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

 

 Proportion of groundwater quality monitoring stations (%)
Characteristic Description
Name Proportion of groundwater quality monitoring stations (%) by Nitrates concentration class; Quadrennial
Regularity Quadrennial
Source Portuguese Environment Agency
First available period 2008 - 2011
Last available period 2016 - 2019
Dimensions
  • Data reference period
  • Geographic localization
  • Nitrates concentration class
Concepts
  • REFERENCE PERIOD:  The length of time for which data are collected, e.g. a specific day, month or year.
  • FRESH SURFACE WATER:  Water which flows over, or rests on the surface of a land mass, natural watercourses such as rivers, streams, brooks, lakes, etc., as well as artificial watercourses such as irrigation, industrial and navigation canals, drainage systems, alluvium (subsurface water) and natural and artificial reservoirs. Excluded are sea-water, permanent bodies of stagnant water both natural and artificial, and transitional waters, such as brackish swamps, lagoons and estuaries.
Formule (No. of groundwater quality monitoring stations by quality class/ Total no. of groundwater quality monitoring stations)*100
Measure unit (symbol) Percentage (%)
Power of 10  0
Observations
Last update date 22/12/2020


information presented in 18/5/2024