Reference WATERBASE - Groundwater: chemical quality data

Data Table

This page was archived on 16 Jun 2014 with reason: Other (Access to earlier versions of Waterbase-Groundwater data files have been restricted to authorised users only.)

The Quality table contains data on chemicals, nutrients and organic matter measured at the EUROWATERNET groundwater bodies. Each body has been assigned a unique WATERBASE identifier (WaterbaseID) which can be used to link the Quality data with their respective Bodies and Pressure data.

Data and maps

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Category

European data

Records

12683

Table definition

25Percentile	25Percentile	25th Percentile concentration during aggregation period	float(8)	0
Median	Median	Median concentration during aggregation period	float(8)	0
75Percentile	75Percentile	75th Percentile concentration during aggregation period	float(8)	0
Minimum	Minimum concentration over aggregation period		float(8)	0
Maximum	Maximum	Maximum concentration during aggregation period	float(8)	0
Mean	Mean	Average concentration during aggregation period	float(8)	0
Year	Year of measurements	range of years available: 1960 - 2001	int(4)	0
NoOfSites	Number of sampling sites investigated in the aggregation period		int(4)	0
Unit	Unit of measurement	As defined in meta data section "Unit"	nvarchar(8)	0
WaterbaseID	Unique Waterbase Identifier	Internally produced, unique identifier used to represent the EWN groundwater body code	nvarchar(20)	-1
AggregationPeriod	AggregationPeriod	Period of aggregation: Annual = aggregated over whole year, Summer = aggregated over summer months, Winter = aggregated over winter months	nvarchar(10)	0
Determinand	Determinand	Determinand name as defined in meta data section "Unit"	nvarchar(60)	0