Waterbase - TCM: QualitySedimentD

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The QualitySedimentD table contains disaggregated data on hazardous substances in sediment, measured at Eurowaternet transitional, coastal or marine water monitoring stations. Each station has been assigned a unique Waterbase identifier (WaterbaseID) which can be used to link the Quality data with their respective Stations and Pressure data.

Category

European data

Records

11743

Table definition

Fraction	Fraction	upper limit of particle size in analysed fraction expressed in µm. Blank if whole sediment has been analysed.	int(4)	0
Year	Year	year of aggregation period or year in which sample taken, in format YYYY.	int(4)	0
Month	Month	month in which sample was taken, values in range 0-12 (it is possible that the month has not been supplied, in which case the value will be 0).	int(4)	0
Day	Day	day in which sample was taken, values in range 0-31 (it is possible that the day has not been supplied, in which case the value will be 0).	int(4)	0
Unit	Unit	unit of measurement.	nvarchar(30)	0
Sampler	Sampler	name of sampling equipment used at transitional, coastal or marine water monitoring station.	nvarchar(200)	0
SampleID	Sample ID	unique sample identifier required if multiple samples taken on same day. SampleID default value is 0.	nvarchar(50)	0
CASNo	Chemical abstract service number	chemical abstract service number of determinand.	nvarchar(20)	0
Determinand	Determinand	determinand name.	nvarchar(200)	0
OrganicCarbon	Organic carbon	average organic carbon content expressed as % of total dry weight.	float(8)	0
DryWetRatio	Dry wet ratio	ratio of dry weight to wet weight expressed as %.	float(8)	0
SedimentDepth	Depth of sediment	depth of sediment at transitional, coastal or marine water monitoring station expressed in m.	float(8)	0
SedimentTop	Top of sediment layer	top of analysed sediment layer measured from the sediment surface expressed in cm. Value will be 0 if top of sediment layer is the sediment surface for at least one sample in the aggregate.	float(8)	0
SedimentBottom	Bottom of sediment layer	bottom of analysed sediment layer measured from the sediment surface expressed in cm.	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. For observations reported as below the analytical limit, the field will contain the upper (reporting) limit.	float(8)	0
LimitOfDetectionFlag	Limit of detection flag	flag to indicate sample below analytical limit of detection in format <.	varchar(1)	0
Basis	Basis	basis of aggregate: D = Dry, W = Wet.	varchar(1)	0
CountryCode	Country Code	ISO 3166-alpha-2 code elements.	varchar(2)	0
WaterbaseID	Waterbase ID	Internally produced, unique identifier used to represent the transitional, coastal or marine water monitoring station, in the format: CountryCode_WaterDataSet_NationalStationID (e.g. GB_TCM_12345).	varchar(200)	-1
Graintype	Grain type	sediment type description if no analysis of grain size: M = Mud, FS = Fine sand, MS = Middle sand, CS = Coarse sand, G = Gravel.	varchar(2)	0