what is the difference between industrial smog and photochemical smog?
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Industrial smog comes from, clearly, industrial processes. It concentrates in urban areas and is formed from sulfur dioxide (mostly from burning coal), water droplets, and other particles such as dust. Photochemical smog is a mixture of all other pollutants, but mostly VOC's and nitrous oxides.
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The main difference between the two processes is that in the photoelectric effect, the electrons are emitted to the space whereas, in photovoltaic effect, the emitted electrons directly enter a new material.
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What is photochemical smog? 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. It tends to occur more often in summer, because that is when we have the most sunlight.
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Chemically, peroxide is H2O2 while bleach is a basic solution of NaOCl. ... H2O2 (sometimes referred to as an oxygen bleach), while acting more slowly and being more expensive, does not produce organochlorine compounds, there is no danger for chlorine gas formation, or other respiratory problems.
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Secondary pollutants, such as ozone, are formed when primary pollutants undergo chemical reactions in the atmosphere. Photochemical smog, as found for example in Los Angeles, is a type of air pollution derived from vehicular emission from internal combustion engines and industrial fumes.
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The key difference between green chemistry and environmental chemistry is that the green chemistry is a chemical technique whereas the environmental chemistry is a discipline. Green chemistry is waste management. But it includes the management of waste which is produced during a certain chemical process.
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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. It tends to occur more often in summer, because that is when we have the most sunlight.
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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). ... Smog is a very harmful kind of air pollution.
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Distinguish between classical smog and photochemical smog. ... Classical smog is a mixture of sulfur dioxide and coal smoke with fog. Photo chemical smoke is a precipitate in the reaction of the nitrogen oxide and other chemical compounds in Sunlight.
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Photochemical smog, which is also known as “Los Angeles smog,” occurs most prominently in urban areas that have large numbers of automobiles. It requires neither smoke nor fog. This type of smog has its origin in the nitrogen oxides and hydrocarbon vapours emitted by automobiles…
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Since industrial emissions are one of the major causes of air pollution, the pollutants can be controlled or treated at the source itself to reduce its effects. For example, if the reactions of a certain raw material yield a pollutant, then the raw materials can be substituted with other less polluting materials.
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Ozone is made up of ordinary oxygen, just like what we breathe. The only difference is that ozone is made up of three oxygen atoms, while the stuff we breathe (molecular oxygen) is made up of only two atoms. Solar rays high in the atmosphere convert O2 to O3.
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What is the difference between primary air pollutants and secondary air pollutants? ... Primary are emitted directly into the air from a specific source while secondary are not emitted directly from a source but are formed in the atmosphere. criteria pollutants are emitted in large quantities by various sources .
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Photochemistry is the branch of chemistry concerned with the chemical effects of light. Generally, this term is used to describe a chemical reaction caused by absorption of ultraviolet (wavelength from 100 to 400 nm), visible light (400–750 nm) or infrared radiation (750–2500 nm).
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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.
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Ozone at ground level is a harmful air pollutant. Are ozone and smog the same thing? While the two terms are often used interchangeably for general use, smog is more complex. Smog is primarily made up of ground level ozone combined with other gases and particle pollution.
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Air pollution is a mixture of solid particles and gases in the air. Car emissions, chemicals from factories, dust, pollen and mold spores may be suspended as particles. Ozone, a gas, is a major part of air pollution in cities. When ozone forms air pollution, it's also called smog. Some air pollutants are poisonous.