Automobile Emissions Control Abstract - The Automobile emissions control focus on the different types of technologies that have been introducing from early 1960’s to reduce the air pollution. They describe the different control methods involved in all the devices employed for the purpose of controlling pollution. This paper entails the information of impact of using these control techniques and devices. The detrimental effects of pollutants from automobile emissions on environment
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Discussion Question 1 •Resource: Emissions Calculator Web site •Due Date: Day 2 [Main forum] •Go to the Emissions Calculator Web site at http://airhead.cnt.org/Calculator/?sid=a743a150a5f5ff4c72817e723b7c8c14 •Fill out the survey to the best of your knowledge to calculate the total pounds of air pollution your household emits. •Post a response to the following: What was your highest contributor? What can you do to lower your total? What is your greatest challenge in lowering your total
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Atomic Emission Spectroscopy Dr M. Al-Harahsheh Comparison: Flame and Plasma atomization methods • Excitation and atomization for absorption: – Traditionally based on • • • • • • 1) 2) 3) 4) 5) 6) 7) 8) flame Electrothermal arc and spark & Plasma find important application ICP is the most important but excitation for emission spectrometry offers increased atomization/excitation Lower inter-element interference due to high T emission from multiple species
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Greenhouse gas emission What is greenhouse gas? A greenhouse gas is a gas in an atmosphere that absorbs and emits radiation within the thermal infrared range. Many greenhouse gases occur naturally‚ such as water vapor‚ carbon dioxide‚ methane‚ nitrous oxide‚ and ozone. Others such ashydrofluorocarbons (HFCs)‚perfluorocarbons (PFCs)‚ andsulfur hexafluoride (SF6) result only from human industrial processes. Greenhouse gases act like a blanket around Earth‚ trapping energy in the atmosphere and causing
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Ju Young – Arctic Ice Investigation ****************************************************************************************** Research Question: How do greenhouse gas emissions give an impact to the Arctic sea ice? Hypothesis: 1. A statement that predicts what will happen. Use the structure: ‘If…then…because…’ 2. For the ‘because’ part you need to give scientific reasoning so after you have done your research‚ state in parentheses ( ) the author of the source that helped you decide on your
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Absorption & Emission of Light Stimulated Absorption & Emission‚ Spontaneous Emission E2 Incident radiation hν hν Emitted & transmitted radiation E1 Resonance condition E2-E1=hν • Rate of stimulated emission is: −dN1/dt = N1B1->2 ρ(ν) • Rate of absorption is the sum of the rated due to stimulated emission and spontaneous emission: −dN2/dt = N2B2->1 ρ(ν) + N2A2->1 where B1->2 is the Einstein transition probability for induced absorption‚ B2->1 is the Einstein transition probability
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Carbon Emission and it’s Issues Recently‚ the amount of carbon emissions reached 40 billion tons. This is a record high‚ and is very damaging for Earth and humans alike. Carbon emission is a serious issue that can affect all of us in the near future. It is very harmful to the environment‚ but can also be delayed. Carbon emission is the total amount of carbon dioxide that are released in the air. There are natural and unnatural reasons for this. Nature‚ releases carbon dioxide‚ one of the most common
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Radon IP-definición Radon gas is a radioactive gas that occurs naturally in the environment‚ mainly in the soil. It is present in uranium rich rocks and escapes into the air through cracks in the rocks. It is colorless‚ odorless‚ and tasteless. IP- descripcion funcion Radon can be a potential health hazard if it seeps in large amounts into your house. Long-term exposure to Radon can lead to cancer. (IS-comparación) Smokers face higher health risks than non-smokers from Radon contamination. (IS-contraste)
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Percent of emissions from Food 12% Percent of emissions from Shelter 8% Percent of emissions from Mobility 4% Percent of emissions from Goods 36% Percent of emissions from Services 41% TABLE B. Household Emissions Household Emissions Results (Answers can be found in bar graphs following completion of calculator) What are your current household emissions? 507‚292 What are the U.S. average household emissions? 62‚250 What was your reduced emissions? 83‚716 Household Emissions Savings
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Carbon Emissions and Global Warming Carbon dioxide is released into the atmosphere every time we burn fossil fuels such as gas‚ coal or oil. In a natural carbon cycle‚ carbon dioxide is re-absorbed by plants and trees. However‚ the rate in which we are burning fuels is way too fast for trees and plants to absorb and convert into breathable air. In addition to that‚ many rainforests have been lost because of the cutting down of trees‚ which doesn’t help in the already existing problem. The effect
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