Photochemical Smog. Smog is the hazy, unhealthy polluted air that accumulates over cities and other regions under certain conditions.. Modern smog is derived primarily from precursor chemical pollutants, emitted to the atmosphere from vehicular internal combustion engines and industrial plants, that react in the atmosphere with sunlight to produce secondary chemical pollutants that also combine with the … Found inside â Page 388These factors contributed to the formation of photochemical smog , which , as you will soon learn , is different than the previously described industrial ... Found insidewas industrial smogâalso known as gray smog. ... Photochemical smogâalso known as brown smogâa different type of smog, is usually formed on ... Industrial smog comes from, clearly, industrial processes. The Major Chemical Found in Smog. 1. Photochemical smog, also known as summer smog, is a type of smog that is produced when UV light originating from the sun interacts with the oxides of nitrogen present in the atmosphere. Sources of nitrogen oxides include car exhaust, coal power plants, and factory emissions. Found inside â Page 238Photochemical smog results from the interaction between sunlight and the ... Industrial Smog and Sulfur Oxides Over the past 300 years coal has slowly ... Photochemical smog is also known as “Los Angeles smog”. Although both appear to the eye as yellow-brown haze, they differ in two key ways: chemistry and composition . AIR POLLUTANT Primary Air Pollutant NOx , VOCs Secondary Air Pollutant Ozone (O3) , PAN. 6. - smog is a mixture of pollutants that form when nitrogen oxides and volatile organic compounds react to sunlight, creating a haze that is common over cities. 1. In contrast, Solar … We truly love what we do and where we work. Photochemical (summer smog) forms when pollutants such as nitrogen oxides (primary pollutant) and organic compounds (primary pollutants) react together in the presence of … Smog was characterized by smaller amounts of carbon particles and sulfur dioxide than that found in England (Lewis 73). Smog frequently occurs in areas of high traffic or industrial areas, reducing air quality and having a … There are several different types of smog, each of which has different causes and results. The abundance of cars and sunshine provided the perfect setting for a chemical reaction between some of the molecules in auto exhaust or … Found inside â Page 473This term is used to contrast photochemical smog with industrial smog (gray smog) formed primarily by sulfur dioxide and suspended solid particles. Similar to most megacities in the world, Bangkok, the capital of Thailand, also has experienced photochemical smog pollution that is largely caused by high precursor emissions from mobile sources. This preview shows page 3 - 5 out of 5 pages. Privacy Atmospheric Brown Cloud: combination of ozone and particulate matter. 4. During the summer months, the formation of photochemical smog is greatest due to increased sunlight exposure. Photochemical smog differs from industrial smog in that it____. The main points of difference are given below: Classical smog Photochemical smog 1. years. Found inside â Page 1Smog forms when the moisture in a fog, for which London had long been famous, condenses around tiny particles from industrial emissions. Both industrial and photochemical smog are types of air pollution. Photochemical smog has devastating effects on the environment. Industrial smog is formed when sulfur dioxide and particulates, released by the combustion of coal, combine with water in fog to produce an acidic haze . Similar to photochemical smog, industrial smog is commonly found in urban areas, and is produced from coal-burning power plants. SMOG grade = 3 + Square Root of Polysyllable Count. The SMOG Formula is considered appropriate for secondary age (4th grade to college level) readers. The premises of McLaughlin’s SMOG Formula are: 1. A sentence is defined as a string of words punctuated with a period, an exclamation mark, or a question mark. This preview shows page 3 - 5 out of 5 pages. 20) Which of the following is a consequence of acidic deposition. Altshuller and Bufalini (1971) consider that our current understanding of smog emerged in the late 1960s. Photochemical smog is mainly caused by automobile exhaust and industrial emissions. C. is an unhealthy mixture of pollutants Photochemical smog differs from industrial smog in that Found insideThere are two types of smog: photochemical smog due to the interaction of sunlight with air pollution, and industrial smog. The main difference is that it ... The smog that you see is just a combination of smoke and fog, and it occurs in winter season most of the time in the cities that are packed with lots of vehicles. Photochemical smog, a different type of air pollution, first became a problem in Southern California after World War II. Terms. Found inside â Page 117Due to industrial promulgation and hot moist weather, this smog formation was also noted in Beijing and New Delhi (Chen et al., 2013). The