What is pollution?

  • (noun): The act of contaminating or polluting; including (either intentionally or accidentally) unwanted substances or factors.
    Synonyms: contamination
    See also — Additional definitions below


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. The Blacksmith Institute issues an annual list of the world's worst polluted places. In the 2007 issues the ten top nominees are located in Azerbaijan, China, India, Peru, Russia, Ukraine and Zambia.

Read more about Pollution.

Some articles on pollution:

Water Resources - Water Stress - Pollution and Water Protection
... Water pollution is one of the main concerns of the world today ... In addition to sewage, nonpoint source pollution such as agricultural runoff is a significant source of pollution in some parts of the world, along with urban stormwater runoff and chemical wastes dumped by ...
Environmental Issues With Mining
... In urbanised environments mining may produce noise pollution, dust pollution and visual pollution ...
Pollution - 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 ... 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 ...
Royce Brook - Pollution
... A high level of pollution exists in Royce Brook, especially rusting iron, soda cans, plastic bottles, and plastic bags which was documented in the research project of ...
Citizen And Consumer Movements In Japan
... protection of the environment from industrial pollution, and the safety (although not the cost) of consumer goods ... In the late 1960s, industrial pollution, symbolized by the suffering of victims of mercury poisoning (Minamata disease) caused by the pollution of ... and extending compensation to the victims of pollution ...

More definitions of "pollution":

  • (noun): Undesirable state of the natural environment being contaminated with harmful substances as a consequence of human activities.

Famous quotes containing the word pollution:

    Like the effects of industrial pollution ... the AIDS crisis is evidence of a world in which nothing important is regional, local, limited; in which everything that can circulate does, and every problem is, or is destined to become, worldwide.
    Susan Sontag (b. 1933)