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pollutant    音标拼音: [pəl'utənt]

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  • POLLUTANT Definition Meaning - Merriam-Webster
    The meaning of POLLUTANT is something that pollutes; especially : something (such as anthropogenic waste) that makes an environment unsuitable or unsafe for use How to use pollutant in a sentence
  • Pollutant - Wikipedia
    A pollutant or novel entity[1] is a substance or energy introduced into the environment that has undesired effect, or adversely affects the usefulness of a resource These can be both naturally forming (i e minerals or extracted compounds like oil) or anthropogenic in origin (i e manufactured materials or byproducts)
  • Pollution - Education | National Geographic Society
    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
  • POLLUTANT | English meaning - Cambridge Dictionary
    POLLUTANT definition: 1 a substance that pollutes: 2 a substance that pollutes: 3 a harmful substance that causes… Learn more
  • POLLUTANT Definition Meaning - Dictionary. com
    pollutant A substance or condition that contaminates air, water, or soil Pollutants can be artificial substances, such as pesticides and PCBs, or naturally occurring substances, such as oil or carbon dioxide, that occur in harmful concentrations in a given environment
  • Pollution | Definition, History, Types, Facts | Britannica
    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, decomposed, recycled, or stored in some harmless form
  • POLLUTANT definition and meaning | Collins English Dictionary
    A pollutant is a chemical or biological substance which harms water, air, or land quality Burning also releases dioxins, which are persistent environmental pollutants Many VOC chemicals are hazardous air pollutants





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