Waterbase-Lakes: Hazardous substances

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The HazSub table contains data on hazardous substances in water measured at WISE-SoE lake 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

125759

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.	smallint(2)	0
Month	Month	month in which sample taken, values in range 0-12. If the month value has not been supplied the value will be 0.	smallint(2)	0
Day	Day	day in which sample was taken, values in range 0-31. If the day value has not been supplied the value will be 0.	smallint(2)	0
NoOfSubsites	Number of subsites		smallint(2)	0
NumberOfSamples	Number of samples	number of samples in aggregation period.	smallint(2)	0
QA_outlier	Quality assurance field - outlier flag	the highlighted data quality issues are explained in the QA documentation	smallint(2)	0
SampleDepth	Sample depth	depth at which sample taken in m below water surface	float(8)	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
Concentration	Concentration	concentration of determinand in sample. Concentration values recorded as below the limit of detection or determination should contain the limit of detection or determination in the concentration field, with the LimitFlag field set to &lt;.	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
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
SO4	Concentration of sulphate	mg/l	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
Ca	Concentration of calcium	mg/l	float(8)	0
Mg	Concentration magnesium	mg/l	float(8)	0
CountryCode	Country Code	ISO3166 two digit code	nvarchar(2)	-1
WaterbaseID	Unique Waterbase Identifier	represents the EWN groundwater body code	nvarchar(60)	-1
Determinand_HazSubs	Name of Hazardous Substance Determinand		nvarchar(50)	0
Unit_HazSubs	Unit	unit of measurement of hazardous substances	nvarchar(10)	0
CASNumber	CAS Number	Chemical Abstract Service Number of the hazardous substance, as defined in the codelist.	nvarchar(20)	0
SampleAnalysis	Sample analysis code	F = Analysis undertaken on filtered water sample; S=Analysis undertaken on suspended matter; T=Analysis undertaken on unfiltered water sample	nvarchar(1)	0
CEN_ISO	CEN/ISO	CEN/ISO code of the methods.	nvarchar(150)	0
MethodOfAggregation	Method of aggregation	Method of aggregation (dimension and summary statistic)	nvarchar(255)	0
LimitFlag	Limit of Detection or Determination Flag	Flag to indicate sample below analytical limit of detection or determination	nvarchar(1)	0
Remarks	Remarks		nvarchar(255)	0
QA_station_problems	Quality assurance field - stations data quality issues flag	the highlighted stations data quality issues are explained in the QA documentation	nvarchar(25)	0
QA_datatype_errors	Quality assurance field - data type and data definition errors	list of field names and their values where values do not follow official specifications. Details are explained in the QA documentation	nvarchar(255)	0