What is smog How is smog formed?

What is smog How is smog formed?

What is smog How is smog formed? Photochemical smog is produced when sunlight reacts with nitrogen oxides and at least one volatile organic compound (VOC) in the atmosphere. Nitrogen oxides come from car exhaust, coal power plants, and factory emissions. When sunlight hits these chemicals, they form airborne particles and ground-level ozone—or smog.

What is smog How is smog formed what are its harmful effects? Smog is the combination of both smoke and fog. It is formed when they both mix with each other. Harmful effects are it reduces our vision and causes respiratory diseases like Asthma, Heart attack, Damage to nervous system, Skin cancer and Stroke.

Why is smog called smog? Smog is a kind of air pollution, originally named for the mixture of smoke and fog in the air. Classic smog results from large amounts of coal burning in an area and is caused by a mixture of smoke and sulfur dioxide.

What is meaning of smog? : a fog made heavier and darker by smoke and chemical fumes also : a photochemical haze caused by the action of solar ultraviolet radiation on atmosphere polluted with hydrocarbons and oxides of nitrogen especially from automobile exhaust.

What is smog How is smog formed? – Related Questions

What is smog in geography?

Smog is air pollution that reduces visibility. The term “smog” was first used in the early 1900s to describe a mix of smoke and fog. The smoke usually came from burning coal. Smog was common in industrial areas, and remains a familiar sight in cities today.

Is smog worse than smoke?

Air Pollution May Be As Harmful To Your Lungs As Smoking Cigarettes, Study Finds. Smog is common not only in Los Angeles but also in cities across the country. New research finds that long-term exposure to high levels of air pollution may be as harmful to the lungs as smoking. Emphysema is considered a smoker’s disease

What is an example of smog?

Smog is a mix of fog and smoke, or a layer of polluted air. An example of smog is a low-lying yellow or brown layer of air. Smog is common in large urban areas, especially during hot, sunny weather, where it appears as a brownish haze that can irritate the eyes and lungs.

What type of word is smog?

A noxious mixture of particulates and gases that is the result of urban air pollution.

What is 12th smog?

The combination of smoke and fog is called smog. It is of two types: (i) During the formation of photochemical smog, concentration of ozone, peroxyacylnitrate (PAN), aldehydes (RCHO) and ketones (R2CO) build up in the atmosphere. All these compounds produce irritation in the eyes and also in the respiratory system.

Why is smog dangerous?

Smog can irritate your eyes, nose and throat. Or it can worsen existing heart and lung problems or perhaps cause lung cancer with regular long-term exposure. It also results in early death. Studies on ozone show that once it gets into your lungs, it can continue to cause damage even when you feel fine.

What are some effects of smog?

When inhaled, smog irritates our airways, increasing our risk of serious heart and lung diseases. These health risks are why many cities monitor smog levels. On a high ozone-alert day, for example, your eyes and throat may burn, and you may cough and wheeze.

Who has coined the term smog?

physician Harold Des Veaux
London, England, physician Harold Des Veaux coined the word smog in 1905 to describe natural fog contaminated by smoke: smoke + fog yielded smog.

How do you die from air pollution?

Direct causes of air pollution related deaths include aggravated asthma, bronchitis, emphysema, lung and heart diseases, and respiratory allergies.

What countries have a huge smog problem?

The silent killer. Dipak Shelare/Shutterstock.
Most polluted countries – Kuwait: 34 µg/m3 in 2020. SCraitza / Shutterstock.com.
China: 34.7 µg/m3 in 2020.
Mali: 37.9 µg/m3 in 2020.
Nepal: 39.2 µg/m3 in 2020.
Bahrain: 39.7 µg/m3 in 2020.
Bosnia and Herzegovina: 40.6 µg/m3 in 2020.
Indonesia: 40.7 µg/m3 in 2020.

Which statement is true about smog?

Answer: All the above statement are true. photochemical smog is composed of two types of pollutants.

Is living in a city bad for your lungs?

Even if you’ve never smoked, just living in a city with polluted air could lead to emphysema. A new study published in the Journal of the American Medical Association found that air pollution—and in particular ozone, which is increasing with climate change—makes the lung disease progress faster.

Does smokey air make you tired?

High concentrations of smoke can trigger a range of symptoms from burning eyes, runny nose, cough, phlegm, wheezing and difficulty breathing. Those variety of health symptoms could make you feel lethargic, forgetful and less productive.

What are the 5 effects of air pollution?

10 Serious Effects of Air Pollution on the Environment
Global Warming.
Climate Change.
Acid Rain.
Smog effect.
Deterioration of fields.
Extinction of animal species.
Respiratory health problems.
Deterioration in building materials.

Why is air pollution most dangerous?

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.

What is the difference between London smog and Los Angeles smog?

At least two distinct types of smog are recognized: Classical smog and photochemical smog.

Classical Smog vs Photochemical Smog.
London smog or Classical smog Los Angeles smog or Photochemical smog
It involves smoke and fog (smog) The word smog is misnomer here as it does not involve any smoke or fog.
6 more rows

How many kinds of smog are there?

At least two distinct types of smog are recognized: 1) Sulfurous smog (or ‘London-type’ smog); 2) Photochemical smog (‘Los Angeles-type’ smog). Sulfurous smog results from a high concentration of sulfur oxides in the air and is caused by the use of sulfur-bearing fossil fuels, particularly coal.

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