photochemical ... Both of them are harmful to us and for our elderlies. Smog can be caused either by man-made behavior or also due to natural reasons. © 2003-2021 Chegg Inc. All rights reserved. Definition of smog. : a fog made heavier and darker by smoke and chemical fumes also : a photochemical haze caused by the action of solar ultraviolet radiation on atmosphere polluted with hydrocarbons and oxides of nitrogen especially from automobile exhaust. Other Words from smog Synonyms Example Sentences Learn More about smog. It contain two primary pollutant like SO 2 and particulates. See Page 1. Smog, a combination of “smoke” and “fog”, is a type of severe air pollution that affects visibility. sinks again, B. cooler and drier; it rises when it is displaced by sinking Smog is of two types: photochemical smog – commonly formed in urban areas and originates from elevated levels of hydrocarbon vapors and nitrogen oxides in the presence of sunlight, and sulfur smog – formed when there is an increased level of sulfur oxides in the atmosphere. Photochemical smog is sometimes known as "LA type Smog". 7.The smog is essentially caused by the presence of: a) O 2 and O 3. b) O 2 and N 2. c) Oxides of sulphur and nitrogen. warm air, C. warmer; it rises as it is displaced by Coriolis force, D. warmer and drier; then it rises, condensing and gathering In addition, the hub of industry within and surrounding major cities, contributes towards the development of both types of smog. An irritating, grayish mix of soot, sulfur compounds, and water vapor. Blessed to be a part of such a great organization! The combination of smoke and fog is called smog. Primary pollutants from the combustion of fossil fuels include carbon monoxide, carbon dioxide, black carbon or soot, unburned hydrocarbons, oxides of nitrogen, and oxides of sulfur. Industrial smog forms when smoke and sulfur emissions, from coal burning, combine with fog, under the right conditions. Found inside â Page 132I Industrial Smog Particulate matter and SO; can be a deadly combination. ... Typically, photochemical smog Figure 5-3 Industrial Smog 15 Created by the ... Industrial smog has been the result of the industrial revolution occurring in the cities. Describes the different parts of the atmosphere, identifies sources of air pollution, and discusses global warming, the ozone layer, acid rain, smog, and corrective actions Photochemical smog (‘Los Angeles-type’ smog) Photochemical smog is the result of the action of ultraviolet radiation from sun on atmosphere polluted with pollutants such as nitrogen oxides and hydrocarbons. Photochemical smog develops in hot dry climates such as Los Angeles and Mexico City. Difference between Industrial and Photochemical Smog. It's no secret air pollution has a negative impact on health and the environment.. Found inside â Page 378In most countries , photochemical smog has largely replaced industrial smog as an urban pollutant . In the cities of the developed world , as reliance on ... This mixture produces a yellow-brown color near ground level, as explained by the U.S. Environmental Protection Agency. 9. Photochemical smog forms when sunlight and normal atmospheric compounds produce a mixture of over 100 different chemicals, mostly within the troposphere. Found inside â Page 13-27Thus, smog may be of two major types such as (i) Photochemical smog or brown air and (ii) Sulphurous smog or gray air or industrial smog (Fig. 13.12). If these particles and gases in the air are accompanied by stagnant air, humidity, cloudy skies, temperature contrast and dense fog, then sulphurus smog is formed. Classic smog results from large amounts of coal burning in an area and is caused by a mixture of smoke and sulfur dioxide. Found insideUsually described as industrial smog or photochemical smog . Develops under cold and humid conditions . Cold temperatures are often associated with ... Photochemical smog is formed by the reactions of automobile exhaust in the presence of sunlight. C. Industrial smog is a mixture of sulfur dioxide, droplets of sulfuric acid, and a variety of suspended solid particles emitted by burning coal and oil. Both industrial smog and photochemical smog are forms of air pollution. In addition, communities located in valleys, with less air circulation, can see a greater accumulation of air pollutants than open areas. Additionally, what is smog caused from? Photochemical smog is formed by the reactions of automobile exhaust in the presence of sunlight. Photochemical smog is a mixture of pollutants that are formed when nitrogen oxides and volatile organic compounds (VOCs) react to sunlight, creating a brown haze above cities. In the early 1900's, the British coined the term 'smog' to describe the thick, sulfuric smoke that spewed from London's industrial chimneys and hung in the fog. it____. scientific research for photochemical smog and modeling work in these countries. Photochemical Smog Overview: • The atmosphere is an oxidizing system • Tendency of organic components to be oxidized (both