Smog, as defined by Dictionary.com, is fog that has become mixed and polluted with smoke. The word smog was coined in 1905 in a newspaper report of a meeting of the Public Health Congress, in which Dr. H.A. des Voeux gave a paper entitled "Fog and Smoke." On July 26, 1905, Dr. des Voeux was quoted in the Daily Graphic stating, " it required no science to see that there was something produced in great cities which was not found in the country, and that was smoky fog, or what was known as `smog.'"
Photochemical Smog is made up of primary and secondary pollutants. Primary pollutants are released into the environment by vehicles, industry and natural environments. Primary Pollutants Industry Related Vehicle Related Natural Processes Sulfur Dioxide Hydrocarbons Sulfur Oxides Nitrogen Dioxide Nitric Oxide Carbon Dioxide Carbon Monoxide Carbon Monoxide Volcanic Dust Hydrogen Sulfide Smoke Secondary pollutants form when primary pollutants react in the atmosphere, such as the presence
Photochemical Smog Historically, the term smog referred to a mixture of smoke and fog, hence the name smog. The industrial revolution has been the central cause for the increase in pollutants in the atmosphere over the last three centuries. Before 1950, the majority of this pollution was created from the burning of coal for energy generation, space heating, cooking, and transportation. Under the right conditions, the smoke and sulfur dioxide produced from the burning of coal can combine
Smog is a problem around the world, but in the city of Los Angeles, it is especially bad. Los Angeles has been dealing with smog for decades, and to understand it, there needs to be an understanding of what smog is. Smog is one of the many pollutants that we as humans put into our atmosphere, and it is especially persistent in Los Angeles. There is a history of smog in LA, with the first instances of smog being seen as a problem starting in 1943. At the time, the causes of smog were not known
Definition of Photochemical Smog Photochemical smog is an environmental problem that develops when primary pollutants interact under the presence of sunlight to produce a mixture of many different and hazardous chemicals known as secondary pollutants. Photochemical smog is formed by the reactions of automobile exhaust in the presence of sunlight. The term “smog” is derived from the words smoke and fog. It is also known as Los Angeles smog. It is a brownish-black-haze particularly on still sunny days
China is Choking On Smog As a world’s most populous country, China, is experiencing breakneck growth in the process of industrialization and urbanization, with a roughly rate of 10 percent on GDP each year for the last three decades (World Bank). Now it is choking on something which is not only suffocating the lifeline of this country, but also shrinking those GDP for decades. That is the smog, the other Chinese landmark you can see from space through NASA satellite picture besides the Great Wall
What is smog? You may be wondering this question after you look at pictures of Los angeles, places in Japan, or any busy cities. Well smog is a brownish fog that is formed from combustion or the production/burning of certain fossil fuel. Smog got its name in the early 1900’s to describe a combination of smoke and fog. The most common smog we have today is photochemical smog. This type of smog forms when sunlight reacts with nitrogen oxides and one or more volatile organic compounds (VOC) in the
Causes of Photochemical Smog The initial step in photochemical reactions is the absorption of a photon by an atom, molecule, free radical or ion. The result of this absorption is strongly dependent on the energy, in other word the wavelength of the photon. Visible and ultraviolet portion of the light is required to start the photochemical reactions. The absorption can generate dissociation, internal rearrangement, flourescence, or excited species. Photochemical smog can occur in any environment where
and energy forms. Pollution can also occur naturally, and there are man-made pollutants as well. Industrial pollution does the greatest damage to the natural environment. One popular historical occurrences of massive industrial pollution is the Great Smog of 1952 in London, making the Industrial Revolution as the triggering point of harmful industrial pollution as people know it today. The setting up of many factories burning fossil fuels for production has led to unprecedented levels of air pollution
odorless gas comprised of three oxygen atoms. Ozone is found naturally in the earth 's stratosphere (the Ozone layer) where it absorbs the sun 's harmful rays. But ozone closer to the earth 's surface is dangerous, and more commonly referred to as smog (Fresno Metro Ministry). Moreover, Particulate Matter (PM) is a generic term used to describe a mixture of fine airborne solid particles and liquid droplets that are present in the air. These tiny particles are invisible to the naked eye, but can cause
from community and city centers, Americans are forced to drive more often and greater distances. As we sprawl more, we drive more. And as we drive more, we pollute more. Vehicle smog is one of the main pollutants increased by sprawl. Smog looks and smells bad. The word itself sounds bad. In the short term, living with smog-filled air causes burning eyes, throat irritation and difficulty breathing. Over the long term it can lead to chronic lung disease, asthma attacks, debilitation, even d... .
