Dioxin is one of the most toxic chemicals known. A report released for public comment in September 1994 by the US Environmental Protection Agency clearly describes dioxin as a serious public health threat. The public health impact of dioxin may rival the impact that DDT had on public health in the 1960’s. According to the EPA report‚ not only does there appear to be no "safe" level of exposure to dioxin‚ but levels of dioxin and dioxin-like chemicals have been found in the general US population
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the study of air pollution are introduced. lsointroduced are a brief history of air pollution‚ its regulation‚ and trends of its ambient concentrations and emissions. Keywords: Anthropogenic‚ biogenic‚ geogenic emissions biogenic‚; primary and secondary pollutants; criteria‚ hazardous‚ radioactive‚ indoor pollutants; sulfur smog‚ photochemical smog; UN-ECE‚ US-EPA‚ Clean Air Act. Air pollution spreads easily as it travels into the atmosphere. People get exposed to air pollution not just outdoors
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definition of the issue - what is it Land management is the process of managing the use and development of land resources. Over the past few two centuries of exploitation on our land resources‚ has taken a heavy toll on our soils. What are the causes of this issue? e.g land degradation‚ salinity and overgrazing Firstly‚ land degradation is any change in the land that reduces its existing or potential productivity. It commonly occurs wherever the natural balance in the landscape is changed by
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POLYTHENE POLLUTION INTRODUCTION The pollutants that are of major concern in today’s world are non biodegradable pollutants that do not degrade or degrade very slowly in the natural environment. Polythene pollution is an example of non biodegradable pollution and they persist on our earth years after years affecting even future generation. Polythene pollution is mostly created by polythene bags‚ plastic syringe‚ pesticide containers‚ medicinal bottles. [pic] Effects of Polythene Pollution Polythene
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smoke billowing from a factory chimney‚ flyash generated by thermal power plants‚ and speeding cars causing dust to rise from the roads. Natural phenomena such as the eruption of a volcano and even someone smoking a cigarette can also cause air pollution. | | |The gaseous composition of unpolluted air | |
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Air pollution – contaminants or substances in the air that interfere with human health or produce other harmful environmental effects. Read our “What is Air Pollution?” article for further information. Alternative energy – usually environmentally friendly‚ this is energy from uncommon sources such as wind power or solar energy‚ not fossil fuels. Alternative fuels – similar to above. Not petrol or diesel but different transportation fuels like natural gas‚ methanol‚ bio fuels and electricity. B
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Environmental Pollution at Hindustan Lever’s Kodaikanal Plant In mid-2004‚ Hindustan Lever Ltd (HLL) executives looked back at the events of the past three years at their mercury thermometer factory in Kodaikanal in the south Indian state of Tamil Nadu. After mercury leakage from the plant had been reported in March 2001‚ heavy expenditure had been incurred in environmental risk assessment‚ waste disposal and health monitoring. The expenditure had exceeded the total profits generated by the plant
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POLLUTION OBSERVATION Submitted to: Professor Ruby Ann Dela Cruz Submitted by: Solon‚ Myka E. CAS-06-501E Air pollution Air pollution is the introduction into the atmosphere of chemicals‚ particulates‚ or biological materials that cause discomfort‚ disease‚ or death to humans‚ damage other living organisms such as food crops‚ or damage the natural environment or built environment. The atmosphere is a complex dynamic natural gaseous system that is essential to support life on planet
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undertake‚ particularly for a group of students with nothing but a shovel. The soil here is hard and compact‚ full of pebbles and lava rocks. Attempting to dig a pit would have been toilsome and ultimately fruitless. Fortunately‚ while on a fieldtrip‚ my classmates and I came upon an archaeological dig site. It was basically a big pit‚ about five feet deep‚ that was perfect for our observations. There were obvious changes in the soil through the different levels‚ and the archaeologist on location provided
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availability of fresh water and its unequal distribution make water pollution a matter of great concern. Water pollution is generally localized and confined‚ making it more severe. The pollutants undergo many reactions and can become hazardous. 70 % of India’s fresh water is polluted‚ including several high altitude lakes. While water pollution is easier to study and manage‚ its control is highly complex and very costly. Water pollution is defined as presence of any foreign substance (organic‚ inorganic
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