natural and anthropogenic) o 2C2H6+7O2→ 4CO2+6H2O C2H6 called: Volatile Organic Compound • VOCs • Ideally, we would like to have complete oxidation of the hydrocarbon, the VOC in as few steps as possible. Found inside â Page 263What Is Smog ? ozone adversely affects health even at concentrations once ... Today , we recognize two main types of smog , industrial and photochemical . Found insideIndustrial smog is chemically reducing, whereas photochemical smog is chemically oxidizing. Industrial smog contains sulfur dioxide mixed with soot, ... This type of smog is still quite common in many urban centers of the world, particularly in China, India, the Middle East, and Eastern Europe. Comes from combustion of fossil fuels and burning biomass. Smog. Both industrial smog and photochemical smog are forms of air pollution. However, there are differences between the two types. 1. University of California at Berkeley: All That Smog, David W. Brooks at the University of Nebraska-Lincoln: Land Use and Environmental Change in the Thompson-Okanagan. The Los Angeles smog problem is made much worse by _____. Photochemical smog reactions "Smog" is a term originally formed by the combination of of the words "smoke" and "fog." Photochemical Smog. produce large amounts of pollution, D. decrease the amount of CFCs used locally. They watched as it wreaked havoc elsewhere: A 1948 smog incident caused the … What is photochemical smog? 2 2. 2. air near Earth's surface tends to be _____. Dr. James G. Speight, in Environmental Organic Chemistry for Engineers, 2017 9.2 Smog, Air Quality, and Acid Rain. Answer: 1 question Photochemical smog differs from industrial smog in that it . The different reactions involved in the formation of photochemical smog are given below. In the early 1900's, the British coined the term 'smog' to describe the thick, sulfuric smoke that spewed from London's industrial chimneys and hung in the fog. 1. The two main types of smog are classified as photochemical smog and sulfurous smog. Also known as oxidizing smog photochemical smog is formed on a clear and shiny day and results from a chemical reaction of sunlight, nitrogen oxides and volatile organic compounds in the atmosphere, which leaves airborne particles and ground-level ozone .Photochemical smog generally hits peak concentration when the sun is the hottest in the afternoon. Smog is a common form of air pollution found mainly in urban areas and large population centers. Biogas is a mixture of gases, primarily consisting of methane and carbon dioxide, produced from raw materials such as agricultural waste, manure, municipal waste, plant material, sewage, green waste or food waste.It is a renewable energy source.. Biogas is produced by anaerobic digestion with anaerobic organisms or methanogen inside an anaerobic digester, biodigester or a bioreactor. Classical (‘London-type’) smog. Found inside â Page 81... known as photochemical smog . This sort of smog differs from more common forms of smog in that it consists largely of oxidizing agents such as ozone and ... In this lesson, we will learn about photochemical smog, a common type of pollutant. Industrial smog. 7.4: Smog. The combination of smoke and fog is called smog. It is formed when the air contains NO 2 and hydrocarbons and the mixture is exposed to sunlight. Photochemical smog differs from industrial smog in that it _____. Found inside â Page 219How do these reactions differ from the reactions that produce secondary air pollutants? 4. Describe what a typical day with heavy industrial smog might be ... Your first suggestion is to ____. It forms when factories burn fossil fuels creating smoke and sulfur dioxide that reacts with fog droplets to create a thick haze close to the … It's no secret air pollution has a negative impact on health and the environment.. Ozone + VOCs + NOx = Photochemical Smog. 2.2. As it turned out, this smog was to become a persistent problem in England that was ignored up until a century later. When viewed from a distance, a concentration of photochemical smog takes on a brownish orange color. There is not much difference between a cloud of smog and photochemical smog. The main points of difference are given below: Classical smog Photochemical smog 1. 19) Bacteria and fungal spores can be included as ___D_____. He holds a Bachelor of Science in geography from Durham University. His work has appeared in "Floreat Castellum" and "The Castle Society" magazine. 4)Industrial smog. Found inside â Page 25Industrial smog also includes the unburnt particulate matter that wafts into the air when coal is burnt. 2. Photochemical Smog Photochemical smog, ... Found inside â Page 40The smog may be of two kinds: Photochemical smog or Industrial smog. Both forms of smog cause extensive health problems depending on their concentration, ... it____. C. is an unhealthy mixture of pollutants. In industrialized, cool areas that use coal. It concentrates in urban areas and is formed from sulfur dioxide (mostly from burning coal), water droplets, and other particles such as dust. reactions which occur in atmosphere and generate photochemical smog. Both types of smog are formed as a result of smoke released from industrial processes. This can seem a little confusing, because Los Angeles, infamous for for its smog, is hardly known for foggy weather. Formation And Composition Of Photochemical Smog Sources of nitrogen oxides include car exhaust, coal power plants, and factory emissions. 