A device in the exhaust system of a motor vehicle, containing a catalyst for converting pollutant gases into less harmful ones. A catalytic converter is a device that uses a catalyst to convert three harmful compounds in car exhaust into harmless compounds. The three harmful compounds are: * Hydrocarbons (in the form of unburned gasoline) * Carbon monoxide (formed by the combustion of gasoline) * Nitrogen oxides (created when the heat in the engine forces nitrogen in the air to combine with oxygen) Carbon monoxide is a poison for any air-breathing animal. Nitrogen oxides lead to smog and acid rain, and hydrocarbons produce smog. In a catalytic converter, the catalyst (in the form of platinum and palladium) is coated onto a ceramic honeycomb or ceramic beads that are housed in a muffler-like package attached to the exhaust pipe.
The effects of gasoline engines have taken its toll on the environment. They contribute heavily to the current pollution of the air that we breathe. The emissions from gasoline cars help to produce greenhouse gases. As stated by the United States Environmental Protection Agency greenhouse gases are gases that trap heat within Earth’s atmosphere. Carbon dioxide is one of the main elements which trap heat.
The other source is man-made activities. Man-made activities include: emissions from electric utilities burning fossil fuels, such as coal-burning fossil fuels, automobiles, and factories ("Acid Rain." National Geographic). In the United States, roughly two-thirds of all sulfur dioxide and one-fourth of all nitrogen oxides come from electric power generation that relies on burning fossil fuels, like coal (“What Is Acid Rain?"). Acid Rain Components and pH Acid rain is formed by the combination of rain water with certain components such as carbon dioxide (CO2), sulfur dioxide (SO2), nitrous oxides, and other chemicals.
Pedram Ghodrati Essay Three Writing 122 Air Pollution in Tehran An easy way to define air pollution, anything harmful that goes to the air, makes air pollution. Humans cause 90% of air pollution. The largest contributor to air pollution is the burning of fossil fuels such as gas and coal. The accumulation in the atmosphere of substances can also cause air pollution which, in sufficient concentrations, endanger human health or produce other measured effects on living matter and other materials. Other major factors that make air pollution problem worst include: power and heat generation, the burning of solid wastes, industrial processes, and, especially, transportation.
It is a toxic gas with a pungent, irritating smell. Quantitative: Density: 2.63 g/cm³Molar mass: 64.066 g/molBoiling point: -10° C | Burning Coal to generate Electricity Mining and refining of Minerals Smelting Combustion of Fossil Fuels Volcanic Eruptions | Once in the atmosphere, sulfur dioxide reacts with more oxygen to produce sulfur
Atmosphere Issue SCI/275 August XX, XXXX University of Phoenix Atmosphere Issue There are several things that can be labeled an atmosphere issue from car exhausted to cigarette smoke all of these issues pollute the air we breathe everyday effect our environment as well as our health. These pollutions have lasting effects on the world and the people who live in this world from many years and decades to come. Through science and the technology we have today we are able to see how these pollutions have an impact on the world we live in unlike any other time in history. One outdoor atmosphere issue is car exhausted that pollutes the earth’s atmosphere. Car exhaust causes pollution such as carbon dioxide which is caused from the burning of fuel.
Explain how it works Coal is a chemically complex fuel. Gases are given off when it is burned and “fly ash”, which are particles of ash, are released. The sulphur in coal combines with oxygen to form sulphur dioxide, which can be a major source of air pollution if emitted in large enough quantities. When burned, coal is used to produce electricity and heat through combustion. 4.
Indirect pollutants can be a lot of things, my main point is automobiles. The pollute the air by releasing unburnt fumes into the air. Beings there is so many vehicles on the roads today there is a lot of pollution. 2 The chemical with the lowest acceptable concentration is Aldrin and Dieldrin The chemical with the highest acceptable level of concentration is Chlorine 3 The water that come from our faucets comes from a well. It is softened by a water sofener and is then sent through Copper pipes to various outputs in my home.
Natural gas is primarily composed of methane; the main products of combustion of natural gas are carbon dioxide and water vapor; same compounds that are exchaled when breathing. Coal and oil are composed of much more complex molecules with higher carbon ratio and higher nitrogen and sulfur contenents. When combusted, coal and oil release a higher level of harmful emissions that are dangerous to the environment. Coal and fuel oil release ash particles on the environment that are substance that do not burn, instead, it was carried into the atmosphere and contributes to the pollution. Burning natural gas releases a very small of those gasses that are harmful for the environment and contributes pollution to the surroundings.
The main differences between diesel and gasoline are as follows: “a) A diesel Engine takes air into the cylinder and compresses it. Fuel is then injected directly into the cylinder. The heat of the compression lights the fuel spontaneously. A gasoline engine takes in a mixture of gas and air. The fuel and air are mixed outside of the cylinder; once they are both injected they require a spark to ignite.