Chemistry data - Data & products on marine water quality

External Data Spec Published 09 Oct 2018
1 min read
EMODnet Data portals on chemistry
information.png Provider:
European Marine Observation and Data Network (EMODnet)
information.png Dataset URL:
http://emodnet-chemistry.maris2.nl/v_cdi_v3/browse_step.asp

Related content

Indicators using this data

Chlorophyll in transitional, coastal and marine waters  The indicator illustrates the geographical distribution and trends in mean summer surface concentrations of chlorophyll-a (micrograms per litre) in the regional seas of Europe. The summer period is defined as: June to September for stations north of latitude 59 degrees in the Baltic Sea (Gulf of Bothnia and Gulf of Finland) May to September for all other stations The following marine regions and subregions are covered, in line with the Marine Strategy Framework Directive (sub)regions:   Regions Subregions Baltic Sea None North-East Atlantic Ocean Greater North Sea Celtic Seas Bay of Biscay and Iberian coast Macaronesian biogeographic region Mediterranean Sea Western Mediterranean Sea Adriatic Sea Ionian Sea and Central Mediterranean Aegean-Levantine Sea Black Sea None  
Nutrients in transitional, coastal and marine waters The indicator illustrates the following levels and trends in concentrations in the regional seas of Europe: winter means of dissolved inorganic nitrogen (nitrate + nitrite + ammonium) winter means of orthophosphate annual means of total nitrogen annual means of total phosphorus The winter period is defined as follows: January, February and March for stations east of longitude 15 degrees (Bornholm) in the Baltic Sea January and February for all other stations. The following marine (sub)regions are covered, in line with the Marine Strategy Framework Directive (sub)regions: Regions Subregions Baltic Sea None North-East Atlantic Ocean Greater North Sea Celtic Seas Bay of Biscay and the Iberian coast Macaronesian biogeographic region Mediterranean Sea Western Mediterranean Sea Adriatic Sea Ionian Sea and Central Mediterranean Aegean-Levantine Sea Black Sea None
Hazardous substances in marine organisms This indicator describes the levels of and trends in the levels of eight hazardous substances in marine biota in European seas , based on individual assessments of monitoring data for the following substances: mercury (Hg) and its compounds; cadmium (Cd) and its compounds; lead (Pb) and its compounds; HCB; PCBs, using chlorinated biphenyls CB28, CB52, CB101, CB118, CB138, CB153 and CB180 as representatives; the pesticide DDT (using pp’DDE as a representative); the pesticide Lindane (1,2,3,4,5,6-hexachlorocyclohexane); the polyaromatic hydrocarbon BaP. The indicator is based on data on the levels of these substances measured in organisms from the regional seas as follows: Baltic Sea — Atlantic herring (Clupea harengus); North-East Atlantic Ocean — blue mussel (Mytilus app), Atlantic cod (Gadus morhua), flounder (Platichtys flesus); Mediterranean Sea — Mediterranean mussel (Mytilus galloprovinicialis); Black Sea — Mediterranean mussel (Mytilus galloprovinicialis).

Produced figures

Annual mean total nitrogen (NO2+NO3) concentrations observed in European seas, 2013-2017 The map shows the oxidised nitrogen concentrations in the upper 10 m of the water column, observed in the years 2013-2017.
Trends in summer chlorophyll concentrations in European Seas, 1990-2017 The map shows trends per station in chlorophyll concentrations per station in the upper 10 m of the water column, as observed during summer in the years 1990-2017. Red: significant increase; Green: significant decrease; Grey: no significant trend. Small symbols: ≤10 years of data; Large symbols: >10 years of data.
Mean chlorophyll-a (Chla) concentrations in European seas, 2013-2017 The map shows chlorophyll concentrations in the upper 10 m of the water column, observed in the summers of the years 2013-2017.
Trends in winter mean dissolved inorganic nitrogen concentrations in European seass The map shows trends per station in dissolved inorganic nitrogen (DIN) concentrations in the upper 10 m of the water column, observed in European Seas during winter time during the period 1990-2017.
Trends in winter mean orthophosphate concentrations in European seas The map shows the trends per station in orthophosphate (PO4) concentrations in the upper 10 m of the water column, observed during winter of the years 1990-2017.
Trends in annual mean total phosphorus concentrations in European Seas The map shows trends per station in phosphorus concentrations in the upper 10 m of the water column, observed during winter in the years 1990-2017.
Trends in annual mean total nitrogen concentrations in European seas The map shows trends per station in total nitrogen concentrations in the upper 10 m of the water column, observed during the years 1990-2017.
Winter mean orthophosphate concentrations in European seas, 2013-2017 The map shows mean orthophosphate concentrations in the upper 10 m of the water column, observed in winter of the years 2013-2017.
Summer/autumn oxygen concentrations in water column near the seafloor, 2013-2017 The map shows dissolved oxygen concentrations in the water column near the seafloor, observed in summer/autumn of the years 2013-2017. Purple: <2 mg/l; Light purple: 2-4 mg/l; Light green: 4-6 mg/l; Green: >6 mg/l
Annual mean total phosphorus concentrations in European seas, 2013-2017 The map shows total phosphorus concentrations in the upper 10 m of the water column, observed in the years 2013-2017.
Trends in summer/autumn oxygen concentrations in the water column near the seafloor The map shows trends per station in dissolved oxygen concentrations in the water column near the seafloor, observed in summer/autumn of the years 1990-2017. Purple: significant decrease; green: significant increase; grey: no significant trend. Small symbols: ≤10 years of data; large symbols: >10 years of data.
Hazardous substances in marine organisms in European seas The maps show eight contaminants distributed in four regional seas (no data available for the Black Sea). In each map the locations where the contaminant was measured are coloured to indicate which class was registered; green (low concentration), yellow (moderate concentration) or red (high concentration). The pie charts cover the North Atlantic Sea, the Baltic Sea and the Mediterranean Sea, showing the percentage of each class of the regional seas. Any regional trend for a particular class is indicated by black arrows.
Winter dissolved inorganic nitrogen (NH4 + NO3 + NO2) concentration observed in European seas, 2013-2017 The map shows dissolved dissolved inorganic nitrogen (DIN) (NH4 + NO3 + NO2) concentrations in the upper 10 m of the water column, observed in winter of the years 2013-2017.

Visualisations produced

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