Waterbase-Rivers: Hazardous substances

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The HazSub table contains data on hazardous substances in water measured at WISE-SoE river monitoring stations. Each station has been assigned a unique Waterbase identifier (WaterbaseID) which can be used to link the HazSubs data with their respective Stations and Pressures data. Each record has three special quality assurance fields. Their meaning is explained in the QA documentation which can be found in the "Additional information" section.

Category

European data

Records

839498

Table definition

Year	Year	year of aggregation period (aggregated data sets), or year in which sample taken (disaggregated data sets), in format YYYY. Year should be no later than that requested in the last Eionet-Water data request.	int(4)	0
PeriodLength	Period length	number of months in aggregation period.	int(4)	0
NumberOfSamples	Number of samples	number of samples in aggregation period.	int(4)	0
NoOfSubsites	Number of subsites		int(4)	0
QA_outlier	Quality assurance field - outlier flag	the highlighted data quality issues are explained in the QA documentation	int(4)	0
QA_station_problem	Quality assurance field - stations data quality issues flag	the highlighted stations data quality issues are explained in the QA documentation	int(4)	0
LimitOfDetection	Limit of detection	concentration for which there is a desirably small probability (around 5%) that the determinand will not be detected, i.e. there is a 95% probability that the determinand will be detected.	float(8)	0
LimitOfDetermination	Limit of determination	the smallest concentration that can be distinguished from the analytical blank at a chosen level of statistical confidence (usually 95%).	float(8)	0
Mean	Average concentration over aggregation period		float(8)	0
Minimum	Minimum concentration over aggregation period		float(8)	0
Maximum	Maximum concentration over aggregation period		float(8)	0
Median	Median concentration over aggregation period		float(8)	0
SO4	Concentration of sulphate	mg/l	float(8)	0
Ca	Concentration of calcium	mg/l	float(8)	0
Mg	Concentration magnesium	mg/l	float(8)	0
Na	Concentration of natrium	mg/l	float(8)	0
K	Concentration of kalium	mg/l	float(8)	0
HCO3	Concentration of hydrogen carbonate	mg/l	float(8)	0
Cl	Concentration of chloride	mg/l	float(8)	0
Standarddeviation	Standard deviation	standard deviation of concentration values of aggregated data. On aggregation, sample concentration values recorded as below the limit of detection or determination have been replaced with a value equivalent to half the limit of detection or determination.	float(8)	0
Hardness	Water hardness		float(8)	0
Suspendedparticulatematter	Concentration of suspended particulate matter (such as clay or other mineral particles, detrital particles, bacteria and algal cells)	mg/l	float(8)	0
DissolvedOrganicMatter	Concentration of dissolved organic matter	mg/l	float(8)	0
Ph	pH	pH = -log[H]	float(8)	0
Temperature	Mean annual water temperature	C (degrees Celsius)	float(8)	0
SampleDepth	Sample depth	depth at which sample taken in m below water surface	numeric(5)	0
CountryCode	Country Code	ISO3166 two digit code	nvarchar(2)	-1
WaterbaseID	Unique Waterbase Identifier	represents the EWN groundwater body code	nvarchar(50)	-1
NationalStationID	National station ID	Identifier of the monitoring station for rivers, lakes, transitional, coastal and marine waters unique at the national level.	nvarchar(50)	0
CASNumber	CAS Number	Chemical Abstract Service Number of the hazardous substance, as defined in the codelist.	nvarchar(50)	0
Determinand_HazSubs	Name of Hazardous Substance Determinand		nvarchar(255)	0
Unit_hazsubs	Unit	unit of measurement of hazardous substances	nvarchar(20)	0
AggregationPeriod	Period of aggregation	Annual = aggregated over whole year, Summer = aggregated over summer months, Winter = aggregated over winter months	nvarchar(20)	0
MethodOfAggregation	Method of aggregation	Method of aggregation (dimension and summary statistic)	nvarchar(100)	0
Cen_iso	CEN/ISO	CEN/ISO code of the methods.	nvarchar(100)	0
LimitFlag	Limit of Detection or Determination Flag	Flag to indicate sample below analytical limit of detection or determination	nvarchar(20)	0
Remarks	Remarks		nvarchar(0)	0
QA_LRviolations	Quality assurance field - numerical list of logical rules violated in record	tested logical rules are explanained in QA documentation.	nvarchar(50)	0