Definition of pollutant in English:



  • A substance that pollutes something, especially water or the atmosphere.

    ‘chemical pollutants’
    [as modifier] ‘pollutant gases’
    • ‘However, some studies also focused on the mechanisms by which particles without organic pollutants cause carcinogenic effects.’
    • ‘Recently attention has been focused on the assessment of biological risks of low-level exposure to environmental pollutants.’
    • ‘A global pollutant of most aquatic systems, nitrate has the potential to be an endocrine disrupting contaminant.’
    • ‘Widespread environmental pollutants may retard puberty, suggests a new study of adolescents.’
    • ‘Exactly how air pollutants increase the risk of death is not well known.’
    • ‘Incredibly low concentrations of a pollutant in the environment can be concentrated enormously by the food chain.’
    • ‘At each link in the chain, the concentration of pollutants increases.’
    • ‘Pentachlorophenol (PCP) is a good example of a nasty environmental pollutant.’
    • ‘Unfortunately for hayfever sufferers, pollen is a natural pollutant of the air.’
    • ‘Computer models of water currents can also be used to predict the fate of pollutants released into the water.’
    • ‘The emphasis is not on taxing pollutants or simply outlawing pollutants.’
    • ‘Vast factories soon began to pour pollutants into the atmosphere in ever increasing quantities.’
    • ‘Fugitive emissions can make a significant contribution to total emissions of air pollutants from many industries.’
    • ‘Many scientists have studied the effects of pollutants on the ozone layer, often with startling results.’
    • ‘The finding could help determine the background levels of various water pollutants.’
    • ‘Habitats in San Francisco Bay are impaired by pollutants including mercury.’
    • ‘The release of industrial pollutants into the atmosphere is believed to accelerate the process.’
    • ‘Studies examining the effects of air pollutants often use a single compound.’
    • ‘There are no direct data to assess the potential effects of contamination by air-borne pollutants on arctic insects.’