Reference WATERBASE - Rivers: chemical quality data

Data Table

This page was archived on 05 Dec 2016 with reason: Other (The dataset is replaced by Waterbase - Water Quality dataset, which combines Waterbase - Rivers, Lakes and Groundwater into one. It's available at http://www.eea.europa.eu/data-and-maps/data/waterbase-water-quality/.)

Chemicals table - this table contains data on chemical quality measured at the EUROWATERNET river monitoring stations. Chemical and Station data can be linked using the WB_ID.

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European data

Records

398285

Table definition

90_ILE	90th Percentile concentration over aggregation period		float(8)
DETERMINAND	Determinand name	As defined in Metadata section	nvarchar(30)
MINIMUM	Minimum concentration over aggregation period		float(8)
REMARKS	Remarks		nvarchar(100)
MAXIMUM	Maximum concentration over aggregation period		float(8)
PERIOD_ LNGTH	Period Length	Number of months in aggregation period	int(4)
PERIOD	Period of aggregation	Annual = aggregated over whole year, Summer = aggregated over summer months, Winter = aggregated over winter months	nvarchar(10)
DET_LMT	Limit of Detection	Note: Concentration for which there is a desirably small probability that the determinand will not be detected (usually detected with 95% confidence)	float(8)
DATA_SRC	Data Source		nvarchar(20)
WB_ID	WATERBASE ID	Unique WATERBASE identifier, representing EUROWATERNET station	int(4)
10_ILE	10th Percentile concentration over aggregation period		float(8)
YEAR	Year of measurements	range 1965-2001 (actual time series depends on country and determinand)	int(4)
UNITS	Unit of measurement	As defined in Metadata section	nvarchar(30)
STDV	Standard Deviation of concentration over aggregation period		float(8)
MEDIAN	Median concentration over aggregation period		float(8)
AVERAGE	Average concentration over aggregation period		float(8)
NO_SAMPLES	Number of Samples in aggregation period		int(4)