concentration of something in water or soil. One ppm is equivalent to 1 milligram of something per liter of water (mg/l) or 1 milligram of something per kilogram soil (mg/kg). A mechanic in an automotive repair shop is exposed to the following carbon monoxide levels over an 8 hour shift. Calculation for TLV and PPM TLV in mg/m^3 = (TLV in ppm) (gram molecular weight)/24.45 *24.45 is the molar volume of air in liters gram molecular weight of CO = 28.0101 g/mol PPM = x(%) = x(ppm) / 10000 * 2
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POLLUTION FROM DIESEL ENGINES AND ITS CONTROL Diesel engines and gasoline engines are the most widely used primary sources of power in automobiles and the sheer number of them makes the issue of emissions from these engines an important one. Table 1 gives a comparison of the amounts of different pollutants in the exhaust of diesel and petrol engines. FORMATION OF NOX AND CONTROL METHODS: The main source of NOx in diesel engine emissions is the oxidation of the nitrogen in the air at the high temperatures
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Introduction “The Ontario Fire Code Article 2.6.3.4.” states open air burning shall not be permitted unless approved‚ or unless such burning consists of a small confined fire‚ supervised at all times‚ and used to cook food on a grill or barbecue." The term ’approved ’ means approved by the Authority Having Jurisdiction (AHJ) which is the local fire department. The Ontario Fire Code dose not regulate the barbequing on the balconies‚ however‚ some cities prohibit it. For example‚ city of Guelph
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Catalytic Converter A.P.P Assessment Catalytic converters are used in cars to reduce pollution and toxic gases‚ such as carbon monoxide. Here are the reactions that happen inside a catalytic converter: 2NOx(g) → xO2(g) + N2(g) – this is the reduction of nitrogen oxides. 2CO(g) + O2(g) → 2CO2(g) – this is the changing of carbon monoxide to carbon dioxide. There are different views on catalytic converters. The two main views are the environmental view‚ and the economic view. The environmental view
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Protecting and Preserving Our Environment Our planet Earth is dying. This is a fact that we are experiencing‚ caused by our own behaviors. The term “dying’’ is true‚ because our lifestyle is causing serious damage to the environment and might lead to the termination of humanity if those actions are not stopped. We all share a role in protecting and preserving our environment because it is the primary and the only place for us to live and develop new generations. We all are consumers‚ but there
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that we use contain dangerous chemicals and they make atmosphere dirtier. Furthermore climate changes because of pollution. Many substances involved in the things that people use‚ pollute the air seriously. For instance‚ cigarettes contain carbon monoxide. It occurs when wood or petrol are not burned. Another one is carbon dioxide and it emerges when we burn coal or wood. When these gases contact with atmosphere‚ ozone layer is destroyed. The other one is lead and simply paint or batteries that
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mixture of 13.1 g Zn and 22.0 g I2 is reacted to completion in a closed‚ evacuated container. What are the contents of the container after this reaction? Zn + I2 ZnI2 #7 If a reaction of 5.0 g of hydrogen with 5.0 g of carbon monoxide produced 4.5 g of methanol‚ what was the percent yield? 2H2 + CO CH3OH (a) 11% (b) 79% (c) 96% (d) 24% (e) 63% #8 In the sequential reactions shown below‚ the first reaction has an 80% yield and the second reaction
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time. Car emissions produce three types of carbon - Carbon Monoxide (CO) and Carbon Dioxide (CO2) and hydrocarbon (CH4) - which are traumatizing both our health and the environment. By itself‚ carbon isn’t a harmful element‚ but one of its characteristics is easily pairing up with majority the elements in the periodic table. Its ability to bond is infinite; it can create many different substances without any problems. Carbon Monoxide is a poisonous gas‚ that leads to severe poisonings and in
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protect our living environment. We need to have other possible solutions to help meliorating the problem. In order to reduce the air pollutants emitted by the vehicles‚ we suggest installing a 3-way catalytic converter‚ which can oxidize carbon monoxide to carbon dioxide 2CO + O2 ---> 2CO2‚ unburnt hydrocarbons to carbon dioxide and water CxH2x+2 + (3x+1)/2 O2 ---> xCO2 + (x+1) H2O and reduce nitrogen oxides to nitrogen and oxygen 2NOx ---﹥N2 ＋ xO2. Nevertheless‚ the catalytic converter cannot be
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measure of financial sustainability. The enterprise began knowing the retrofit kit was going to help the environment from harmful carbureted 2-stroke motorcycle emissions (90% reduction in unburned hydrocarbon emissions and 70% reduction in carbon monoxide emissions)‚ and the team also knew the fuel and oil conservation would save the taxi drivers 220 dollars a year. That money saved would make a large social impact in the Philippines‚ which was the first market the team decided to target. Since‚ Envirofit
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