What is SMOG and how is it caused?

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. VOCs are released from gasoline, paints, and many cleaning solvents.

1. What is smog and its causes and effects?
2. What is smog in simple words?
3. What is smog effect?
4. What causes smog in Pakistan?
5. What is smog made of?
6. What is smog class8?
7. Which disaster is related to smog?
8. What causes pollution?
9. What is industrial smog?
10. How is smog formed how does it affect human health?
11. Who created smog?
12. Does LA still have smog?
13. What causes the smog in LA?

What is smog and its causes and effects?

Smog refers to a noxious mixture of gases and particles that often appears as a haze in the air. It has been linked to a number of adverse effects on health and the environment. The two primary pollutants in smog are ground-level ozone ( O₃ ) and particulate matter ( PM ).

What is smog in simple words?

Smog is a type of air pollutant; the word "smog" is a combination of smoke and fog. Classic smog results from large amounts of coal burning in an area and is caused by a mixture of smoke and sulfur dioxide. ... They also get pollution from some neighbouring regions, due to the pattern of air movement in the area.

What is smog effect?

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 causes smog in Pakistan?

Nitrogen oxides come from car exhaust, coal power plants, and factory emissions. VOCs are released from gasoline, paints, and many cleaning solvents. When sunlight hits these chemicals, they form airborne particles and ground-level ozone-or smog.

What is smog made of?

Smog, formed mainly above urban centres, is composed mainly of tropospheric ozone (O₃); primary particulate matter such as pollen and dust; and secondary particulate matter such as sulphur oxides, volatile organic compounds, nitrogen oxides (NO_x) and ammonia gas.

What is smog class8?

Smog: This is a thick fog-like layer in the atmosphere, especially during winters, made up of fog and smoke. • Sulphur dioxide is mainly produced by burning fuels such as coal. It causes respiratory problems, including permanent lung damage.

Which disaster is related to smog?

Great Smog of London, lethal smog that covered the city of London for five days (December 5–9) in 1952, caused by a combination of industrial pollution and high-pressure weather conditions. This combination of smoke and fog brought the city to a near standstill and resulted in thousands of deaths.

What causes pollution?

The Short Answer: Air pollution is caused by solid and liquid particles and certain gases that are suspended in the air. These particles and gases can come from car and truck exhaust, factories, dust, pollen, mold spores, volcanoes and wildfires. The solid and liquid particles suspended in our air are called aerosols.

What is industrial smog?

Both industrial smog and photochemical smog are forms of air pollution. ... 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.

How is smog formed how does it affect human health?

In present time's smog are caused due to vehicular emission, industrial fumes which react in atmosphere along with sunlight to form photochemical smog. ... The air pollutants from smog cause serious problems to senior citizens, children and people with heart and lung problems leading to emphysema, bronchitis, asthma.

Who created smog?

Arie Haagen-Smit discovered the nature and causes of photochemical smog. He made the discovery while on a one-year leave of absence from Caltech, where he was a bioorganic chemistry professor.

Does LA still have smog?

Los Angeles began 2020 with a clean-air streak but ended with its worst smog in decades. ... The year 2020 will instead go down as one of Southern California's smoggiest in decades.

What causes the smog in LA?

Most of the atmospheric pollutants in Los Angeles are primary pollutants caused by combustion of fuels in cars, trucks, and other vehicles. ... The nitrogen oxides are products of combustion. VOC's result from the evaporation of fuel and chemical solvents. The chemical reactions that cause smog are photochemical reactions.