Air Pollution 101 | National Geographic


– (piano music) – [Women Speaker] Air
pollution consists of chemicals or particles in the
atmosphere, that pose serious health and environmental threats. But what causes air pollution? And what does it mean for our planet? Some air pollution comes
from natural sources, like volcanic eruptions,
wild fires, or allergens. But most air pollution
results from human activities. Such as energy used in agriculture. There are different types
of human-made air pollution. When we burn fossil fuels to
produce energy they release greenhouse gasses into the air. This emissions such as
carbon dioxide, methane, nitrous oxide and
fluorinated gasses trap heat from the sun in earth’s atmosphere. Leading to a rise in global temperatures. This creates a cycle where air pollution contributes to climate change. And climate change creates
higher temperatures. In turn, higher temperatures intensifies some types of air pollution. For example, climate
change increases smog, because it forms in the
presence of high heat and increased levels of
ultraviolet radiation. More frequent extreme
weather, such as flooding, contributes to damp conditions
and therefore a rise in mold. Warmer weather also leads
to longer pollen seasons, and therefore more pollen production. Smog, is a type of air pollution,
that reduces visibility and has serious health effects. Smog can be divided into two categories; sulfurous and photochemical. Sulfurous smog is made up of chemical compounds called sulfur oxides. It occurs when burning
sulfur baring fossil fuels, such as coal. Photochemical smog, also
called ground level ozone, is a result of the
reaction between sunlight, and nitrogen oxides, and
volatile organic compounds. Nitrogen oxides come from car exhaust, coal power plants, and factory emissions. Volatile organic compounds
are released from gasoline, paints, and
many cleaning solvents. Smog not only creates a brown
haze that reduces visibility, but also harms plants, irritates the eyes, and causes respiratory distress. Another category of air
pollution is toxic pollutants. These are chemicals such
as mercury, lead, dioxins, and benzine that are released
during gas or coal combustion, waste incineration, or
burning of gasoline. In addition to adverse
environmental effects, toxic air pollution can cause
serious health problems. Such as cancer,
reproductive complications, and birth defects. While air pollution has many consequences for our planet, there are solutions. We can limit toxic pollutes,
smog and greenhouse gases, by decreasing the use of fossil fuels. Such as in transportation, manufacturing, and electricity generation. Reducing air pollution, not
only contributes to a cleaner environment, and better human
health, but can also slow the rate of global warming. (chime music)

Comments 26

  • I don't care if you don't believe in global warming/climate change
    But you can not deny pollution

  • INVESTING IN EDUCATION FOR THE YOUNG GENERATION IS THE BEST

  • WE CAN FIGHT POLLUTION BY PLANTING 7.5 BILLION TREES IN ONE YEAR

    HERE HOW CAN WE DO IT IN A SIMPLE WAY

    EVERY PERSON ON THIS EARTH IS BORN IN A DAY WITHIN A YEAR AND CURRENT POPULATION IS 7.5 BILLION. EVERY PERSON CELEBRATES HIS OR HER BIRTHDAY IN DIFFERENT WAYS MOST PEOPLE DO BY BUYING A CAKE SO IF EVERYONE BUYS A PLANT WITH IT AND PLANT IT IN BACKYARD ON EVERY BIRTHDAY THAN AUTOMATICALLY IN A YEAR BILLION NEW TREES GROW.

    SHARE IT IF U THINK THIS IDEA IS GOOD TO FIGHT GLOBAL WARMING.

    THANK U FOR READING

  • Outstanding explanation love you

  • my friend says he raped a fo

  • Carol Browner, the Clinton era EPA zealot/director,  linked rises and declines in atmospheric particulate with rises and declines in death rates.  With sympathetic national media urging her on, she used this data to justify draconian new emissions rules on coal-fired power plants and diesel engine makers.  What her data actually showed was that more chronically sick and old people die in colder months than warmer months. And coincidentally, particulate levels are higher in cold months.   Just as today‘s eco zealots assume there can be no other cause of global warming than burning fossil fuels, Browner assumed there could be no other cause of variations in death rates over time than particulate levels.  What this really shows is bad science begets bad policies.

  • This is sad, but true.

  • I suggest we all remain idle. Do Not Leave your homes. Make sure your homes are monitored for climate change. Do not have children. If you do You will suffer the consequences. Do not fly on planes that run on fuel. Do not drive cars, motorcycle’s, buses, boats or trains that run on fuel. Is anyone waiting for a delivery from Amazon? Don’t accept it their trucks are polluting your neighborhood. Enjoy your day ! 🤮

  • Video: we can save this

    Me: BURNS PLASTIC

  • i was so scared that my mind says omg is there chance, and this video says theres a chance i said in my omg thank god

  • Need to start green energy, electric cars 0 pollution wherever applicable. Need to focus this as priority. And free of cost to reduce pollution.

  • OMG.i not gos city

  • ไทยก็มีเยอะนาคะ

  • Thank you

  • Oh I hope mother nature would finish us just like with the dinosaurs.

  • everyone: talking about how bad pollution is and what we can do to decrease it
    Me: – wow within a decade we really messed up this wonderful planet…-

  • Go check my video about pollution pls

  • India air pollution control

  • I love her voice.

  • All these pollutions we under attack, We have one earth, We May be the Last generation to save our planet those people polluting will regret their decisions but it is way too late for us we are too late son our earth I hate to live in a world that may end quickly I’m sorry for the children how have just been born and there world is almost dead when they have barley seen us we will soon die! Our forests are gone our land is crumbling our air is not worth breathing our land is not worth walking our tress are not worth having, we only have 1 earth and we can save it but time flys by we don’t have enough time.

  • 世界上最厉害的空气污染在中国

  • # NO OIL, NO POLLUTION !!

  • who is here for the IELTS?

  • Just arrest the owner of all the factories

  • And Slipknot?

  • Wow like you did something, every it gets worse.

Leave a Reply

Your email address will not be published. Required fields are marked *