Polyaromatic hydrocarbons (PAH) and their metabolites 2018 sediment data
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Dataset information
Catalog
Country of origin
Updated
Created
2018.06.28
Available languages
English
Keywords
HOLAS2 2018 Core indicator, Oceanographic geographical features, MADS, Core indicator
Datasource
Quality scoring
155
Dataset description
This dataset represents the underlying sediment data on core indicator Polyaromatic hydrocarbons (PAH) and their metabolites.
The core indicator evaluates the status of the marine environment based on concentrations of Polyaromatic hydrocarbons (PAH) in sediment and biota. Quantitative threshold value is used to evaluate if core indicators status is Achieve, Fail or Not assessed. As There is no commonly agreed threshold value for measuring metabolites available, this report only considers concentrations of contaminants.
This dataset displays the result of the indicator in HELCOM Assessment Scale 4 (Division of the Baltic Sea into 17 sub-basins and further division into coastal and off-shore areas and division of the coastal areas by WFD water types or water bodies).
Attribute information:
"region" = name of subbasin
"country" = country
"station" = Unique code for the station
"stationNam" = name for the station
"determinan" = determinant parameter (ANT = anthracene)
"detGroup" = the grouping of determinands used to display the results
"_shape" = shape used to map assessment results
"colour" = colour used to map assessment results
"l3area" = HELCOM assessment unit on scale 3
"l4area" = HELCOM assessment unit on scale 4
"nyall" = total number of years of data
"nyfit" = number of years of data used in the assessment
"nypos" = number of years with at least one measurement above the limit of detection
"lastyear" = most recent year of data
"prtrend" = the significance of the change over the most recent 20 years; for the assessment conducted in November 2017 and published in June 2018, this is the period 1996-2016
"rtrend" = annual ‘linear’ change over the most recent 20 years
"meanLY" = fitted value in last monitoring year
"clLY" = upper one-sided 95% confidence limit on fitted value in last monitoring year
"EQS" = Threshold value
"EQSdiff" = difference between clLY and EQS
"EQSbelow" = whether the mean value in the last monitoring year is significantly below EQS
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