to address the principal threat at the site by preventing current or future exposure to the contaminated soil through treatment and/or containment‚ and reducing or controlling the potential migration of contaminants from the soil to ground water. Remedy Selection A proposed plan for the site was issued in August 1990‚ presenting the preferred alternative of chemical dechlorination of the contaminated soil. The EPA Regional Administrator for Region 6 signed a Record of Decision (ROD) on September
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nowadays. Environmental issues like pollution‚ climate change‚ global warning and deforestation are being discussed this day. Pollution is one of biggest concern in the environmental issues because it covers all which are water pollution‚ air pollution‚ soil pollution and noise pollution. Pollution is contaminants that can cause an adverse change s to environment and human health. Pollutants is components of pollution where it can be foreign substances or it just naturally contaminants. Pollution can be
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Lay‚ Janine Group #5 December 4‚ 2012 Experiment 1: Preparation of Culture Media Materials: Erlenmeyer Flasks (2 pcs.) Petri dishes (11 pcs.) Cotton stopper Aluminum foil Masking tape NA powder PDA powder Pentel pen Stirring rod Casserole Electric stove Pressure cooker/ autoclave Steps in Preparation of Culture Media: 1. Calculate the total amount of media needed for the experiment (15ml for plates‚ 5-7 mL for tubes). 2. Weigh the required amount of powder needed to
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student in 2008 in a particular type of guava plant. Other students followed up and discovered that not only does the fungus break down polyurethane‚ but it can do it in the depths of a landfill. Pestalotiopsis microspora presents a massive bioremediation opportunity for landfills‚ where buried and surface plastics can be degraded naturally. The fungus was discovered by a group of students and professors from Yale University. They were part of the undergraduate Rainforest Expedition and Laboratory
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biodegradation and eliminating methane is aerobic bioremediation of landfills. In aerobic bioremediation‚ air and leachate are injected into the solid waste‚ resulting in relatively fast aerobic biodegradation and no methane production. At the same time‚ the compaction rate is enhanced (U.S. EPA‚ 2002). The purpose of this research is to determine the critical physical‚ chemical and biological processes that control aerobic landfill bioremediation. The research is directed at understanding the
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Review Questions 1. How are fire scenes different than regular crime scenes for investigators? 2. What is the blast effect? 3. What are the two types of high explosives? 4. What is a substrate control? Why is it done? 5. How is the evidence from a fire scene collected? What should be avoided? 1. Fire scenes will deteriorate at a faster pace than normal crime scenes and will have to be cleaned up for health reasons. Investigators have limited time to gather up as much evidence as possible. 2. The
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Kenneth Todar –AUTHOR Introduction to The Microbial World © 2009 Kenneth Todar PhD Figure 1. The bacterium‚ Legionella. American Society for Microbiology. The Microbial World The microbial world is a realm of life made up of microorganisms and viruses. Microbiology is the branch of biological sciences concerned with the study of these microbes. Microorganisms are unicellular organisms (capable of existence as single cells)‚ too small to be seen with the naked eye. Among all forms of
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War vs. Environment “Warfare is inherently destructive of sustainable development. States shall therefore respect international law providing protection for the environment in times of armed conflict and cooperate in its further development‚ as necessary.” – 1992 Rio Declaration From the Romans in 146 BC salting fields around Carthage to impair food production to the looting of Iraqi nuclear facilities in the last decade‚ the environmental destruction resulting from war has had an enduring legacy
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References: ARONSTEIN‚ B.N.‚ and ALEXANDER‚ M. (1993). Effects of a nonionic surfactant added to the soil surface on the desorption and biodegradation of sorbed aromatic compounds in soil. Environ. Sci. Technol. 25‚ 1728–1732. BURY‚ S.J.‚ and MILLER‚ C.A. (1993). Effect of micellar solubilization on biodegradation rates of hydrocarbons. Environ. Sci. Technol. 27‚ 104–110. GOSWAMI‚ P.‚ and SINGH
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metal to metal. The accepted toxic level of lead is 0.0012 parts per million‚ however it is not considered safe at any level. The environmental protection agency says that the maximum contaminant level for cadmium in drinking water is 0.005 mg/L. In soil it is said that the highest amount of cadmium that can be accepted in land is 85 mg/kg. For Mercury the accepted toxic level in aquatic systems in 1ppb b) Heavy metal pollution is
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