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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 are the causes and effects of smog?
Smog forms when pollutants are released into the air. The pollutants are formed both naturally and by humans, however, the human-induced pollutants are of most concern due to the magnitude of pollutants produced by the burning and extraction of fossil fuels, which are known to cause extreme health effects.
What is smog effect?
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 are the 3 main causes of air pollution?
The main causes of air pollution can be categorized by source: Mobile: Cars, buses, planes, trucks and trains. Stationary: Power plants, oil refineries, industrial facilities and factories. Area: Agricultural areas, cities and wood-burning fireplaces. Natural: Wind-blown dust, wildfires and volcanoes.
What causes smog in California?
Ozone is one of the major constituents of smog and is formed in the atmosphere by complex reactions with chemicals that are directly emitted from motor vehicles and other combustion sources.Contact. Pollutant Examples of Sources Nitrogen Dioxide (NO 2 ) See carbon monoxide sources.
What causes smog quizlet?
What causes smog? Smog is mostly caused by action of sunlight on a mixture of hydrocarbons & oxides of Nitrogen.
Which of following pollutants are responsible for the cause of smog?
2. Which of the following pollutants are responsible for the cause of SMOG? Answer: (c) Both incinerators and emissions from vehicles.
What are the 5 major causes of air pollution?
5 Major Causes of Air Pollution Industry. Industries are a major contributor to air pollution. Vehicle Emissions. Source. Household and Farming Chemicals. Deforestation. Smoking.
What are 5 causes of pollution?
We have listed 10 common air pollution causes along with the effects that have serious implication on your health on a daily basis. The Burning of Fossil Fuels. Industrial Emission. Indoor Air Pollution. Wildfires. Microbial Decaying Process. Transportation. Open Burning of Garbage Waste. Construction and Demolition.
What are the causes of air pollution Class 8?
The various sources of air pollution are: Smoke emitted from homes by the burning of fuels like wood, cow-dung cakes, kerosene and coal. Exhaust gases emitted by motor vehicles (automobiles) due to burning of petrol and diesel. Smoke emitted by factories and thermal power plants due to burning of coal.
How did LA get rid of smog?
But the air quality in Los Angeles had improved, and that was largely due to the Clean Air Act, which helped lower emissions from cars and industry.
What are the 2 types of smog?
Sulfurous smog and photochemical smog are two distinct types of smog recognised so far. Sulfurous smog, also known as London smog, develops due to high concentration of sulfur oxides in the air.
What are the six most common types of air pollutants?
Common Air Pollutants They are particulate matter (often referred to as particle pollution), ground-level ozone, carbon monoxide, sulfur dioxide, nitrogen dioxide, and lead.
What causes smog and acid rain?
What causes smog and acid rain? … Photochemical smog is caused by nitrogen oxides combing with sunlight and other pollutants. Acid rain is caused by sulfur oxides and nitrogen oxides combining with water.
What is smog quizlet?
-Smog: a poisonous mixture of smoke, aire, and other pollutants. -need: emissions, warmth/sunlight, and no air movement.
Which is a major source of pollution quizlet?
Terms in this set (30) Most air pollution comes from motor vehicles and industry. Smog results from chemical reactions that involve sunlight, air, automobile exhaust, and ozone. Temperature inversion is the atmospheric condition in which warm air traps cooler air near Earth’s surface.
How many types of smog are there?
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.
What causes maximum pollution?
carbon monoxide is the gas which causes maximum amount of air pollution.
What causes pollution Mcq?
Air Pollution MCQ Question 7 Detailed Solution The correct answer is carbon dioxide.
What are the causes of air pollution Class 9?
There are two types of air pollutants: Primary Pollutants. The pollutants that directly cause air pollution are known as primary pollutants. Secondary Pollutants. Burning of Fossil Fuels. Automobiles. Agricultural Activities. Factories and Industries. Mining Activities. Domestic Sources.
What are the sources and causes of air pollution?
mobile sources – such as cars, buses, planes, trucks, and trains. stationary sources – such as power plants, oil refineries, industrial facilities, and factories. area sources – such as agricultural areas, cities, and wood burning fireplaces. natural sources – such as wind-blown dust, wildfires, and volcanoes.
What are the causes of air pollution in India?
The biggest source of PM2. 5 is households. By burning solid fuels such as wood and dung to cook food and heat dwellings, they account for between 27% and 50% of the country’s emissions. But certain toxins, such as sulphur dioxide, are mostly produced by India’s coal-guzzling power sector.
What causes city pollution?
The sources of air pollution are intrinsically linked to how we live in cities. While many people see cars and transport as the most obvious causes of air pollution, nearly 70% of particulate matter is related to the built environment such as heating of buildings, construction and traffic related to it.
What are the 10 effects of pollution?
Asthma attacks: Breathing ozone and particle pollution can lead to increased asthma attacks, which can result in visits to the emergency room and hospital admissions, not to mention missed work and school. Cardiovascular disease: Air pollution can increase the risk of both heart attacks and stroke.
What are the 10 effects of air pollution?
Disastrous Effects of Air pollution Respiratory and Heart Problems. The effects of air pollution are alarming. Child Health Problems. Air pollution is detrimental to your health even before you take your first breath. Global Warming. Acid Rain. Eutrophication. Effect on Wildlife. Depletion of the Ozone Layer.
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.
What is smog Class 9?
What is smog? Answer: The suspended particles like unburnt carbon particles and hydrocarbons mix with smoke and fog in the atmosphere, especially in the cold weather to form smog which results in a lowered visibility.
