Essay On Cd Metal - 1141 Words

Interpolating Cd Metal in Soil Using Spatial Techniques in Metropolis Areas of Faisalabad Abstract Rapid industrialization and urbanization in recent decades has resulted in large emissions of heavy metals especially in urban soils around the world. Soil contamination with heavy metals may pose serious threat to environmental quality and human health due to their toxicity even at low concentration. Cadmium (Cd) is one of the toxic heavy metals that has high mobility in soil-plant system and can accumulate in plant and human bodies. In this study, we determined the content of Cd in urban and peri-urban soils of four towns (Lyallpur, Iqbal, Jinnah and Madina) of Faisalabad. The samples of surface soil (0-15 cm) were collected from†¦show more content†¦Due to massive increase in population and so residential colonies in Pakistan many industrial units once located outside of big cities has now surrounded by living places. This is particularly true for Faisalabad Metropolitan, where many industrial units once outside city have been surrounded by many residential colonies. Most of these industrial units release untreated wastewater and gaseous pollutants in soil-water and air compartments of atmosphere. The waste water released from industrial units is being used by farmers for growing several vegetables and fodder crops. The continuous use of such waste water for irrigation is introducing many heavy metals in soils. These heavy metals especially cadmium (Cd) from soils can easily enter food through the consumption of food crops grown on metal contaminated soils. Owing to high mobility in soil-water-plant nexus, Cd is easily entered in food chain and thus can pose serious threat to biological molecules and affects several body functions in human body. (Momodu and Anyakora, 2010). Soil is a heterogeneous body that shows large variations in most of the properties (physical, chemical and biological). Although many factors and processes of soil formation contribute to the variation in soil properties, time and space are the two most importantShow MoreRelatedBob Marleys Redemption Song933 Words   |  4 Pageshome the message. By seeking redemption through music he encourages us to ask ourselves what of our personal redemption. Redemption Song became a part of my life accidently. Someone left a Marley CD at my house, I bought a car with a CD player and as a break from my usual thrash metal I put in this CD. The soulful strains of Redemption song caught my attention and the different feel was a welcome break. It took a long time for the words to sink in, to emancipate myself from mental slavery for meRead MoreRubbish Has No Value1458 Words   |  6 Pages‘Rubbish has no value’. Identify the arguments for and against this view. Essay Plan: 1. Introduction - Explain the word ‘rubbish’ and introduce the related issues. 2. Consumer society, mass consumption and rising affluence – introduction to history, grounds and effects. 3. Rubbish as a valuable material; Michael Thompson theory and re-valuation; waste as a useful resource. 4. Conclusion – best ways to handle the rising problem like mass consumption, production, rubbish and how to protect itRead MoreComparing the Advertising of Different Companies of a Non-Gender Specific Product1131 Words   |  5 PagesComparing the Advertising of Different Companies of a Non-Gender Specific Product For my essay I am going to compare and contrast the advertising of different companies of a non-gender specific product, namely music systems. I am going to look at examples of print adverts and language specifically from TEAC Systems and compare them to rivals in the market place. In this essay I am going to look specifically at the interesting campaign running for TEAC stereo systems. The campaign is highlyRead MoreHow Lasers Work, The Development Over Time And The Effect On People s Lives1364 Words   |  6 PagesThis essay will discuss how lasers work, the development over time and the effect on people’s lives. Lasers work by using a process called stimulated emission which allows an incoming photon (of a precise level) to interact with an excited atomic electron. Stimulated emission allows three things to occur. The first is the light from a laser being monochromatic. This means that the light is of only of one specific wavelength of colour. The wavelength of light is decided by the amount of energy releasedRead MoreOne World Essay Microwave Oven1666 Words   |  7 PagesMYP Science One World Essay : Microwave Oven Word Count : 1,325 Imagine what life was like before the microwave oven was created. Time would be wasted in reheating certain foods when using a stove to reheat. As it takes a long time to preheat a stove, which is what was used before the microwave oven to reheat food. Using a traditional stove also tends to create a more stressful environment when being used because of the heat that builds up in the area making it uncomfortable. This does not existRead MoreRubbish Has No Value. Identify the Arguments for and Against This View.1171 Words   |  5 Pageskilograms. This trend has been explained by the growing affluence of the general person and their greater amount of disposable income, which is then being spent on luxury products. As a result, more and more waste is being generated each year; this essay will explore the arguments around whether this ever increasing amount of rubbish has any value. One line of reasoning is that rubbish does not have value, or at least has very little in relation to its starting value. This can be explained by examiningRead MoreSociety with Music2717 Words   |  11 Pagesmusic festivals in today’s society. Music has changed a lot within the past few decades. Music festivals have pretty much stayed the same. People can be judged on the type of music that they listen to as well as the way that they dress. In this essay I will consider how music relates to a sociological theory, three social concepts, how music has changed, peoples clothing appearance, race in relation to music, TV in relation with music, different type of music magazines, the radio, and music festivalsRead MoreThe Active Pixel Sensor Of Digital Cameras1432 Words   |  6 Pagesthe other hand CMOS sensors can be very conveniently integrated with the silicon substrate. The main objective of this essay is to provide information about active pixel sensors. Introduction The market for image sensors are showing an enormous increase in sales and developments of digital cameras and mobile phone cameras. Imaging sensors are mainly of two types: complementary metal oxide semiconductor (CMOS) image sensors and charge couple device (CCD) sensors. Active pixel sensors (APS) are the emergingRead MoreEssay on Society’s Influence on 1984 and George Orwell1391 Words   |  6 Pagessurveillance practices: The telescreen received and transmitted simultaneously. Any sound that Winston made, above the level of a very low whisper, would be picked up by it; moreover, so long as he remained within the field of vision which the metal plaque commanded, he could be seen as well as heard. There was of course no way of knowing whether you were being watched at any given moment. (Orwell 6) In 1949 when this book was written, the world was in war, or had just gotten out of it.Read MoreValuing Rubbish Essay example1433 Words   |  6 PagesRubbish has no value. Identify the arguments for and against this view. Essay Plan. Process words- Identify the arguments. (outline the arguments) Content words- Rubbish, Value. Rubbish is the invisible part of consumption (Brown, 2009, p103). The definition of rubbish via the dictionary is something that is worthless, unwanted material that is rejected or thrown out; (Dictionary.com, July 2012). It is something that no one wants and ought to be out of the way and out of sight