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    pollution
    /pəˈl(j)uːʃn/

    noun

    • 1. the presence in or introduction into the environment of a substance which has harmful or poisonous effects: "the level of pollution in the air is rising" Similar contaminationcontaminatingadulterationadulteratingOpposite purity

    More definitions, origin and scrabble points

  2. Oct 17, 2018 · Pollution is the act of introducing harmful substances to the environment that results in harming the natural surroundings. Substances that cause pollution are referred to as pollutants. These polluting substances are so diverse and they include chemical products, waste material, light, heat, and noise among others.

  3. en.wikipedia.org › wiki › PollutionPollution - Wikipedia

    Pollution is the introduction of contaminants into the natural environment that cause adverse change. Pollution can take the form of any substance (solid, liquid, or gas) or energy (such as radioactivity, heat, sound, or light). Pollutants, the components of pollution, can be either foreign substances/energies or naturally occurring contaminants.

  4. Mar 6, 2024 · Pollution is the introduction of harmful materials into the environment. These harmful materials are called pollutants. Pollutants can be natural, such as volcanic ash. They can also be created by human activity, such as trash or runoff produced by factories. Pollutants damage the quality of air, water, and land.

  5. May 21, 2024 · Pollution, addition of any substance or form of energy to the environment at a rate faster than it can be dispersed or stored in a harmless form. The major kinds of pollution are usually classified by environment and include air, water, and land pollution. Learn more about the history of pollution.

  6. Pollution occurs when an amount of any substance or any form of energy is put into the environment at a rate faster than it can be dispersed or safely stored. The term pollution can refer to both artificial and natural materials that are created, consumed, and discarded in an unsustainable manner.

  7. 4 days ago · Air pollution, release into the atmosphere of various gases, finely divided solids, or finely dispersed liquid aerosols at rates that exceed the natural capacity of the environment to dissipate and dilute or absorb them.

  8. Air pollution – the combination of outdoor and indoor particulate matter and ozone – is a risk factor for many of the leading causes of death, including heart disease, stroke, lower respiratory infections, lung cancer, diabetes, and chronic obstructive pulmonary disease (COPD).

  9. Mar 6, 2024 · Air pollution consists of chemicals or particles in the air that can harm the health of humans, animals, and plants. It also damages buildings. Pollutants in the air take many forms. They can be gases, solid particles, or liquid droplets. Sources of Air Pollution. Pollution enters the Earth's atmosphere in many different ways.

  10. Jun 25, 2024 · Air pollution is contamination of the indoor or outdoor environment by any chemical, physical or biological agent that modifies the natural characteristics of the atmosphere. Household combustion devices, motor vehicles, industrial facilities and forest fires are common sources of air pollution.

  11. Feb 4, 2019 · Air pollution is a mix of particles and gases that can reach harmful concentrations both outside and indoors. Its effects can range from higher disease risks to rising...

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