Pollution
Global environmental problems
February 20, 2012 | 
Author The man, who lived in the 20th century, was in a society that is saddled with many dilemmas, accompanying socio-economic development. The problem of relocation, nutrition, health, electricity, etc., do not help the situation and problems of the decline of forests (25 ha) of land, desertification (46 ha), the increase of greenhouse gases in the atmosphere, etc. Society faced a grave crisis and show-grounds it consists of position relations of society and the environment, even in times of transition to manufacturing economy.
Interaction between society and nature is an objective: people are part of nature and nature is part of its economy through natural resources. With the emergence of mental abilities, their subdued man forming his upbringing tasks as a person. The technological revolution has opened the curtain on the ability to meet people’s needs, interests, and at the same time, pressure on natural systems increased by a thousand times. There are no restrictions on the full enjoyment of natural resources led to an irreversible deterioration of the quality of the environment. Trees forest, testing of atomic bombs, the subordination of all electricity-world as not fitting can be said, was to remind the greenhouse, which develops, but with difficulty, plants and living things, which doesn’t help, but on the contrary that puts barriers, air and drinking water. This situation is the root of global environmental problems.
In fact the main reason a viable environment not much. Has long been understood that people find themselves right tackle world, trying not to spoil the nature, but of course with what purpose, get a good pocket. This approach to the problem, already global, will lead to the destruction of all life. Not to mention global warming, this is the outcome of the human factor. Humanity that ignores the “hints” of nature, considering that has superiority over the situation. In the meantime, human technology is increasingly upset the equilibrium in the environment.
However, with the increase in population on the planet are increasing and the pressure on the natural environment. Become more complex and the types of pollutants. After all, man progresses. More original chemicals which have not the good impact on the biosphere. Considerable damage is caused to the water the food, petrochemical, woodworking industry.
Inappropriate use of natural resources-minerals soon will be a deficit. After all, they are finite types of natural resources. This outcome occurs when mining, enrichment, transport, processing. As a result of huge amounts of mountain masses break the balance of the surface of the lithosphere. Under their weight drops or swelling, this could lead to a breach of the groundwater regime and water logging of large areas.
Posted in global warming, Pollution | 
Tags: Atomic Bombs, Causes Of Pollution, Curtain, Desertification, Deterioration, Drinking Water, Emergence, Equilibrium, Gases In The Atmosphere, Global Environmental Problems, Global Warming, Grave Crisis, Greenhouse Gases, Human Technology, Mental Abilities, Nutrition Health, Subordination, Superiority, Technological Revolution, Time Pressure, Upbringing | 
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Ecological crisis
The economic activities of mankind during the last century have led to serious pollution of our planet in a variety of waste production. Air, water and soil in areas of major industrial centers often contain toxic substances which exceed maximum permissible concentration (MPC). Since cases significantly exceeding the MPC sufficiently frequent and increasing morbidity related to pollution of the natural environment, in recent decades, professionals and the media, and follow them and people began to use the term “ecological crisis”.
All you should split the concept of “local” and “global”. The local ENVIRONMENT is expressed in the local raising of dirt-chemical, thermal, noise, electromagnetic-through one or several closely spaced sources. As a rule, the local ENVIRONMENT may be more or less easy to overcome administrative and/or economic measures, for example by improving process technology in the enterprise polluting or through redevelopment or even closure. Much more serious risk is global ecological crisis. It is a consequence of the whole economic activity of our civilization and manifests itself in changing the characteristics of the natural environment on a global scale and thus dangerous to the entire population of the Earth. Deal with the global ENVIRONMENT is much harder than with a local, and this problem will be solved only in the case of minimization of pollution produced by humanity to the level to which the nature of the Earth would be unable to cope on their own. Currently the global ecological crisis includes major components: acid rain pollution, the greenhouse effect, and the so-called ozone hole.
An important source of SO2 is the non-ferrous metal industry: production of copper, nickel, cobalt, zinc and other metals includes stages of roasting of sulphides. Nitrogen oxides-predecessors of nitric acid-enter the atmosphere primarily in the flue gas of boilers of thermal power plants and exhausts of internal combustion engines. At high temperatures, developing in these devices, nitrogen air partially oxidized, giving a mixture of Mono-and nitrogen dioxide.
Posted in global warming, Pollution | Tags: Economic Activity, ENVIRONMENT, Global Ecological Crisis, Major Industrial, Pollution | Comments Closed
Life and environmental pollution
Environmental pollution. There are four of the environments: water, soil and living organisms. In general, is all that surrounds the organism, or directly or indirectly affect their status, development and survival. But lately more and more pressing topic of pollution, because as a result of technical progress and human activities affect the reckless.
What exactly do people breathe and eat. Active environmental pollution began about two hundred years ago, when it began development of the industry in Europe, especially in England. Coal ash and dust is very polluted air, and even affect the speed of evolution. For example, some of the Butterfly over two hundred years have changed their colors to adapt to new conditions of life in parts of Europe where there are many industrial companies. Previously, this butterfly has a light color and hide the light crust, who escaped from the bird. As a result of deposition of coal dust in large quantities. To adapt to new conditions of life, the butterflies have changed their colors to black, so they can be seen in the blackened crust.
