What is Pollution Prevention? Pollution is the contamination of air‚ soil‚ or water by the discharge of harmful substances. Pollution prevention is the reduction or elimination of pollution at the source (source reduction) instead of at the end-of-the-pipe or stack. Pollution prevention occurs when raw materials‚ water‚ energy and other resources are utilized more efficiently‚ when less harmful substances are substituted for hazardous ones‚ and when toxic substances are eliminated from the production
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Dangers Of Smoking http://www.gumauctions.com/article/140/Dangers-Of-Smoking/ ------------------------------------------------- Almost everybody knows that smoking is bad for the health. Images of blackened lungs line school hallways and hospital waiting rooms‚ but despite this people continue to take up smoking. This may have to do with the pervasive romantic image of smoking -- an image that has nothing in common with reality. There are many ways to take tobacco. You can chew it‚ inhale it through
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Air Pollution There are three main types of pollution: air‚ water‚ and noise. My Speech will be focusing mainly on air pollution. Generally any substance that people introduce into the atmosphere that has damaging effects on living things and the environment is considered air pollution. Air pollution is a major environmental risk to health. By reducing air pollution levels‚ we can help countries reduce the global problem of disease from breathing infections‚ heart disease‚ and lung cancer
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Examination Scheme Theory L 1 2 3 4 5 6 7 8 Chemical Reaction Engineering-II (CS-1) Instrumentation and Process Control (CS-2) Process Equipment Design and Drawing (CS-3) Transport Phenomena (CS-4) ES-1** Seminar Project Preliminaries Total Marks Practicals Tu Pr Hr Sess ional Tu End Sem Sess ional End Sem CH 401 3 0 0 2 50 --- 50 --- --- 100 CH 403 5 3 1 2 2 50 25 50 20 30
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Industrial pollution means contamination due to industries. Industry contributes to many types of pollutants to the environment. They are mainly in gas‚ water‚ and solid forms and they can cause severe problems to the bio systems. Industries are the main problem of pollution because people buy products that factories produce. Factories generate pollutants divided into three major categories specifically gas‚ solid‚ and water. New regulations are promoting the implementation of environmental friendly
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ENERGY RESOURCES Energy is defined as ‘the capacity to do work’. Sun is the primary source of energy. Joule is the standard unit of energy in SI units. Energy utilization is an index of economic development‚ which does not take into account of ill effects/damage on to environment. From 1900 to 2000 population increased by 3 times while energy consumption by 14 times! Energy Resources All energy sources ultimately come from the sun‚ the moon or the earth. Sources of Energy Solar
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GAS WELDING Gas welding is a process that use fuel gases and oxygen to weld and cut metals. Uses: 1-welding and cutting metals 2-in Stone Work for flaming 3-in the glass industry for fire polishing 4-in jewelry production How we use it : The apparatus used in gas welding consists basically of an oxygen source and a fuel gas source it’s pumped through hoses and get out to cut or weld the used metal and there are two cylinders one of them contain oxygen and we can control
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.......... There are all of types of pollution. Industrial pollution is the air‚ water‚ and chemical pollution caused by industries. There has always been pollution. Industrial pollution began when our country went through the Industrial Revolution. Most all parts of the world are affected in some way by industrial pollution. Big cities with steel mills‚ power plants‚ heating plants‚ or railroad stations feel the direct effects of industrial pollution. The smog‚ smell‚ and contamination of
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place without causing major harm to the environment we live in (Kahn‚ Yardly 2007). While rapidly growing air pollution in China brought on by harmful factory production and out dated fueling methods has created an abundance of health inequalities as well as permanent damage to the surrounding ecosystems‚ the solution to these issues prove difficult to solve. With a communist styled
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Air Pollution Hamza Akouayri Class: 600 Robyn Conner Date Air Pollution Air pollution has been a big issue in the entire world. Air pollution occurs when the air includes dust‚ fumes or gases. Air pollution is the accumulation of hazardous substances into the atmosphere. These substances that cause air pollution are called pollutants. In effect air pollution is one of the biggest problems‚ which are threatening people and earth. People breathe in polluted air. Every second people
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