What are pollutants and examples?

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What are pollutants and examples?

These are those which are emitted directly from the source and persist in the form in which they were added to the environment. Typical examples of pollutants included under this category are ash, smoke, fumes, dust, nitric oxide, sulphur dioxide, hydrocarbons etc.

What pollutant means?

A pollutant is a substance that is present in concentrations that may harm organisms (humans, plants and animals) or exceed an environmental quality standard. The term is frequently used synonymously with contaminant.

What are the six major pollutants?

These six pollutants are carbon monoxide, lead, nitrogen oxides, ground-level ozone, particle pollution (often referred to as particulate matter), and sulfur oxides.

What are the primary pollutants?

Primary pollutants are any type of pollutant directly into the environment….Types of primary pollutants include:

  • Nitrogen oxides (NOx)
  • Carbon monoxide (CO)
  • Volatile organic compounds (VOCs)
  • Sulfur oxides (SOx)
  • Particulate matter (PM)
  • Mercury.
  • and more.

What are common water pollutants?

Urban runoff can carry organic, inorganic, biological pollutants, oil, and grease. Nitrates, phosphates, coliform, sediment, trash, and other debris are also often found in storm water runoff.

What are the major water pollutants and their sources?

Various Causes of Water Pollution

  • Industrial Waste.
  • Sewage and Wastewater.
  • Mining Activities.
  • Marine Dumping.
  • Accidental Oil Leakage.
  • The burning of fossil fuels.
  • Chemical fertilizers and pesticides.
  • Leakage From Sewer Lines.

What are two main sources of groundwater pollution?

The significant sources of contamination in groundwater are farming chemicals, septic waste, landfills, uncontrolled hazardous waste, storage tanks, and atmospheric pollutants.

  • Agricultural Chemicals.
  • Septic Waste.
  • Landfills.
  • Hazardous Waste Sites.
  • Storage Tanks.
  • Atmospheric Pollutants.
  • Underground Pipes.
  • Road Salts.

What is main source of groundwater?

Most groundwater originates as meteoric water from precipitation in the form of rain or snow. If it is not lost by evaporation, transpiration or to stream runoff, water from these sources may infiltrate into the ground.

Who is responsible for most air pollution?

Top 5 most polluting countries

  1. China (30%) The world’s most populated country has an enormous export market, which has seen its industry grow to become a serious danger to the planet.
  2. United States (15%) The world’s biggest industrial and commercial power.
  3. India (7%)
  4. Russia (5%)
  5. Japan (4%)

Which is the most polluting country?

Bangladesh