ECO PROBLEM

Air Pollution Polluted air is a change in the characteristics of the atmosphere , which may be a chemical , mechanical or biological origin , most commonly caused by the release of chemicals or biological materials from human . Air pollution damages human and living organisms , in some cases causing death and disease , obstruction of breathing , etc. Air pollution is most often associated stationary pollutants such as plants , factories, but the biggest air polluters are mobile sources, mainly automobiles. Many substances located in the atmosphere cause harm to plants and living organisms or reduced visibility . Originating or by natural processes or activities of man. The high concentration of these substances in the air is called air pollution. http://www.youtube.com/watch?v=UcWpkWBX04E

Air pollutants Pollutants can be classified as primary and secondary air pollutants. Major air pollutants are directly released into the atmosphere due to substances of volcanic activity or human actions ( volcanic ash , carbon monoxide from cars , etc.) . Secondary air pollutants are those formed as a result of chemical reactions of the main air pollutants. Single pollutant may be both primary and secondary . Major air pollutants as a result of human actions: - Sulphur oxides (SOx) , in particular sulfur dioxide formed from burning coal. - Nitrogen oxides (NOx) in particular nitrogen dioxide . - Carbon monoxide released from incomplete combustion of fuels such as gas, coal , diesel, petrol and wood. Cars are the biggest source of carbon monoxide. - Carbon dioxide , also known as a greenhouse gas.

Water pollution The main sources of water pollution can be divided into two categories depending on their source. Pollutants that fall into the water from individual sources, as an example of this category to show water discharged from sewage treatment plants, factories and manufacturing facilities, leaky underwater warehouses, etc. Many of the chemical substances are toxic and can cause illness and death. Water pollution is a problem of global scale. http://www.youtube.com/watch?v=y1ObvXZDQNs

Pollutants of water Water pollution is defined as pollution of lakes, rivers , oceans , and groundwater caused by human impact , which can lead to the death of plants and organisms living in these environments. The main sources of water pollution can be divided into two categories depending on their source. Pollutants that fall into the water from individual sources , as an example of this category to show water discharged from sewage treatment plants , factories and manufacturing facilities, leaky underwater warehouses, etc. The second group of contaminants are those that do not stem from separate points of contamination and are global or larger scale, nitrate -mixed farmland after rain or metals and other impurities in areas with heavy traffic on the road, where exhaust gazes mix with rainwater , etc.

Of water pollutants The first group of pollutants are regulated by law and it is possible to eliminate completely while the second group needs more attention, especially in urban areas. Although a large part of the contaminants to be found in nature , in which the main criterion is determined is the concentration in a given environment . Even if it is a natural element found in the environment to its high concentration is considered water pollution. Many of the chemical substances are toxic and can cause illness and death . Water pollution is a problem of global scale. It is assumed that the main cause of illness and death in the world and that more than 14,000 people a day die from diseases caused by water pollution .

Pollution Environmental pollution is the introduction in an environment of new , unusual for her agents ( physical agents , chemical compounds or species ) or exceeding the level of the normal annual average concentration. Contamination can be caused by natural ( natural ) factors or anthropogenic ( caused by human activity ) . Environmental pollution may be in the form of chemical substances or energy, such as noise , heat or light. Pollutants may be artificially produced substances or energy, or can occur naturally. Entrained naturally be considered contaminants if their content in the medium is greater than its natural level . Pollutants are classified as point or non-point pollutants . Sometimes the term "pollution" is expanded as definition of any substance with a higher concentration than the normal system in which it is situated .

Pollution For example , water is source of life, but in large quantities can be classified as a pollutant: if you drink enough large amount of water , the physical system of the body will break balance of which is that it can even cause premature death. Another example is the high noise that causes psychological imbalance and psychosis , this method was used as a weapon of war. Air pollution can cause the death of many organisms including humans. Ozone can cause respiratory failure , cardiovascular disease , chest pain and Congress . Water pollution is responsible for over 14,000 deaths per day in developing countries due to mixing and poor ( or no ) filtering sewage . Noise pollution leads to hearing loss, high blood pressure, stress and loss of sleep. Lead and other heavy metals cause neurological health problems. Chemical and radioactive substances can cause cancer , other types of cell mutations , improper development of the unborn child and others. http://www.youtube.com/watch?v=vP3pbh_-pu8

How to protect nature http://www.youtube.com/watch?v=tmhiglxga-4 http://www.youtube.com/watch?v=Z_eApyjB8sM

ECO PROBLEM THE END