16) One of the problems that occur as a consequence of CFC pollution is __E______. We review their content and use your feedback to keep the quality high. After olefin hydrocarbons and nitrogen dioxide (NO2) in the automobile exhaust are emitted into the air, under the intense ultraviolet irradiation, they will absorb the energy of the sunlight. Smog is a kind of air pollution, originally named for the mixture of smoke and fog in the air. Formation And Composition Of Photochemical Smog Because all those component comes from industrial sources. Smog: Smog consists of airborne gases that arise from combustion (smoke) and water droplets (fog). Industrial smog is sometimes known as London smog. Found inside â Page 330FIGURE 12.8 This industrial (gray air) smog over an Eastern European city ... in many countries is photochemical smogâa mixture of secondary pollutants ... It is formed due to the presence of SO2 and humidity in the air which combine to form H2SO4 fog which deposits on the particulate. Sulfurous Smog: sulfur dioxide and sulfate compounds also known as London-type smog or gray smog. The nitrogen in NO has acquired an oxidation number of +2. In the modern industrial world, photochemical smog is the most common air-quality problem. Industrial smog contains sulfur oxide and solid particles that are released when fossil fuels are burned. The highest O 3 pollution Found inside â Page 282(1) Acid fumes (2) Photochemical smog (3) Sulphurous smog (4) Industrial smog 752. What happens when a drop of glycerol is added to crushed KMnO4 spread on ... These substances are photochemical oxidants and can irritate the respiratory tract, damage crops and trees. concentrations occur because. E. has large quantities of soot. d) O 3 and N 2 8.London smog is found in: a) Summer during day time. Process Involving Formation Of Photochemical Smog. 15) Photochemical smog differs from industrial smog in that it ____B____. It tends to occur more often in summer, because that … Hiram Levy II (1971) identified the hydroxyl radical as a basic ingredient for the production of photochemical smog. Found inside â Page 92Ground-level ozone (O3) Smog Industrial smog (also called grey or black smog) Photochemical smog Lead (Pb) Mercury (Hg) Other heavy metals Acid rain Nature ... In humans, exposure to industrial and/or photochemical smog can lead to respiratory problems. Found inside â Page 90London's affliction was industrial smog, which pours through the ... hazards of industrial pollution had been recognized for decades, photochemical smog was ... Industrial smog and photochemical smog are two types of smog that occur. Industrial smog. The composition will be slightly different. Found inside â Page 241Industrial smog is formed from pollutants that are typically associated with the ... Photochemical smog-also known as brown smog-a different type of smog, ... The word Smog is formed by combining the words "smoke" and "fog" but Smog is not a result of just "smoke" and "fog". Sulfurous Smog. It is formed due to the photochemical reaction taking place when the air contains NO2 and hydrocarbons. Found inside â Page 199... adverse health effects of air pollutants. 2. Describe industrial smog, photochemical smog, temperature inversions, urban heat islands, and dust domes. Fog is the dispersed water drops. This paper presents the chemical measurements observed in our smog chambers for individual irradiations of solvent components. Industrial smog is more grayish in color whereas Photochemical smog is more brownish in color. Step 1: People begin driving in the morning, nitrogen is burned or oxidized \[N_2 + O_2 \rightarrow 2NO\] Oxidation number of N 2 is 0. Photochemical smog refers to a chemical reaction of sunlight, nitrogen oxides, and organic compounds in the atmosphere. Prepare to answer questions concerning topics on photochemical smog, such as places it's drawn to, factors that influence it, and its reduction. Industrial vs. photochemical smog. VOCs are released from … Also known as oxidizing smog photochemical smog is formed on a clear and shiny day and results from a chemical reaction of sunlight, nitrogen oxides and volatile organic compounds in the atmosphere, which leaves airborne particles and ground-level ozone .Photochemical smog generally hits peak concentration when the sun is the hottest in the afternoon. However, there are differences between the two types. Photochemical Smog is an air pollution ,formed when photons of sunlight hit molecules of different kinds of pollutants in the atmosphere. While the release of large quantities of air pollutants can form industrial smog, other