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  1. Pollution | Definition, History, Types, & Facts | Britannica

    Apr 27, 2026 · pollution, the addition of any substance (solid, liquid, or gas) or any form of energy (such as heat, sound, or radioactivity) to the environment at a rate faster than it can be dispersed, diluted, …

  2. Pollution - Wikipedia

    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 …

  3. Air Pollution and Your Health - National Institute of Environmental ...

    Mar 18, 2026 · Air pollution is a familiar environmental health hazard. We know what we’re looking at when brown haze settles over a city, exhaust billows across a busy highway, or a plume rises from a …

  4. What Is Pollution and What Are the Types of Pollution?

    Jun 18, 2025 · Pollution is the introduction of harmful substances or contaminants into the environment, causing instability, disorder, harm, or discomfort to the ecosystem, i.e., physical systems or living …

  5. Pollution Explained: Types, Causes, and How to Reduce It

    Discover the different types of pollution and learn simple but impactful ways to cut down on them to create a more sustainable future.

  6. What Is Pollution? Definition, Types, and Impacts

    Learn how pollution is defined, the different forms it takes, and why its effects on health and ecosystems tend to worsen over time.

  7. Land Pollution - National Geographic Society

    Jul 30, 2025 · Pollution is the introduction of harmful materials into the environment. These harmful materials are called pollutants.

  8. Environmental Pollution: Types, Causes, Consequences, Measures

    Apr 30, 2026 · The detailed guide covers Environmental Pollution. Explore its meaning, types, causes, consequences and related concepts of pollutants and their types.

  9. What Is Pollution? - WorldAtlas

    Oct 17, 2018 · Pollution is the act of introducing harmful substances to the environment. Learn about the history, causes, and effects of pollution as well as ways of controlling it.

  10. Types of Pollution: Sources, Causes, Effects, and Prevention

    Feb 17, 2023 · Pollution is defined as introducing harmful substances (solid, liquid, or gas) or any form of energy (light, heat, sound, or radioactivity) into the environment. The harmful elements that …