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.
What is the major source of photochemical smog quizlet?
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. You just studied 13 terms!
Which is the major photochemical smog?
Ground-level ozone
constitutes one of the major components of photochemical smog, so called because of the photochemical reaction of air pollutants such as nitrogen oxides (NOx) and volatile organic compounds (VOCs) with ultraviolet light (sunlight); thus, the O
3
levels vary strongly with season and the highest levels …
What is the causes of photochemical smog?
A chemical reaction between solar ultraviolet radiation and an atmosphere polluted with hydrocarbons and oxides of nitrogen
causes photochemical smog. … Smog can happen both during the day and at night, but photochemical smog only happens in the presence of sunlight.
What are the 3 major ingredients of photochemical smog?
The main components of photochemical smog are
nitrogen oxides, Volatile Organic Compounds (VOCs), tropospheric ozone, and PAN (peroxyacytyl nitrate)
.
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.
What is a major source of air pollution?
There are four main types of air pollution sources:
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.
Which is the major contributor of carbon monoxide?
The greatest sources of CO to outdoor air are
cars, trucks and other vehicles or machinery that burn fossil fuels
. A variety of items in your home such as unvented kerosene and gas space heaters, leaking chimneys and furnaces, and gas stoves also release CO and can affect air quality indoors.
What is the main oxidant in photochemical smog?
Photochemical oxidants are found in ‘photochemical smog’ which is a complex mixture of primary and secondary air pollutants. … The most important phytotoxic components produced by these atmospheric photochemical reactions are
ozone and peroxyacetyl nitrate
.
What are the major components of smog and how does it form?
Smog, formed mainly above urban centres, is composed mainly of
tropospheric ozone (O
3
);
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.
Which is a major source of outdoor air pollution quizlet?
Outdoor air pollution comes mostly from
natural sources and burning fossil fuels in vehicles and power and industrial plants
.
Which of the following is a source of pollution in the environment?
The main sources of pollution are
household activities, factories, agriculture and transport
. Once they have been released into the environment, the concentration of some pollutants is reduced by dispersion, dilution, deposition or degradation.
What are the 2 major sources of air pollution in urban areas?
Name two major sources of air pollution in urban areas. Most air pollution in urban areas comes from
motor vehicles and industry
.
Which are the major sources of hazardous emissions?
Where do hazardous air pollutants come from? Most air toxics originate from
human-made sources
, including mobile sources (e.g., cars, trucks, buses) and stationary sources (e.g., factories, refineries, power plants), as well as indoor sources (e.g., some building materials and cleaning solvents).
What are the 3 main causes of air pollution?
- 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 are the two main sources of air pollution Brainly?
Answer: The two major sources of air pollution is;
Air factory or all factory which produce pollution
.
Which of the following gas is highest contributor to the air pollution?
Carbon dioxide
is the greenhouse gas most scientists consider the main air pollutant of the Earth’s atmosphere. Even though carbon dioxide is essential to support living organisms, it is also a dangerous air pollutant, generated mostly by human activities such as deforestation and the fossil fuel combustion.
What is the major source of air pollution in metro cities?
In metro cities
automobiles
is the major cause of air pollution or atmospheric pollution. Metropolitan cities refer to urban areas with a high population in the range of 1 million or 10 lakhs having industrial, commercial, and economical significance.
Which of the following are sources to fluorine air pollution?
Which of the following are sources to fluorine air pollution? Explanation:
Phosphate rock (Fluorapatite)
is used for manufacturing of fertilisers and contributes to fluorine air pollution along with steel industries and coal combustion.
Is formaldehyde a component of photochemical smog?
The common components of photochemical smog are ozone, nitric oxide, acrolein,
formaldehyde
and peroxyacetyl nitrate (PAN).
What are the 5 major causes of air pollution?
- The Burning of Fossil Fuels. …
- Industrial Emission. …
- Indoor Air Pollution. …
- Wildfires. …
- Microbial Decaying Process. …
- Transportation. …
- Open Burning of Garbage Waste. …
- Construction and Demolition.
Which is a major source of air pollution created by humans Group of answer choices?
Vehicle emissions, fuel oils and natural gas to heat homes
, by-products of manufacturing and power generation, particularly coal-fueled power plants, and fumes from chemical production are the primary sources of human-made air pollution.
What is the main source of the indoor air pollution radon quizlet?
What is the main source of the indoor air pollutant radon?
Natural emissions seeping into building foundations from the ground
.
Which process is a source of outdoor air pollution?
The common sources of outdoor air pollution are emissions caused by
combustion processes from motor vehicles
, solid fuel burning and industry. Other pollution sources include smoke from bushfires, windblown dust, and biogenic emissions from vegetation (pollen and mould spores).
Which of the following are the major sources of air pollution in the United States?
Cars, Trucks, Buses and Air Pollution
.
Transportation
is a major source of air pollution in the United States.
Which of the following is the major source of environmental pollution in urban areas?
The recently published study shows, based on the available information, that traffic (25%),
combustion
and agriculture (22%), domestic fuel burning (20%), natural dust and salt (18%), and industrial activities (15%) are the main sources of particulate matter contributing to cities’ air pollution.
What causes 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. … When sunlight hits these chemicals, they form airborne particles and ground-level ozone—or smog.
Which are the major air pollutants?
Major air pollutants include
carbon monoxide (CO), ammonia (NH
3
)
, nitric oxide (NO), nitrogen dioxide (NO
2
), ozone (O
3
), particulate matter (PM), sulphur dioxide (SO
2
) and volatile organic compounds (VOC).
Which pollutant is more hazardous?
Ultrafine particles (UFPs)
are less than 0.1 microns in diameter and make up roughly 90% of all airborne particles. UFPs are the most dangerous particulate matter because their tiny size makes them extremely inhalable.
What are the major sources of NOx?
NOx pollution is emitted by
automobiles, trucks and various non-road vehicles
(e.g., construction equipment, boats, etc.) as well as industrial sources such as power plants, industrial boilers, cement kilns, and turbines. NOx often appears as a brownish gas.
What are the sources of air pollution in metropolitan cities in India with examples?
- Vehicle exhaust is up to 30%
- Biomass burning is up to 20%
- Soil and road dust is up to 20%
- Industries is up to 15%
- Open waste burning is up to 15%
- Diesel generators is up to 10%
- Power plants is up to 5%
- Outside the urban airshed is up to 30%
