Humans consumed the resources in nature and survived through thousands of years. Today we are destroying the same nature which gave us birth. Today the pollution has become a global problem and its consequences can be seen around us. Plastic was one of the greatest inventions of mankind.
More and more people throughout the world, including India, are now dependent on ground water for drinking, agricultural and industrial use. In the recent past, ground water was considered generally pure and safe for drinking. However, recent studies have revealed that ground water sources are also facing major threats of pollution.
Ground water is being polluted by percolation of contaminated surface water through the layers of the earth.
Release of raw sewage in unlined soak-pits and release of toxic effluents by the industries into surface water bodies, are the main causes of ground water pollution Indiscriminate and overuse of fertilizers, chemicals and pesticides have also caused ground water pollution through the seepage of irrigation water into ground water reserves.
The hazards of ground water pollution depend on several factors such as: The level of ground water if the level is higher chances of contamination are more iii. Conditions of ground water recharge Water is essential for all forms of life and none can survive on this earth without water.
Of the river basins in India, 14 are major, 44 are medium and 55 are minor major basins are larger than 20, square km. Three major rivers, namely the Ganga, the Brahmaputra, and the Indus, are snow fed rivers originating from the Himalayas and the other major rivers originate either in the central plains or in peninsular India.
Chemically, water contains two parts hydrogen and one part oxygen. Water for human consumption should be clean, colourless, odorless, well aerated, cool, soft, palatable, free from dissolved toxic substances and suspended particles. But water is rarely found in pure state.
Man has polluted the bodies of water to an alarming state. In recent years the pollution of water has become one of the most significant environmental problems in the world.
There is a great concern for rapidly deteriorating quality of water. The causes of water pollution are many but urbanisation, industrialization and increasing pollution are more prominent among them. Water is said to be polluted when its quality or composition is changed either naturally or as a result of human activities and it becomes unsuitable for drinking and less suitable for domestic, agricultural, industrial, recreational and other uses.
The dissolved or suspended substances which deteriorate the quality of water and make it unfit for human consumption are called water pollutants. In other words, water pollutants are those physical, chemical or biological factors which are harmful to aquatic life and to those who consume water.
Water pollutants include several chemicals in dissolved or suspended state, some physical factors such as heat, radiations, and some bio-pollutants such as aquatic microorganisms, particularly pathogens Table Most of the wastes generated by human society are disposed of in the bodies of water such as rivers, lakes and oceans.
Some of the wastes which are discharged in air or on land may also ultimately enter the bodies of water. When human population is concentrated too much along the water ways they are unable to handle huge quantities of domestic wastes released into them and consequently they become polluted with unhappy results.
Growths of big cities and industrial setups at the banks of rivers have posed serious problems. Huge discharge of industrial wastes and sewage into the rivers, lakes, ponds etc. Today there is a growing concern about the pollution of our lakes and rivers.
The results of water pollution are quite apparent whether they are measured in terms of living resources, or hazards to human health or reduction of immunities. Marine pollution is the matter of International concern from the point of view of conservation of living resources.
All coastal nations dispose of millions of gallons of untreated sewage, millions of tonnes of garbage, unlimited amount of low level radioactive wastes etc.
There can be no doubt in it that there has been a serious decline in environmental quality and production in estuarine and shallow coastal waters as a result of pollution.
Oceans are considered the ultimate waste disposal sinks. Though, the oceans have enormous capacity to dilute, degrade and disperse large amounts of wastes, there is a limit to it.
In addition to the marine environment, areas along the coasts, such as, estuaries, reefs, wetlands, mangroves, etc. The main sources of marine pollution are: Municipal wastes and sewage 2.
Oil spills from tankers 5. Offshore drilling and mining 6. Submarine nuclear testing 7.POLLUTION Pollution is when something is added to the environment that is harmful or poisonous to people, animals and other living urbanagricultureinitiative.com other words pollution is the contamination of the environment.
Environment & Pollution A Part of Conversation Questions for the ESL Classroom.. Are there litter laws where you live?
If so, what is the penalty for littering? Do . Anthropogenic impact in the sea and marine pollution. by Stanislav Patin, translation by Elena Cascio based on "Environmental Impact of the Offshore Oil and Gas Industry".
Below you will find a brief introduction to the problem of anthropogenic impact in the sea and marine pollution. However, recent studies have revealed that ground water sources are also facing major threats of pollution. Ground water is being polluted by percolation of . Animals higher up the food chain, such as seals, can have contamination levels millions of times higher than the water in which they live.
And polar bears, which feed on seals, can have contamination levels up to 3 billion times higher than their environment. Marine Contamination and Pollution causing major problems to marine life and ecosystems.
Major causes of marine pollution involve non-point pollutants, marine garbage, toxic ocean pollutants and sewage disposal in oceans. destroys the beauty of nature, and causing harmful dreaded diseases and sickness in precious health of .