Pollutions. Pollutions at a glance, air pollution,noise pollution,water pollution,pollution control

                                  Pollution

·       Pollution

Pollution is when something is added to the environment that is harmful or poisonous to people, animals and other living things. Smoke in the air from factories is a type of pollution as it is bad for the lungs when breathed in. Sewage in drinking water is another type of pollution, as it can make people unwell because it contains germs and viruses. People living next to a building site where there is too much noise can become sick as they cannot sleep or relax. This is called noise pollution.

 

·        Air pollution

Air pollution is caused by harmful gases such as carbon dioxide, sulphur dioxide and nitrogen dioxide and very small particles of carbon. Most of the pollution is caused by factories, vehicles and livestock. Today air pollution has become dangerous to humans. Heavy air pollution may cause breathing problems like asthma or other health problems.

 

·        Water pollution

Water pollution is the presence of harmful materials in water, such as sewage, dissolved metals, waste from farms and factories and crude oil spilled from shipwrecked tankers. The three main substances that pollute water are nitrates from fertilisers, sewage and detergents.Pollution causes harm to organisms living in water and can also harm people's health, and can cause problems such as cancer.

 

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  Noise pollution

The harmful noise in the environment, such as the sound of cars in a city, loud speakers, etc. is called noise pollution. Noise pollution can cause ear problems or even permanent deafness, especially to older people. Noise pollution can be defined as the unwanted sound in the atmosphere.

 

 

Effects  ( Human health)

Adverse air quality can kill many organisms including humans. Ozone pollution can cause respiratory disease, cardiovascular disease, throatinflammation, chest pain, and congestion. Water pollution causes approximately 14,000 deaths per day, mostly due to contamination ofdrinking water by untreated sewage in developing countries. An estimated 700 million Indians have no access to a proper toilet, and 1,000 Indian children die of diarrhea every day.^[ Nearly 500 million Chinese lack access to safe drinking water. 656,000 people die prematurely each year in China because of air pollution. In India, air pollution is believed to cause 527,700 fatalities a year. Studies have estimated that the number of people killed annually in the US could be over 50,000.

Oil spills can cause skin irritations and rashes. Noise pollution induces hearing loss, high blood pressure, stress, and sleep disturbance. Mercuryhas been linked to developmental deficits in children and neurologicsymptoms. Older people are majorly exposed to diseases induced by air pollution. Those with heart or lung disorders are under additional risk. Children and infants are also at serious risk. Lead and other heavy metals have been shown to cause neurological problems. Chemical and radioactive substances can cause cancer and as well as birth defects.

 

Greenhouse gases and global warming

Carbon dioxide, while vital for photosynthesis, is sometimes referred to as pollution, because raised levels of the gas in the atmosphere are affecting the Earth's climate. Disruption of the environment can also highlight the connection between areas of pollution that would normally be classified separately, such as those of water and air. Recent studies have investigated the potential for long-term rising levels of atmospheric carbon dioxide to cause slight but critical increases in the acidity of ocean waters, and the possible effects of this on marine ecosystems.     

                                      

 

Most polluted places in the developing world

The Blacksmith Institute, an international non-for-profit organization dedicated to eliminating life-threatening pollution in the developing world, issues an annual list of some of the world's worst polluted places. In the 2007 issues the ten top nominees, already industrialized countries excluded, are located in Azerbaijan, China, India, Peru, Russia, Ukraine and Zambia.

 

Pollution control

Pollution control is a term used in environmental management. It means the control of emissions and effluents into air, water or soil. Without pollution control, the waste products from consumption, heating, agriculture, mining, manufacturing, transportation and other human activities, whether they accumulate or disperse, will degrade the environment. In the hierarchy of controls, pollution prevention and waste minimization are more desirable than pollution control. In the field of land development, low impact development is a similar technique for the prevention of urban runoff.

My View :       ♥Be Friendly to Our Society.

                        ♥Save the Natural Resources in the Correct way.

                        ♥Know the exact state of Our Country’s Wealth which has

                           been misused by many of us unknowingly.

                        ♥Conserve the Natural Resources.

                        ♥Its our duty to Provide a POLLUTION FREE COUNTRY…!

Source : Google as well as from other sites.

              Google images.