The main ozone depleting substances are chlorofluorocarbons (CFCs), hydrochloroflurocarbons (HCFCs), carbon tetrachloride; methyl orange and halogen ions (brominated fluorocarbons). The depletion of the ozone layer has led to a number of effects associated with various
Automobiles and energy production use fossil fuels. The burning of fossil fuels release carbon dioxide into the air. Carbon dioxide absorbs infrared energy that is emitted from the Earth and prevents it from being sent into space. The infrared energy is trapped in the atmosphere and heats the Earth. In a year 21.3 billion tonnes of carbon dioxide is produced.
Water is used in photosynthesis by plants, which produce oxygen - this reaction is vital for the earth as the oxygen produced is used by humans to breath Water is used in coal powered electricity stations. The coal is burned which boils the water. The water becomes steam, which turns the turbine, activating the generator, then producing the electricity. Because water can also exist as a vapor it can be stored into the atmosphere and be delivered as rain across the planet. Water makes up 90% of the earth’s atmosphere and the other 20% is land Our bodies are about 60 percent water [source: Mayo Clinic].
Causes: There are natural as well as human-made causes of the greenhouse effect -The natural causes of the Green house effect are the emissions of gases like nitrous oxide, carbon-di-oxide, methane, ozone and water vapor and carbon-di-oxide itself is main responsible for the Green house effect because the infrared radiation is trapped into the atmosphere by various gases. -One of the man-made causes of the Green House effect is deforestation. Deforestation increases the amount of carbon-di-oxide in the atmosphere. - Industries are also a major cause of the Greenhouse Effect because the burning of fossil fuels, oil, coal and gas and these materials are used increasingly and rampantly in Industries. - Another man-made causes of the increase in the Green house effect due to the emission of such gases are any all electrical appliances and some processes of the cement manufacturing industries also act as a cause towards the Greenhouse effect.
EFFECTS & HAZARDS OF COMBUSTION A combustion reaction is a major class of chemical reactions. Combustion usually occurs when a hydrocarbon reacts with water to produce carbon dioxide and water. In the more general sense, combustion involves a reaction between any combustible material and an oxidizer to form an oxidized product. Combustion is an exothermic reaction, so it releases heat, but sometimes the reaction proceeds so slowly that a temperature change is not noticeable. Good signs that you are dealing with a combustion reaction include the presence of oxygen as a reactant and carbon dioxide, water and heat as products.
In partial oxidation plants with oil-fired auxiliary boilers the reduction of SO2 emissions can be achieved by using low sulphur fuel oil. From steam reforming plants with a fired primary reformer, emissions into air come from the various sources such as flue-gas from the primary reformer, vent gas from removal of carbon dioxide, breathing gas from oil buffers (seals / compressor) and also from non-continuous emissions (venting and flaring) (Ave, Evan Nieuwenhuyse, 2000). For pollution related to water, it may occur due to process condensates or due to the scrubbing of waste gases containing ammonia under normal operation. Process condensate is found in the condensation section prior to the carbon dioxide removal, of the order of one meter cube per ton of ammonia produced. Without treatment this condensate can contain up to 1kg of ammonia and 1kg methanol per m3.
Acetylene gas is shipped in special cylinders designed to keep the gas dissolved. The cylinders are packed with porous materials (e.g. kapok fibre, diatomaceous earth, or (formerly) asbestos), then filled to around 50% capacity with acetone, as acetylene is acetone soluble. This method is necessary because above 207 kPa (30 lbf/in²) (absolute pressure) acetylene is unstable and may explode. There is about 1700 kPa (250 psi) pressure in the tank when full.
Power stations, factories and cars all burn fuels and therefore they all produce polluting gases. Some of these gases (especially nitrogen oxides and sulphur dioxide) react with the tiny droplets of water in clouds to form sulphuric and nitric acids. The rain from these clouds then falls as very weak acid - which is why it is known as "acid rain". The release of sulphur dioxide can also occur naturally when a volcano erupts. How acidic is acid rain?
April 23, 2015 The Effects of Pollution and Global Warming on The Earth Global warming, pollution, and greenhouse gases are all controversial topics that have been written about, studied, and discussed for several years. But what does global warming, pollution, and greenhouse gases have to do with you? Well, global warming is the gradual increase in the overall temperature of the earth's atmosphere, which is caused by pollution and greenhouse gases. Pollution and greenhouse gases are any type of harmful or poisonous substance that is put out into the world. “People think the Earth is so big that we cannot hurt it” (Gore 456).
A : Air pollution is both natural and human-based. Natural air pollution is caused by phenomenon such as volcanic eruption, decomposition, and radioactive materials. Volcanic eruptions will send tons of sulphur dioxide and ashes into the atmosphere where it will combine with water particles to form acid rain, while during decomposition, bacteria will release methane and carbon dioxide into the air when it feeds on decaying organic matter. B : That is true. Meanwhile, human activities or anthropogenic sources also cause air pollution.