pollution

Topics: Pollution, Water pollution, Waste Pages: 5 (1330 words) Published: October 17, 2013
Pollution is the introduction of contaminants into the natural environment that cause adverse change. Pollution can take the form of chemical substances or energy, such as noise, heat or light. Pollutants, the components of pollution, can be either foreign substances/energies or naturally occurring contaminants. Pollution is often classed as point source or nonpoint source pollution.

There are 6 (six) types of pollution that are going to be discussed in this site, namely air, water, noise, land, radioactive, and thermal. Please proceed to the following links to learn anyone of them. •Air Pollution

Air pollution is indication of disturbances to the composition of compounds in the atmosphere •Water Pollution
Water pollution is contamination of water by foreign matter that deteriorates the quality of the water. Water pollution covers pollutions in liquid forms like ocean pollution and river pollution •Land Pollution

Land degradation is a process in which the value of the biophysical environment is affected by combination of human-induced processes acting upon the land.[1] also environmental degradation is the gradual destruction or reduction of the quality and quantity of human activities animals activities or natural means example water causes soil erosion, wind, etc. •Noise Pollution

Noise pollution is the disturbing or excessive noise that may harm the activity or balance of human or animal life. The source of most outdoor noise worldwide is mainly caused by machines and transportation systems, motor vehicles, aircrafts, and trains.[1][2] Outdoor noise is summarized by the word environmental noise. Poor urban planning may give rise to noise pollution, since side-by-side industrial and residential buildings can result in noise pollution in the residential areas. •Radioactive Pollution

Radioactive wastes are wastes that contain radioactive material. Radioactive wastes are usually by-products of nuclear power generation and other applications of nuclear fission or nuclear technology, such as research and medicine. Radioactive waste is hazardous to most forms of life and the environment, and is regulated by government agencies in order to protect human health and the environment. •Thermal Pollution

Thermal pollution is the degradation of water quality by any process that changes ambient water temperature. A common cause of thermal pollution is the use of water as a coolant by power plants and industrial manufacturers. When water used as a coolant is returned to the natural environment at a higher temperature, the change in temperature decreases oxygen supply, and affects ecosystem composition.Urban runoff–stormwater discharged to surface waters from roads and parking lots–can also be a source of elevated water temperatures. Q2

Air pollution is indication of disturbances to the composition of compounds in the atmosphere, as it may be summarized as shown: •excess emission of gases/vapors into atmosphere
saturation of chemical compounds/particulates
rate of dissipation < (smaller than) rate of absorption through various cycles (i.e. carbon and nitrogen cycle) •emergence of new chemical reactions of reactive and non-biodegradable compounds. Global warming, acid rain, smog, ozone depletion are some effects of air pollution.In relation to this, we may observe the cycle which involves in our daily lives: carbon and nitrogen cycle.These 2 cycles are the most important of all, regulating the composition of carbon and nitrogen of Earth. Imagine the reverse is to happen....

Sources and Methods
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We can classify major sources that lead to air pollution to the following categories: •motor vehicle exhaust
heat and power generation facilities
industrial processes
auto manufacturing
fertilizers plants
building demolition
solid waste disposal
solvent evaporation
volcanic eruption
fuel production
roadway construction
electrical components...
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