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pollutant    音标拼音: [pəl'utənt]

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  • 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
  • Air quality, energy and health
    Pollutants with the strongest evidence for public health concern include particulate matter (PM), carbon monoxide (CO), ozone (O 3), nitrogen dioxide (NO 2) and sulfur dioxide (SO 2) Health problems can occur as a result of both short- and long-term exposure to these various pollutants
  • What Is A Pollutant? Understanding Pollution Types - MAWEB
    Pollutants are substances that cause harm to the environment or human health when they accumulate in the air, water, or soil They may originate from human activities or natural sources, manifesting in various forms such as liquids, solids, gases, or even noise
  • Pollutant | Environmental Sciences | Research Starters - EBSCO
    A pollutant refers to any substance that is released into the environment and causes harm, contaminating natural resources in the process These substances can arise from both natural sources, such as volcanic ash, and human activities, like industrial emissions
  • 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
  • What Is a Pollutant? Types, Sources, and Examples
    Therefore, a pollutant’s defining characteristic is its capacity to cause undesirable effects or harm when present in excessive amounts or in an unsuitable place Pollutants are categorized based on their physical and chemical properties, as well as the environmental medium they primarily affect
  • POLLUTANT Definition Meaning - Merriam-Webster
    The meaning of POLLUTANT is something that pollutes; especially : something (such as waste created by human activity) that makes an environment unsuitable or unsafe for use
  • Pollutant Definition Meaning | Britannica Dictionary
    pollutant (noun) pollutant pə ˈ luːtn̩t noun plural pollutants Britannica Dictionary definition of POLLUTANT [count] : a substance that makes land, water, air, etc , dirty and not safe or suitable to use : something that causes pollution air water pollutants
  • POLLUTANT definition and meaning | Collins English Dictionary
    Pollutants are substances that pollute the environment, especially gases from vehicles Among pollutants from vehicles, lead from gasoline engines has attracted most attention Children in strollers are more vulnerable than adults to attack from airborne pollutants such as exhaust fumes
  • Pollutant - Energy Education
    Pollutants are the elements, molecules and particles involved in pollution - life can be harmed when exposed to these materials, and the effects of them on humans and plants are well known Pollutants can be introduced into the environment in many ways, both naturally and by humans





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