Environmental protection Environmental protection is the main problem facing humanity nowadays. Ten years ago the world “ecology” hardly meant anything for the majority of people‚ but today we can’t help bearing it in our minds. It has happened because of the growing effect of the rapid industrial development of the natural world‚ which has negative features of its own. As a matter of fact the state of environment has greatly worsened of late. There is no doubt that soil‚ water and
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EC 307: Resource & Environmental economics Unit 6: Air Pollution Lecturer: Dr. Ricardo Gonzalez gonzalez_r@usp.ac.fj Room S239‚ School of Economics‚ Laucala Campus‚ USP‚ Suva‚ Fiji Islands. Introduction • Both consumption and production of energy produce a considerable amounts of air pollution. – – – – – – CO2 CO SO2 NOx PM VOC (Carbon dioxide) (Carbon monoxide) (Sulphur Dioxide) (Nitrogen oxides) (Particulate matter) (Volatile organic compounds‚ e.g.‚ CH4) EC307
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Activated Carbon Activated Carbon is the best general use adsorbent to remove/reduce a lot of organic and some inorganic contaminants found in different liquid and gas products. Activated carbon has the unique ability to adsorb a wide range of compounds from both the liquid and gas phase. This adsorptive feature is responsible for removing contaminants from water and other substances where the adsorbent material is added. Activated Carbon features a highly crystalline form with a wide surface
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Carbon steel is steel in which the main interstitial alloying constituent is carbon in the range of 0.12–2.0%. The American Iron and Steel Institute(AISI) defines carbon steel as the following: "Steel is considered to be carbon steel when no minimum content is specified or required for chromium‚cobalt‚ molybdenum‚ nickel‚ niobium‚ titanium‚ tungsten‚ vanadium or zirconium‚ or any other element to be added to obtain a desired alloying effect; when the specified minimum for copper does not exceed 0
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Assignment 1 – Environmental Footprint TABLE A. Ecological Footprint Footprint Results (Answers to the following 2 questions will be given upon completion of footprint) If everyone lived like you‚ how many planet Earth’s would we need? 5.6 To support your lifestyle‚ how many productive global acres area needed? 25.7 Ecological Footprint Breakdown (Values can be obtained by scrolling over pie chart generated at completion of footprint) Percent of emissions from Food 31
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"A carbon fiber is a long‚ thin strand of material about 0.005-0.010 mm in diameter and composed mostly of carbon atoms. The carbon atoms are bonded together in microscopic crystals that are more or less aligned parallel to the long axis of the fiber. The crystal alignment makes the fiber incredibly strong for its size. Several thousand carbon fibers are twisted together to form a yarn‚ which may be used by itself or woven into a fabric. The yarn or fabric is combined with epoxy and wound or molded
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tropical storm that the people of the United States thought wouldn’t do any damage. On August 28‚ 2005‚ cities in southern Louisiana and Mississippi started to demand a mandatory evacuation‚ but numerous people were stranded with no form of transportation or anywhere to go. Thousands were left waiting to see if Katrina would really strike as the weather stations had predicted. “That day‚ the National Weather Service predicted that after the storm hit‚ ‘most of the [Gulf Coast] area will be uninhabitable
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impact on greenhouse gas emissions. It has been claimed that an Australian carbon tax will have no significant impact on the level of greenhouse gases in the earth’s atmosphere. This claim has been made on two bases. Firstly that it is unlikely to succeed in significantly reducing Australian greenhouse gas emissions and secondly‚ that even if these emissions were to stop completely this would have no useful effect on world greenhouse gas emission rates. Critics of a carbon tax for Australia argue
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Carbon Fiber report Table of Contents Introduction 3 Historical events of Carbon fiber 3 Properties 4 Applications 4 Conclusion 5 Bibliography 6 Introduction There are a lot of new materials that has emerged and been used by engineers and scientists such as Aerogel‚ Metal foam‚ Bioplastic‚ Carbon fiber‚ Graphene and others. This is helping engineers build all new types of machines and instruments such as touch screen mobiles‚ automobile sensors‚ computers‚ planes and a lot more. This
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living organisms. It can also damage the natural environment. Air pollution causes depletion of ozone in the stratosphere which endangers human health as well as the Earth’s ecosystems. Air pollutants can be in the form of solid particles‚ liquid droplets‚ or gases. They could be natural or man-made. Pollutants can be classified as either primary or secondary. Substances which are directly emitted due to certain processes like ash from a volcanic eruption‚ or carbon monoxide gas from a motor vehicle
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