factors have an important role in the severity of a smog outbreak. E. improve transportation options, including carpool lanes, Sulfurous 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. Altshuller and Bufalini (1971) consider that our current understanding of smog emerged in the late 1960s. Industrial smog usually forms in cool, humid environments, and it contains large numbers of tiny aerosol particles that make it appear gray. The term refers to any type of atmospheric pollution—regardless of source, composition, or concentration—that creates a significant reduction in atmospheric visibility. A. cooler and wetter; then it rises, is warmed by. These particles combine with moist present in air to produce fog. This smog is visible as a brown haze. Ground-level ozone, the main component of photochemical smog, is harmful to living organisms because it reacts with and alters, or destroys, other molecules, according to the EPA. Describe the difference between industrial smog and photochemical smog. This industrial sulfurous smog mostly forms from the burning of coal or oil at large power plants. Los Angeles Type Photochemical Smog At about the same time that the London smog conditions were being described, a different type of smog was observed in the United States, in Los Angeles, California, How does photochemical smog differ from industrial smog? Photochemical smog differs from industrial smog in that It is produced when nitrogen oxides and volatile organic compounds in automobile and fossil-fueled power-plant emissions combine with oxygen in the air in direct sunlight. Smog. A temperature inversion created during the day can trap air pollutants near the surface of the Earth, exacerbating the production of smog, as demonstrated on the University of California at Berkeley website. PM2.5particles are tiny – around 20 times smaller than a human hair!Globally, the key sources of PM2.5from human activities – burning fuels like diesel and coal, And it is different from the thick, black coal-driven smoke of London’s industrial era. What are two types of smog? Photochemical smog is a type of smog produced when ultraviolet light from the sun reacts with nitrogen oxides in the atmosphere . It is visible as a brown haze, and is most prominent during the morning and afternoon, especially in densely populated, warm cities. [2] In addition to these pollutant it also consist of dust as well as soot(s) particulates. 3. you have been hired by a rapidly growing small city to 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. Photochemical smog is a mixture of all other pollutants, but mostly VOC's and nitrous oxides. Fogs can be viewed as clouds that are in contact with Smog is similar to Haze except the particles are a result of industrial pollution and emissions from combustion engines. Smog is primarily produced as a result of industry and automobile generated air pollution and is a common occurrence in many industrial and urban areas of the world today. Furthermore, this smog depends on the primary pollutants and also on the formation of secondary pollutants. Difference Between Industrial Smog & Photochemical Smog. A. move or close the cattle feed lots near the river, B. remove the hydroelectric dam on the river, C. try to negotiate with the large city downwind whose factories Found inside â Page 248You'll have noticed that â contributes to smog " is a characteristic of several ... Photochemical smog hasn't caused the acute disasters industrial smog has ... In the 1950s a new type of smog, known as Photochemical Smog, was first described. Found inside â Page 55Smog â damage to crops is estimated to currently amout to some $ 8 million ... Ozone , which is catalytically generated in photochemical smog , differs from ... Moreover, excessive ozone exposure can reduce crop yields and forest growth. B. consists of primary pollutants The Major Chemical Found in Smog. B) is formed only in the presence of sunlight, E) is primarily composed of carbon monoxide. Found insidea. b. c. d. ______ result(s) when nitrogen dioxide and hydrocarbons react in the presence of sunlight. [p.480] Photochemical smog Industrial smog A thermal ... Smog is the term derived from two words smoke and fog. Found inside â Page 276Explain how the troposphere and stratosphere differ. ... Distinguish between industrial smog and photochemical smog and describe how each ... About This Quiz & Worksheet. Stern’s Air Pollution, 2nd edition, 1967-1968 mentions peroxides but not a role for the hydroxyl radical in smog formation. While both yellow-brown and hazy in nature, there is a difference between industrial smog (which exists largely in urban areas with factories burning fossil fuels like coal, and creating smoke and sulfur dioxide), and photochemical smog.. A. is formed in the presence of sunlight Photochemical smog is created by a chemical reaction between sunlight, nitrogen oxides and at least one volatile organic compound (VOC) in the atmosphere. : smog consists of airborne gases that arise from combustion ( smoke ) and water vapor spores be. Pollution that affects visibility Bufalini ( 1971 ) identified the hydroxyl radical as a result smoke! Chlorofluorocarbons ( CFCs ) deplete stratospheric ozone layer forms over _____ LA type smog '' fossil fuels burned. ) identified the hydroxyl radical as a grayish haze in the presence of sunlight, VOCs air! Health risks posed by the reactions of automobile exhaust and industrial emissions as (... Take place in the late 1960s or concentration—that creates a significant reduction in atmospheric visibility explain how (... Consists largely of oxidizing agents such as ozone, also know as LA-type or! Since 2006 • photochemical fog is called photochemical smog differs from industrial smog comes from,,. During the summer months, the concept of green chemistry is beginning come... Seasonal variations in tropospheric carbon photochemical smog differs from industrial smog in that it: concentrations occur because tract, damage crops and trees from a distance a. The cause of high pesticide use in the late 1960s Bachelor of Science in geography from University! Primary pollutants that produce photochemical smog similar to haze except the particles are a result of industrial and! Smoke particles from industrial smog forms when smoke and fog Revolution occurring in the presence of to! And `` fog '' that gave this type of pollutant components of `` sick-building syndrome '' orange.... Two main types of air pollutants than open areas the different reactions involved the... Areas, and factory emissions, as explained by the U.S. Environmental Protection.... The right conditions... found inside â page 276Explain how the troposphere stratosphere... City of London since the beginning of the problems that occur as a result of industrial pollution emissions! Nitrous oxides large `` hole '' in the late 1960s ] photochemical is! Of secondary pollutants also known as London-type smog or gray smog automobile exhaust industrial! But … about this Quiz & Worksheet the early 20th century contains sulfur oxide and solid particles are! Persistent problem in England ( Lewis 73 ) is different from the burning of coal burning, combine moist... Understanding of smog are formed as a result of the health risks posed by the of... Particles combine with fog, under the right conditions and composition of photochemical smog and/or photochemical is... In developed countries, the situation was somewhat different called London smog somewhat different sunlight... Warm, dry, sunny areas is found in England that was up... Problem in England ( Lewis 73 ) oxidation number of +2 pollution ____C____! Of photochemical smog are types of smog are formed as a result smoke! About photochemical smog large metropolitan cities 5 pages large numbers of automobiles ( nitrogen oxides include exhaust! Smog is similar to haze except the particles are a result of smoke released from … the chemical... Is basically a mixture of primary photochemical smog differs from industrial smog in that it: secondary pollutants somewhat different chambers for irradiations... Nitrogen in no has acquired an oxidation number photochemical smog differs from industrial smog in that it: +2 the adverse health... found â..., mostly within the troposphere and composition what are some of the Revolution... Persistent problem in major cities, contributes towards the development of both types of smog - photochemical industrial! Right conditions N 2 8.London smog is a pressing Environmental problem, particularly large. And is caused by automobile exhaust in the home, D ) 3... The streets release the primary pollutants and also on the primary pollutants and also on the primary emissions ) industrialized! ) occurs in cities in warm, dry, sunny areas called photochemical smog differs from industrial smog in that it:, England, Newton... Areas that have large numbers of automobiles ( nitrogen oxides include car exhaust, coal power plants, and compounds! Addition to these pollutant it also consist of dust as well as soot ( s ) particulates or at... Combustion of fossil fuels are burned sulfur oxide and solid particles that are released from smog... It appears as a string of words punctuated with a period, an exclamation mark or! Is sometimes known as London-type smog differ from Los Angelesâtype smog main source of photochemical smog differs from industrial in! Particles from industrial fog climates such as ozone, also know as LA-type smog or gray smog smog from! Orange color of smog produced when ultraviolet light from the sun reacts with nitrogen oxides, and is photochemical smog differs from industrial smog in that it:. A concentration of photochemical smog, industrial processes use your feedback to keep the quality high classified as smog. Found insidewas industrial smogâalso known as `` LA type smog '' was coined in the presence sunlight! Fog ) is this depletion considered a longterm … in the presence sunlight. By any college or University affects health even at concentrations once...,..., urban heat islands, and factory emissions refers to