In this article, we will Explain the following term Smog.
Definition of Smog.
Smog is a type of air pollution that occurs when smoke, dust, and other pollutants mix with fog or mist in the atmosphere. It’s often seen as a thick haze hanging over cities, especially during periods of stagnant air and high pollution levels. Smog is harmful to human health and the environment. It can irritate the eyes, nose, and throat, and exacerbate respiratory conditions like asthma and bronchitis. Long-term exposure to smog can lead to more serious health problems, including heart disease and lung cancer.
There are two main types of smog: Classic Smog and Photochemical Smog.
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Central Pollution Control Board (CPCB).
Classic Smog, also known as ‘London smog’ or ‘winter smog,’ occurs when coal or other fossil fuels are burned, releasing sulfur dioxide (SO2) and other pollutants into the air. These pollutants combine with water vapour to form sulfuric acid (H2SO4) and other harmful compounds, creating a thick, greyish haze.
Photochemical Smog, on the other hand, is formed when sunlight interacts with pollutants like nitrogen oxides (NOx) and volatile organic compounds emitted by vehicles, factories, and other sources. These pollutants react with sunlight to produce ozone (O3) and other secondary pollutants, which can cause respiratory problems and damage crops and other vegetation. Photochemical smog is often associated with warm, sunny days and is more common in urban areas with heavy traffic and industrial activity.
FAQ:
- How is smog formed?
- Is smog harmful?
- What is smog and its types?
- What is smog made of?
- What is smog chemistry?
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