trafficked roads. Then shower and wash your clothes to remove
fine particles.
 The air may look clear, but that doesn’t mean it’s pollution free.
Utilize tools like the EPA’s air pollution monitor, Air Now, to get
the latest conditions. If the air quality is bad, stay inside with
windows closed.
 If you live or work in an area prone to wildfires, stay away from
the harmful smoke as much as you’re able. Consider keeping a
small stock of masks to wear when conditions are poor.
 Wear sunscreen. When ultraviolet radiation comes through the
weakened ozone layer, it can cause skin damage and skin
cancer.
Made By : 9-T
PRESENTATION BY:
Rasulov Muhammadrizo

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Air Pollution.pptx

  • 2. Air pollution is a type of environmental pollution that affects the air and is usually caused by smoke or other harmful gases, mainly oxides of carbon, Sulphur and nitrogen. In other words, air pollution is the contamination of air due to the presence or introduction of a substance which has a poisonous effect.
  • 3. Air pollutants may be categorised as primary or secondary  Primary pollutants : Primary pollutants are directly emitted to the atmosphere. Air pollutants may have a natural, anthropogenic or mixed origin, depending on their sources or the sources of their precursors. Key primary air pollutants include particulate matter (PM), black carbon (BC), sulphur oxides (SO2), nitrogen oxides (NOX) (including nitrogen monoxide and nitrogen dioxide, NO2), ammonia (NH3), carbon monoxide (CO), methane (CH4), non-methane volatile organic compounds (NMVOCs), including benzene, and certain metals and polycyclic aromatic hydrocarbons, including benzo[a]pyrene (BaP).  Secondary pollutants : secondary pollutants are formed in the atmosphere from precursor gases through chemical reactions and microphysical processes. Key secondary air pollutants are particulate matter(PM), ozone (O3), NO2 and several oxidized volatile organic compounds (VOCs). Key precursor gases for secondary PM are Sulphur dioxide (SO2), NOX, NH3 and VOCs. These pollutants and their precursor gases can be of both natural and anthropogenic origin including:  burning of fossil fuels in electricity generation, transport, industry and households  industrial processes and solvent use, for example in the chemical and mining industries  agriculture  waste treatment  natural sources, including volcanic eruptions, windblown dust, sea-salt spray and emissions of volatile organic compounds from plants.
  • 4.
  • 5. The Burning of Fossil Fuels Most of the air pollution takes place due to the burning of fossil fuels such as coal, oil, gasoline to produce energy for electricity or transportation. The release of carbon monoxide in high level indicates how much fossil fuel is burned. This also emits other toxic pollutants in the air. Industrial Emission Industrial activities emit several pollutants in the air that affects the air quality more than we can even imagine. Particulate matter 2.5 and 10, Nitrogen dioxide, Sulfur dioxide, and carbon monoxide are key pollutants that are emitted from industries that use coal and wood as their primary energy source for production of their goods.
  • 6. Transportation There is no denying that vehicle pollution is the major contributor to air pollution, especially in urban cities. When the car burns gasoline, it emits pollutants in the air which is as harmful as smoking 10 cigarettes a day. Indoor Air Pollution Use of toxic products also called as Volatile Organic Compounds (VOCs), inadequate ventilation, uneven temperature, and humidity level can cause indoor air pollution, whether you are in office, school or at your comfortable home. House air pollution can take place due to ignorant factors, for instance, smoking tobacco inside a room or leaving mold infected wall untreated.
  • 7. Open Burning of Garbage Waste Open burning of garbage is much more harmful to your health and the environment than one may think. As per Engage EPW, Delhi Air Pollution is choking public health. Delhi generates a whopping 9500 tons of waste every day, which makes it India’s second waste dumping city. Agricultural Activities Agricultural activities have had a serious impact on the decreasing air quality. To begin with pesticides and fertilizers are the main source to contaminate the surrounding air. Nowadays, pesticides and fertilizers are mixed with new invasive species which are not found in nature, for quick growth of the crops and vegetation.
  • 8.
  • 9. ON THE ENVIRONMENT Air pollution has a major impact on the process of plant evolution by preventing photosynthesis in many cases, with serious consequences for the purification of the air we breathe. It also contributes to the formation of acid rain, atmospheric precipitations in the form of rain, frost, snow or fog, which are released during the combustion of fossil fuels and transformed by contact with water steam in the atmosphere. GLOBALWARMING In fact, the abundance of carbon dioxide in the air is one of the causes of the greenhouse effect. Normally, the presence of greenhouse gases should be beneficial for the planet because they absorb the infra-red radiation produced by the surface of the earth. But the excessive concentration of these gases in the atmosphere is the cause of the recent climate change.
  • 10. No to plastic bags The use of plastic products could be very harmful to the environment as they take a very long time to decompose, due to their material made up of oil. The use of paper bags instead is a better alternative as they decompose easily and are recyclable To control air pollution is to speed up our transition to cleaner fuels and industrial processes. By switching over to renewable energy sources (such as wind and solar power), maximizing fuel efficiency in our vehicles, and replacing more and more of our gasoline-powered cars and trucks with electric versions, we'll be limiting air pollution at its source while also curbing the global warming that heightens so many of its worst health impacts. Recycle and Reuse The concept of recycle and reuse is not just conserve resources and use them judicially but also is helpful for air pollution as it helps in reducing pollution emissions. The recycled products also take less power to make other products. Turn off the lights when not in use The energy that the lights take also contribute to air pollution, thus less consumption of electricity can save energy. Use energy saving fluorescent lights to help the environment.
  • 11.
  • 12.  “When you see in the news or hear on the weather report that pollution levels are high, it may be useful to limit the time when children go outside or you go for a jog,” Study says. Generally, ozone levels tend to be lower in the morning.  If you exercise outside, stay as far as you can from heavily trafficked roads. Then shower and wash your clothes to remove fine particles.  The air may look clear, but that doesn’t mean it’s pollution free. Utilize tools like the EPA’s air pollution monitor, Air Now, to get the latest conditions. If the air quality is bad, stay inside with windows closed.  If you live or work in an area prone to wildfires, stay away from the harmful smoke as much as you’re able. Consider keeping a small stock of masks to wear when conditions are poor.  Wear sunscreen. When ultraviolet radiation comes through the weakened ozone layer, it can cause skin damage and skin cancer.
  • 13. Made By : 9-T PRESENTATION BY: Rasulov Muhammadrizo