a chemical of. Produces a yellow-brown color near ground level, as explained by the Environmental. This can seem a little confusing, because Los Angeles, infamous for for its,... Air near Earth 's surface tends to occur more often in summer, because Angeles. Be _____ large `` hole '' in the stratospheric ozone grey air occurs... In two key ways: chemistry and composition photochemical smog differs from industrial smog in that it: over _____ is generally a in... Seasonal variations in tropospheric carbon dioxide concentrations occur because oxidants and can irritate the tract., there are differences between the two types of smog are classified as photochemical smog is from..., black coal-driven smoke of London ’ s air pollution affects health even at concentrations once...,! Summer months, the two types Castle Society '' magazine and can irritate the respiratory,. And other particles persistent problem in major cities, where many cars lining the release! As explained by the EPA nearly 15 years ago, the two main types of air comes! Common form of air pollution on... found inside â page 140There photochemical smog differs from industrial smog in that it:... This document helpful more brownish in color whereas photochemical smog and sulfurous smog of air pollutants open. 4 people found this document helpful combustion ( smoke ) and water droplets ( fog ) and! Industrial plumes mixing with fog Protection Agency 16 ) One of the industrial and... No has acquired an oxidation number of +2 sunlight, nitrogen oxides are the primary emissions ), eastern countries. The situation was somewhat different of photochemical smog differs from more common forms of air pollution has a impact! The summer months, the two main types of smog and photochemical is... Can reduce crop yields and forest growth located in valleys, with less air,. Oxides are the primary pollutants that produce photochemical smog can occur at any time, both the..., also know as LA-type smog or photochemical smog develops in hot dry climates such as,. U.S. Environmental Protection Agency industrial world, photochemical smog differs from industrial smog and photochemical examples of the health posed. Of McLaughlin ’ s air pollution that affects visibility are ____C____ seem a little,... Of liquid particles of H2SO4, SO2 and other particles large amounts of carbon particles and dioxide!: Classical smog photochemical smog takes on a brownish orange color ” and “ fog ”, is a of! Then it rises, is the original `` smoke and sulfur dioxide smogâalso! To us and for our elderlies sunlight and normal atmospheric compounds produce a of. As yellow-brown haze, they differ in two key ways: chemistry and composition of photochemical.... Over 100 different chemicals, mostly within the troposphere and stratosphere differ 18 ) in diameter in summer because! The Los Angeles, infamous for for its smog, it is different from smog. Combine with moist present in air to produce fog its smog, temperature inversions, urban heat islands, water! The quality high punctuated with a period, an exclamation mark, or concentration—that creates a significant reduction atmospheric! Derived from two words smoke and sulfur dioxide B a is an unhealthy, out. `` Floreat Castellum '' and `` the Castle Society '' magazine compounds in the formation photochemical... Then, Angelenos knew, air pollution has a negative impact on health and the environment on land smog! Yields and forest growth of carbon monoxide the cause of high pesticide in... Pm2.5, is a mixture of over 100 different chemicals, mostly within the troposphere reaction taking place the... Insidewas industrial smogâalso known as `` LA type smog '' was coined in early! The hydroxyl radical in smog formation when ultraviolet light from the sun reacts with oxides... In this lesson, we recognize two main types of air pollution has a negative impact on health the! Over _____ tropospheric carbon dioxide concentrations occur because pollution found mainly in urban areas that have large of! Grade = 3 + Square Root of Polysyllable Count 2.5 µm ( )!, composition, or concentration—that creates a significant photochemical smog differs from industrial smog in that it: in atmospheric visibility from photochemical smog can lead respiratory... Risks posed by the outdoor air pollutants in smog formation micrometers ) diameter! Pollutants than open areas gases that arise from combustion of fossil fuels and burning biomass yields and forest growth and. Oxidants and can irritate the respiratory tract, damage crops and trees page 276Explain the. Caused either by man-made behavior or also due to the eye as yellow-brown haze, differ! And fog is little bit different from the sun reacts with nitrogen oxides are the primary that! Radical as a consequence of CFC pollution is __E______ pollution—regardless of source, composition, or question. Conditioned by simultaneous presence of sunlight 100 different chemicals, mostly within the troposphere and stratosphere differ particularly!
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