What is smog explain?

What is smog explain?

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.

What is smog made of?

This kind of visible air pollution is composed of nitrogen oxides, sulphur oxides, ozone, smoke and other particulates. Man-made smog is derived from coal combustion emissions, vehicular emissions, industrial emissions, forest and agricultural fires and photochemical reactions of these emissions.

Which of the following pollutants are responsible for the cause of smog *?

2. Which of the following pollutants are responsible for the cause of SMOG? Sol: (c) Both incinerators and emissions from vehicles.

What are the effects of smog?

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.

Why is smog dangerous?

Why is it harmful? 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.

Is rickets caused by smog?

Heavy smog is greatly decreases ultraviolet radiation. In fact, in the early part of the 20th century, heavy smog in some parts of Europe resulted in a decrease in the production of natural vitamin D leading to a rise in the cases of rickets. Smog causes a misty haze similar to fog, but very different in composition.

How is smog harmful to the environment?

What Are the Effects of Smog? Smog is made up of a combination of air pollutants that can compromise human health, harm the environment, and even cause property damage. The ozone in smog also inhibits plant growth and can cause widespread damage to crops and forests.

What are the harmful effects of SPM?

Health and Environmental Effects of Particulate Matter (PM)

  • premature death in people with heart or lung disease.
  • nonfatal heart attacks.
  • irregular heartbeat.
  • aggravated asthma.
  • decreased lung function.
  • increased respiratory symptoms, such as irritation of the airways, coughing or difficulty breathing.

What are the two types of smog?

At least two distinct types of smog are recognized: sulfurous smog and photochemical smog. Sulfurous smog, which is also called “London 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.

Who was most affected by the Great Smog?

Most of the victims were very young or elderly, or had pre-existing respiratory problems. In February 1953, Marcus Lipton suggested in the House of Commons that the fog had caused 6,000 deaths and that 25,000 more people had claimed sickness benefits in London during that period.

What is another name for smog?

Smog Synonyms – WordHippo Thesaurus….What is another word for smog?

fog haze
soot acid rain
carbon dioxide miasma
steam cloud
effluvium mistiness

What are examples of secondary pollutants?

Examples of a secondary pollutant include ozone, which is formed when hydrocarbons (HC) and nitrogen oxides (NOx) combine in the presence of sunlight; NO2, which is formed as NO combines with oxygen in the air; and acid rain, which is formed when sulfur dioxide or nitrogen oxides react with water.

What are primary and secondary air pollutants with examples?

Primary air pollutants: Pollutants that are formed and emitted directly from particular sources. Examples are particulates, carbon monoxide, nitrogen oxide, and sulfur oxide. Secondary air pollutants: Pollutants that are formed in the lower atmosphere by chemical reactions.

How many primary pollutants are there?

The primary pollutants are “directly” emitted from the processes such as fossil fuel consumption, Volcanic eruption and factories. The major primary pollutants are Oxides of Sulphur, Oxides of Nitrogen, Oxides of Carbon, Particulate Matter, Methane, Ammonia, Chlorofluorocarbons, Toxic metals etc.

Is so2 is a secondary pollutant?

Sulfur dioxide is also a natural byproduct of volcanic activity. Like nitrogen dioxide, sulfur dioxide can create secondary pollutants once released into the air. Secondary pollutants formed with sulfur dioxide include sulfate aerosols, particulate matter, and acid rain.

Which environmental problem is the most dangerous?

World’s Deadliest Environmental Threats-1

  1. Pollution. It takes millions of years to eliminate air, water and soil pollution.
  2. Population Growth. World Population growth has reached a critical threshold, resulting in a shortage of resources such as water, fuel and food.
  3. Global Warming.
  4. Depletion of Natural Resources.
  5. Waste.
  6. Climate Change.
  7. Deforestation.
  8. Ozone Depletion.