Terms used in official statistics

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Ambient concentration


Amount of the particulate or gas pollutant per volume unit of air (also known as pollution concentration or level of substance in ambient air).

Pollution concentrations are used to estimate the level of air pollution by comparing them with permissible levels of substances in the air. The level of substances in the ambient air is the concentration of the substances in the ambient air in a fixed time period or fall of the substance in a fixed time period on the given area.

  • Act of 27 April 2001, the Environmental Law
    Place of publication: (Dz. U. z 2020 r. poz. 1219, z późn. zm.)

High-level terms

Contact person on methodology:
Beata Nowakowska