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It forms when photons of sunlight hit moleculesof different kinds of pollutants in the atmosphere. The photons make chemical reactions happen. The pollution molecules turn into other kinds of nasty chemicals. That mixture of bad chemicals is called photochemical smog. The chemicals in photochemical smog include nitrogen oxides, Volatile Organic Compounds (VOCs), ozone, and PAN (peroxyacytyl nitrate). Nitrogen oxides mostly come from the engines of cars and trucks. VOCs are given off by paint, gasoline, and pesticides. Ozone is a form of oxygen that is harmful. PAN is a type of pollution that is made by chemical reactions between other kinds of pollution. Natural and artificially emitted hydrocarbons in the presence of oxides of nitrogen undergo photochemical reactions which produce a cloud of toxic chemicals including ozone and a variety of harmful chemical gaseous and particulate agents. This process is powered by sunlight and some of the products, such as ozone, reach a peak soon after photon flux from the sun reaches a maximum, around midday. The thermal inversions often associated with some cities can lead to a dangerous buildup of smog in urban areas. Human deaths have been attributed to photochemical smog since the Industrial Revolution in cities such as London and New York.
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How is photochemical smog formed and what harm can it cause?
Photochemical smog is formed when sunlight reacts with pollutants like nitrogen oxides and volatile organic compounds from vehicle emissions. This reaction forms ground-level ozone and other harmful pollutants. Photochemical smog can cause respiratory issues, eye irritation, and damage to vegetation.
Photochemical smog is caused by the action on chemicals of what?
Photochemical smog is caused by the action of sunlight on pollutants like nitrogen oxides (NOx) and volatile organic compounds (VOCs) in the atmosphere. These pollutants react with sunlight to form ground-level ozone and other harmful compounds, creating the thick haze characteristic of photochemical smog.
What is fog intensity?
Fog intensity refers to the density or thickness of fog in a particular area. It is a measure of how much visibility is reduced due to fog, with higher intensity indicating thicker fog and lower visibility. Fog intensity can vary depending on factors such as temperature, humidity, and wind conditions.
Is photochemical smog most likely to occur when it's raining?
No, photochemical smog forms on clear, sunny days when sunlight reacts with pollutants like nitrogen oxides and volatile organic compounds in the air. Rain can help reduce smog levels by washing away pollutants.
Different types of fog?
There are two types of fog, advection fog and radiation, or ground fog. Advection fog is common along the pacific coast of the United States. Warm, moist air over the Pacific Ocean is blown inward. The other kind of fog is radiation, or ground fog. This fog is common lots of places. It forms when a layer of warm, moist air forms low to the ground.
What is the term for mixture of smoke chemicals and fog?
The original ten was smog for SMoke + fOG. With more modern events where the effect is caused by the action of sunlight and ozone on chemicals or auto exhaust and fog it is often referred to as Photochemical Smog
In brown air fog which substance combines with nitrogen dioxide in the sunlight to form photochemical smog?
In brown air fog, sulfur dioxide combines with nitrogen dioxide in sunlight to form photochemical smog. This reaction produces sulfuric acid and nitric acid as well as other reactive compounds that contribute to the formation of smog.
What do smoke and fog in the air combine together to create?
Smoke and fog combine to form "classic" smog. Most smog concerns today are about the "new improved" photochemical smog of hydrocarbons, nitrogen oxides and ozone.
What is the term for a mixture of smoke chemicals and fog?
The original ten was smog for SMoke + fOG. With more modern events where the effect is caused by the action of sunlight and ozone on chemicals or auto exhaust and fog it is often referred to as Photochemical Smog
What three things make up smog?
Classic smog is made of smoke, sulfur dioxide and fog Photochemical smog is made of reactive hydrocarbons, PAHs, nitrogen oxides, ozone
What is smog mixture of?
Classic smog is combination of smoke and fog. Modern smog, more properly called photochemical smog, is mixture of nitrogen oxides, PAHs, ozone and reactive hydrocarbons
Are there chemicals in fog?
It is possible. Since fog is nothing but a cloud on the ground, liquid chemicals could easily condensate into the fog. However, these chemicals wouldn't be different from the ones that you breathe in every day. So don't sweat it!
The capital of this country is famous for photochemical smog?
New Zeland is famous for its photochemical smog.
What process creates a photochemical smog?
http://www.wisegeek.com/what-is-photochemical-smog.htm Best I could do for you but .
Why is smog black?
Smog is not black. The original smog in London England was formed of sulfur dioxice from coal smoke and fog (hence the name) and was, at best greyer than ordinary fog. The present photochemical smog, formed from automobile exhaust and nitrogen oxides in the presence of sunlight, is brownish yellow when dense enough.
What is the statement of Stark-Einstein's law of photochemical equivalence?
Stark-Einstein's law of photochemical equivalence states that each photon absorbed or emitted in a photochemical reaction is associated with the activation of one molecule. This law helps to explain the relationship between light energy and the number of molecules undergoing photochemical reactions.
What actors and actresses appeared in Photochemical - 2013?
The cast of Photochemical - 2013 includes: Wade Story as Eden
