Metainformaçao

REFERENCE PERIOD: &nbsp; The length of time for which data are collected, e.g. a specific day, month or year.
TREATED WASTEWATER: &nbsp; Wastewater after treatment of which is carried out in wastewater treatment plants (Portuguese acronym: ETAR) or in municipal septic tanks.
AVERAGE POPULATION: &nbsp; The average population during a calendar year, generally calculated as the arithmetic mean of the population on two consecutive years.

Metadata

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Population served by wastewater treatment plants (Series 2006-2009 - %)

Characteristic	Description
Name	Population served by wastewater treatment plants (Series 2006-2009 - %) by Geographic localization (NUTS - 2002); Annual
Regularity	Annual
Source	Statistics Portugal, National inventory of water supply and wastewater systems / physical and operational view
First available period	2006
Last available period	2009
Dimensions	Data reference period Geographic localization (NUTS - 2002)
Concepts	REFERENCE PERIOD: The length of time for which data are collected, e.g. a specific day, month or year. TREATED WASTEWATER: Wastewater after treatment of which is carried out in wastewater treatment plants (Portuguese acronym: ETAR) or in municipal septic tanks. AVERAGE POPULATION: The average population during a calendar year, generally calculated as the arithmetic mean of the population on two consecutive years.
Formule	(Population connected to wastewater treatment plants/ Annual average resident population)*100
Measure unit (symbol)	Percentage (%)
Power of 10	0
Observations
Last update date	03/02/2012