With the development of the industry, started to increase emissions of harmful gases in the atmosphere. In the 20th century coal came to replace oil and gas. Throwing out the combustion products of oil, nitrites and humans have created a new problem: the problem of acid rain. Acid rain clouds can move with the wind at a distance of thousands of kilometers from the gas plant, which falls far from the pollution. Acid rain causes heavy damage to crops, destroying fertile topsoil, killing the useful micro-organisms.
Gas emissions into the atmosphere, composed of Freon ® in the refrigerator and aerosols, as well as certain substances contained in the packet of food from fast food is called, the materials used in everyday life deplete the ozone layer that protects Earth from harmful ultraviolet radiation that can cause people have skin cancer, eye diseases and strong results endanger marine life and is highly susceptible plants. Arctic zone where the ozone layer is the most subtle. It was ascertained that the hole in the Antarctic is growing, and has already reached a large size. Excessive carbon dioxide emissions from combustion and respiration of living things, causing the formation of so-called greenhouse effect: carbon dioxide film comes from the sun reflected from the earth, creating a greenhouse effect. As a result of the accumulation of excess heat, Earth’s temperature began to rise. Higher temperatures lead to ice melting, causing sea level rise. Calculated that if all the ice will melt, sea levels rising 61 meters and cities like London and New York who disappeared under the water, and countries like the Netherlands and Bangladesh disappear under water. It will also lead to disaster for the world’s flora and fauna. Equally important role played by water and soil pollution. This can be regarded as an example of the black sea: everyone knows that black sea, Dead Sea.
Posted in global warming, Pollution | Tags: Ash And Dust, Coal Ash, Fertile Topsoil, Gases In The Atmosphere, Greek Parthenon Temple, Rain Clouds | Comments Closed
Sources of pollution
Contaminants enter the fresh water in various ways: as a result of accidents, intentional dumping, spills and leaks. The largest potential source of pollution – farms, which occupy in England and Wales, almost 80% of the land. Part of the covering soil of untreated animal manure gets into freshwater sources.
In addition, farmers in England and Wales applied to the soil annually 2.5 million tons of nitrogen, phosphorus and potassium, and part of the fertilizer gets into fresh water. Some of them – persistent organic compounds that penetrate the food chain and cause environmental problems. Today in the UK roll production of organochlorine compounds, produced in large quantities in the 1950s.
Increasing threat to freshwater runoff are discharged from fish farms, because of the wide use of pharmaceuticals to combat diseases of fish. Rapid groundwater pollution around the cities. Source – an increasing number of contaminated wells due to not proper operation.
Forestry and open drainage – a large number of sources of substances that enter into fresh water, especially iron, aluminum and cadmium. With the growth of trees, forest soil acidity increases, and heavy rains make very acidic effluent, detrimental to wildlife.
Once in the river, the slurry can cause serious environmental disaster, since its concentration is 100 times greater than that of sewage treated at wastewater treatment plants. Atmospheric pollution of fresh water is particularly detrimental. There are two types of pollutants: coarsely dispersed (ash, soot, dust and liquid droplets) and gases (sulfur dioxide and nitrous oxide). All of them – the products of industrial or / x work. When a drop of rain, these gases combine with water, concentrated acids are formed – sulfuric and nitric acid.
Posted in Pollution | Tags: Acidity Increases, Diseases Of Fish, Groundwater Pollution, Liquid Droplets, Soil Acidity, Wastewater Treatment Plants | Comments Closed
Water pollution
Water pollution – adverse changes in physical, chemical and bacteriological water caused by the introduction of an excess of inorganic substances (solid, liquid, gas), organic, radioactive, and finally the heat, which limit or prevent the use of water for drinking and domestic purposes.
Water pollution is mainly caused by chemicals, bacteria and other microorganisms present in natural waters in increasing numbers. Chemicals Organic and inorganic (mineral) occur in the form of solutions, colloidal solutions and suspensions. The chemical composition of impurities is shaped by natural factors, such as decay of substances from soils and rocks, development and withering away of aquatic organisms and anthropogenic factors. The most common anthropogenic pollution of surface water include pesticides, surfactants, petroleum hydrocarbons, phenols, chlorinated derivatives of biphenyl and heavy metals: lead (Pb), copper (Cu), chromium (Cr), cadmium (Cd), mercury (Hg) and zinc (Zn), and heated water (thermal pollution), which are particularly dangerous for the surface water of low flow or stagnant water. Most of the anthropogenic pollution is toxic to aquatic organisms. Impurities are very persistent in the aquatic environment and very difficult to undergoing chemical and biochemical processes are called refractive substances.
Most goes to the water pollution together with sewage. Other sources of water pollution and water transport are the land use of pesticides and fertilizers, and municipal and industrial waste. Water gets contaminated as a result of eutrophication. Water cycle has been disturbed by man – deforestation, monoculture agriculture, inappropriate and excessive treatment, agricultural, urbanization.
Posted in Pollution | Tags: Anthropogenic Pollution, Chlorinated Derivatives, Petroleum Hydrocarbons, Solutions And Suspensions, Sources Of Water Pollution, Zinc Zn | Comments Closed