Metadata

On this page you will find main metadata related with the indicator you have selected.
Other metadata is also available, on the Metada System website, through next button Metadata System

 

 Air quality index (Day)
Characteristic Description
Name Air quality index (Day) by Geographic localization and Quality classes; Annual
Regularity Annual
Source Portuguese Environment Agency, QualAr - Online database on air quality
First available period 2006
Last available period 2018
Dimensions
  • Data reference period
  • Geographic localization
  • Quality classes
Concepts
  • REFERENCE PERIOD:  Period to which the information refers and which may be a specific day or a time interval (month, fiscal year, calendar year, among others).
Measure unit (symbol) Day (Day)
Power of 10  0
Observations
Last update date 20/12/2019


information presented in 3/7/2024