Online Google Dictionary

pollutant 中文解釋 wordnet sense Collocation Usage Collins Definition
  1. waste matter that contaminates the water or air or soil
  2. A pollutant is a waste material that pollutes air, water or soil, and is the cause of pollution.
  3. (Pollutants) Pollution is the introduction of contaminants into a natural environment that causes instability, disorder, harm or discomfort to the ecosystem i.e. physical systems or living organisms. Pollution can take the form of chemical substances or energy, such as noise, heat, or light. ...
  4. A foreign substance that makes something dirty, or impure, especially waste from human activities
  5. (Pollutants (pollution)) unwanted chemicals or other materials found in the air. Pollutants can harm health, the environment and property. Many air pollutants occur as gases or vapors, but some are very tiny solid particles: dust, smoke or soot.
  6. (POLLUTANTS) substances that have a harmful effect on human and/or ecosystem health when present in high enough concentrations in water, air or soil. ...
  7. (Pollutants) Amphetamines; methylenedioxymethamphetamine (MDMA)
  8. (Pollutants) Emissions of carbon dioxide (CO2) sulfur dioxide (SO2), nitrogen oxides (NOx), mercury (Hg), small particulates (PM2.5) and large particulates (PM10).
  9. (Pollutants) Environmental contamination that can trigger a COPD exacerbation, indoor or outdoor. Everyday pollutants include tobacco smoke, dust, automotive exhaust, cleaning products, and industrial fumes.
  10. (Pollutants) Materials can include, but are not limited to, trash, paper, plastics, cleaning chemicals, animal waste, yard wastes, used oil, fertilizers, pesticides, sediment, metals, fuels, solvents, detergents and fecal coliform.
  11. (pollutants) Contaminants. Any introduced gas, liquid, solid, inorganic or organic matter, or living microorganisms that makes a resource unfit for a specific purpose.
  12. An irritant or contaminant, whether in solid, liquid, or gaseous form, including smoke, vapor, soot, fumes, acids, alkalis, chemicals and waste
  13. Strictly, too much of any substance in the wrong place or at the wrong time is a pollutant. More specifically, atmospheric pollution may be defined as the presence of substances in the atmosphere, resulting from man-made activities or from natural processes that cause adverse effects to human ...
  14. any substance that directly or indirectly creates an adverse human health or environmental effect when introduced into any environmental media.
  15. Generally, any substance introduced into the environment that adversely affects the usefulness of a resource.
  16. A contaminant existing at a concentration high enough to endanger the environment or the public health or to be otherwise objectionable.
  17. Particles, gases, or liquid aerosols in the atmosphere which have an undesirable effect on humans or their surroundings. Something unfavorable to health and life that has been added to the environment.
  18. A foreign substance that adversely affects water quality.
  19. Any material entering the environment that has undesired effects.
  20. Anything that causes or contributes to pollution. Pollutants may include, but are not limited to, paints, varnishes and solvents; oil and other automotive fluids; non-hazardous liquid and solid wastes and yard wastes; refuse, rubbish, garbage, litter or other discarded or abandoned objects, ...
  21. A contaminant that negatively affects the physical, chemical or biological properties of the environment.
  22. Any undesirable solid, liquid or gaseous matter in an environmental medium: "undesirability" is often concentration-dependent, low concentrations of most substances being tolerable or even essential in many cases. ...
  23. A substance that destroys the purity of air, water, or land.
  24. A pollutant is something that makes our environment dirty or harmful. Ozone is a pollutant because it makes the air unhealthy to breathe. (Back to Hot Summer Days)
  25. Dredged spoil, solid waste, incinerator residue, sewage, garbage, sewage sludge, munitions, chemical wastes, biological materials, radioactive materials, heat, wrecked or discarded equipment, rock, sand, cellar dirt, and industrial, municipal, and agricultural waste discharged into water. ...