Industrial smog occurs in foggy, cool weather typical of that experienced in the British Isles and the eastern seaboard of the United States. Photochemical smog, on the other hand, occurs in hot, dry climates, and particularly on sunny days.
What is the difference between photochemical smog and industrial smog?
Industrial smog usually forms in cool, humid environments, and it contains large numbers of tiny aerosol particles that make it appear gray. Note that industrial smog—sometimes called sulfurous or black smog—is distinct from photochemical smog, which typically develops in warmer conditions in the summer.
What is industrial smog?
Industrial smog typically exists in urban areas where factories burn fossil fuels such as coal, which creates smoke and sulfur dioxide that mix with fog droplets to create a thick blanket of haze close to the ground.
What are the main components of industrial smog and photochemical smog?
Photochemical smog is a brownish-gray haze caused by the action of solar ultraviolet radiation on atmosphere polluted with hydrocarbons and oxides of nitrogen. It contains anthropogenic air pollutants, mainly ozone, nitric acid, and organic compounds, which are trapped near the ground by temperature inversion.
How are photochemical and industrial smog similar?
Both industrial and photochemical smog are types of air pollution. There has been an general decrease in air quality since the beginning of the Industrial Revolution, which saw an increase burning of fossil fuels to provide energy. Both types of smog are formed as a result of smoke released from industrial processes.
What are the two categories of smog What is the difference between the two?
Normal smog (often called London-type smog) is mainly a product of burning large amounts of high sulfur coal. Whereas photochemical smog is a more modern phenomena commonly produced by vehicle emissions in contact with sunlight—mostly from burning gasoline and diesel.
What are the common names of photochemical and industrial smog?
Photochemical smog, which is also known as “Los Angeles smog,” occurs most prominently in urban areas that have large numbers of automobiles. It requires neither smoke nor fog. This type of smog has its origin in the nitrogen oxides and hydrocarbon vapours emitted by automobiles…
Is industrial smog primary or secondary?
Industrial Smog
These aerosols are called secondary pollutants because they have undergone chemical transformations in the atmosphere. Together, the aerosols and soot remain in the air until they are dissipated by wind or precipitation. This brings us to a further by product of coal burning.
Where is the most industrial smog?
Ahwaz, Iran. The city of Ahwaz ranks worst on the WHO’s list when it comes to smog, making it, officially, the city with the dirtiest air in the world. The reason is the amount of heavy industry in the city, which uses oil, metals and natural gas in its production processes.
What is the main component of industrial smog?
The main component of industrial smog is sulfur dioxide, which is one of the byproducts of burning coal. Sulfur dioxide can cause serious respiratory problems if inhaled, so industrial smog is extremely unhealthy.
Does industrial smog have ozone in it?
Ozone, an important component of smog, is a highly reactive and unstable gas capable of damaging living cells, such as those in human lungs. This pollutant forms in the atmosphere through complex reactions between chemicals directly emitted from vehicles, industrial plants, consumer products and many other sources.
What are the two types of photochemical smog?
At least two distinct types of smog are recognized: 1) Sulfurous smog (or ‘London-type’ smog); 2) Photochemical smog (‘Los Angeles-type’ smog).
What are the effects of industrial 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.
What is the difference between photochemical smog?
What is photochemical smog? Photochemical smog is a mixture of pollutants that are formed when nitrogen oxides and volatile organic compounds (VOCs) react to sunlight, creating a brown haze above cities. It tends to occur more often in summer, because that is when we have the most sunlight.
What type of pollution is industrial?
Pollution whose source originates directly from industry is known as industrial pollution. After the Industrial Revolution, manufacturing and technology made advances, which resulted in more factories and more industry. These factories emitted smoke into the air.
What is an example of photochemical smog?
It is also related to the concentration of secondary pollutants (in some cases). Common examples of primary pollutants that contribute towards photochemical smog include oxides of nitrogen such as nitric oxide, nitrogen dioxide, and nitrous oxide and most VOCs (volatile organic compounds).
What is difference between photochemical smog and London smog?
As the reaction take place in the presence of light to form the smog, it is called 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. |
What are the sources of industrial smog?
Today, most of the smog we see is photochemical smog. 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.
Which smog is more harmful?
Sulfurous smog (London smog)
The polluting particles mix with the cold air to form a thick fog that significantly worsens overall air quality.
What are the characteristics of photochemical smog?
Photochemical smog is a brownish-gray haze caused by the action of solar ultraviolet radiation on atmosphere polluted with hydrocarbons and oxides of nitrogen. It contains anthropogenic air pollutants, mainly ozone, nitric acid, and organic compounds, which are trapped near the ground by temperature inversion.
What are the two types of industrial pollutants?
Solution : The five types of industrial pollution are- (i) Air pollution, (ii) Water pollution, (iii) Land pollution, (iv) Noise pollution and (v) Thermal pollution.
(i) Air pollution.