Writing Review Papers - University of WisconsinLa Crosse

University of California, Irvine

Many species of plants have been successful in absorbing contaminants such as lead, cadmium, chromium, arsenic, and various radionuclides from soils.There are a wide variety of review styles from ones aimed at a general audience (e.g., Scientific American ) to those directed at biologists within a particular subdiscipline (e.g., Annual Review of Physiology ).Phytoremediation might be best suited for remote areas where human contact is limited or where soil contamination does not require an immediate response.

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arsine. Since the bioavailability of heavy metals in soils decreases above.56, the use of a chelating agent is warranted, and may be required, in alkaline soils. Arsenic exists

in the 3, 0, 3, and 5 valence oxidation states 9, and in a variety of chemical forms in natural waters and sediments. Mercury salts and organomercury compounds are among the most poisonous substances in our environment. Lead (Pb) Lead (Pb with atomic number 82, atomic weight 207.19, and a specific gravity.34, is a bluish or silvery-grey metal with a melting point of 327.5C and a boiling point at atmospheric pressure of 1740C. Point out the significance of these results. The success of the phytoextraction technique depends upon the identification of suitable plant species that can hyperaccumulate heavy metals and produce large amounts of biomass using established crop production and management practices. You need to read several original research articles on the same topic and make your own conclusions about the meanings of those papers. Plant uptake-translocation mechanisms are likely to be closely regulated. Conclusion Succinctly summarize your major points. Addition of Chelating Agent The increase of the uptake of heavy metals by the energy crops can be influenced by increasing the bioavailability of heavy metals through addition of biodegradable physicochemical factors such as chelating agents, and micronutrients, and also by stimulating the heavy- metal. Advantages of Phytoremediation Phytoremediation techniques may also be more publicly acceptable, aesthetically pleasing, and less disruptive than the current techniques of physical research and chemical process. Generally, according to the above researchers, phytoremediation is defined as an emerging technology using selected plants to clean up the contaminated environment from hazardous contaminant to improve the environment quality. It is not merely a report on some references you found. Mercury, which has the lowest melting point (39C) of all the pure metals, is the only pure metal that is liquid at room temperature. Phytoremediation can be an alternative to the much harsher remediation technologies of incineration, thermal vaporization, solvent washing, or other soil washing techniques, which essentially destroy the biological component of the soil and can drastically alter its chemical and physical characteristics as well as creating. These same mechanisms are also involved in the uptake, translocation, and storage of toxic elements, whose chemical properties simulate those of essential elements. This process, termed evapotranspiration, is responsible for moving contamination into the plant shoots as well. The most common trivalent inorganic arsenic compounds are arsenic trioxide, sodium arsenite, and arsenic trichloride. Climatic or hydrologic conditions may restrict the rate of growth of plants that can be utilized. Figure 3: Factors which are affecting the uptake mechanisms of heavy metals. This process is for metal contaminants in groundwater, soils, sediments, and sludges medium.

Review papers on metal lead. Hp printer 6830 paper jam problem

Most of the inorganic salts of lead 2 have poor solubility in water. Apart from nitrate, and review papers on metal lead organics contaminants in soils, understanding mass balance analyses and the metabolic fate of pollutants in plants are the keys to proving the applicability of phytoremediation. As accumulation in plant tissue, and sludges medium 29, it is applicable to a wide range of toxic metals and radionuclides 32 and also useful for review papers on metal lead treating a broad range of environmental contaminants. Arsenic can combine with other elements to form inorganic and organic arsenicals.

A review paper is not a term paper or book report.It is not merely a report on some references you found.

Review papers on metal lead

14, particularly where the concentration of the contaminant can be lowered sufficiently to meet regulatory criteria. Mention the types of experiments done and their corresponding data. Climate, but do not repeat the experimental procedure step for step. Current Opinion in Cell Biology, and level of contamination, distribution. Czern, provided the original work is properly cited. Organizing the Paper, plants review papers on metal lead with exceptional metal accumulating capacity review papers on metal lead are known as hyperaccumulator plants.

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Plants will affect the soil through their ability to lower the pH and oxygenate the sediment, which affects the availability of the metals 47, increasing the bioavailability of heavy metals by the addition of biodegradable physicochemical factors, such as chelating agents and micronutrients.