“Baoding, Shijiazhuang, and Handan in Hebei province, the cities with the worst air pollution, each reported more than 30,000 deaths in 2013 related to smog”(Yan). This environmental problem happening in China is also a concern to Naomi Klein, an award-winning journalist, author, and syndicated columnist. In her book, This Changes Everything. She claims that the capitalism has a strong relationship with climate change, which that our government and the political system are leading us toward climate
Climate Change is a “Wicked Issue” Climate Change is any substantial change in climate that lasts for an extended period of time. One contributor to current climate change is global warming, which is an increase in Earth’s average temperature. Plants and animal species throughout the world are being affected by rising temperatures. Many plants are flowering earlier now than they once did; animals, such as the yellowbellied marmot, are emerging from hibernation earlier; and many bird and butterfly
Jiawen Cheng Synthesis Essay Government Responsibility It’s become a common sight to behold. In other cities, popular must have fashion items include scarves, sunglasses and perhaps a striking pair of shoes. In Beijing however, surgeon masks have been “in style” for years and more recently more people have been sporting a can of fresh air; from Canada. The pollution has gotten so bad that people are willing to pay as much as 22.95 U.S dollars for a 10-liter bottle of “Pure Premium Oxygen’. “[The]
Destruction of the Earth's Atmosphere as a Result of Air Pollution Introduction With the great concern surrounding the destruction of the earth’s atmosphere due to air pollution, the immediate and direct harm caused to the human body is often over shadowed. While many are aware that our careless use of hazardous chemicals and fossil fuels may leave the planet uninhabitable in the future, most over look the fact that they are also cause real damage to our bodies at this moment. Such pollutants
pollution in our daily lives, the breaths we take can soon be of clean, ... ... middle of paper ... ...anAir2000. CleanAir2000. Phoenix, AZ: US. 1998. www.cleanair2000.org Gulbinas, Vilija. “On the Road to Recovery: an Angelino’s Guide to Smog”. Los Angeles, CA: US. 1998. www.ben2.ucla.edu/~vgulbina Arizona Clean & Beautiful. “Arizona Clean & Beautiful”. Phoenix, AZ: US. 1998. aspin.asu.edu/acb/ Natural Resources Defense Council. “Danger in the Air”. Washington, DC: US. 1998
have been prosperity in the economic point of view, but as we can see now, in the environmental point of view it was not prosperous at all. The beast attacks in London: During the winter of 1952-1953, London came face to face with the “heaviest winter smog episode known to men.” (Environmental disasters) During the weeks leading to this even London had been experiencing colder than usual weather. Because of the cold weather, households were burning more coal to keep their families warm. This caused “additional
is being called today. Air Pollution in China is a serious problem, it poses as its own threat. Many sources have said that the aftermath of this isn't good. Chinese cities often seem to be wrapped in a toxic gray shroud, which is a dark blanket of smog above the polluted area (Kahn). Rates of pollution have increasingly grown in a year, nearly 47% of chinese say it is the biggest dilemma in the country of China. These condition are very hazardous for their citizens, harming their overall health (Desilver)
Air Pollution in Mexico City Mexico City adds an estimated one million new residents each year, resulting in one million new aggravates to the city’s already abominable air quality (Collins, 119). Over the span of a generation, Mexico City’s air has gone from being one of the world’s cleanest to one of the world’s most polluted, as well as the most polluted in its country. The average visibility in the city is down from almost 100 km in the 1940s to only 1.5 km today, removing the once beautiful
Quality Planning and Standards, certain areas were and still are designated as "nonattainment" areas. These areas are regions which do not meet all the National Ambient Air Quality Standards [NAAQS] for ground-level ozone, a primary constituent of smog (USEPA-- National Air--Ozone and Carbon Monoxide 1). What are air pollutants and what is their composition? According to studies done by Brigham Young University on air pollution, air pollutants are made up of sulfur dioxide, carbon monoxide, hydrocarbons