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External Data Spec

Waterbase - Water Quality ICM, 2022

External Data Spec Published 20 Apr 2023
1 min read
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European Environment Agency (EEA)
information.png Dataset URL:
https://sdi.eea.europa.eu/catalogue/srv/eng/catalog.search#/metadata/bdeadea2-cfaf-4724-b002-816d71c7e361

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Figure Number of time series available showing increasing, decreasing or no trends in dissolved inorganic nitrogen and orthophosphate concentrations for each regional sea during the period 2017-2021 The different sea regions are presented in the Y axis. The X axis corresponds to the number of time series with statistically significant decreasing trends (green), increasing trends (orange) and no trends (grey). Statistical significance at p<0.05.
Figure Trends in dissolved inorganic nitrogen and orthophosphate concentrations in Europe’s transitional, coastal and marine waters, 1980-2021 Trends in concentrations of nitrogen (dissolved inorganic nitrogen—DIN) and phosphorus (orthophosphate) in the upper 10m of the water column in European seas during the season of low phytoplankton growth (SLPG) are shown for the period 1980-2021. Green circles indicate stations with significant (p<0.05) decreasing trends; orange circles show stations with significant (p<0.05) increasing trends; and grey circles show stations with no significant trends. In these cases, p is a statistical term describing the probability that the trend is significant.
Figure Occurrence of reduced oxygen concentrations in Europe's coastal and marine waters (average for the years 2011-2022) Observations are aggregated at the level of 100*100 km grid cells, and show the mean 25-percentile of dissolved oxygen (DO) concentrations subdivided in four classes (<2 mg/l, 2-4 mg/l, 4-6 mg/l, >6 mg/l). The pie charts indicate the relative spatial coverage of areas with the four different concentrations of DO, aggregated by Marine Strategy Framework Directive (MSFD) marine regions - North-East Atlantic Ocean, Baltic Sea, Mediterranean Sea and Black Sea (smaller pie charts) and for all regions combined (large pie chart in centre). Oxygen concentrations above 6mg/l are considered to support marine life with minimal problems while concentrations less than 2mg/l (hypoxia, oxygen deficiency) are considered to cause severe problems.
Figure Average concentrations and trends of surface chlorophyll-a in Europe's transitional, coastal and marine waters Average summer surface chlorophyll-a concentration (left) and trends (right), in locations recently updated (last update>2016) with at least 5 years of observations, in the period between 1980 and 2021. Green circles indicate stations with significant (p<0.05) decreasing trends (i.e., improving); orange circles show stations with significant (p<0.05) increasing trends (i.e., deteriorating); and grey circles show stations with no significant trends. Colour keys of symbols and values are included in the legend.
Figure
Archived
Average concentrations and trends of surface chlorophyll-a in transitional, coastal and marine waters surrounding Europe Average summer surface chlorophyll-a concentration (left) and trends (right), in locations recently updated (last update>2016) with at least 5 years of observations, in the period between 1980 and 2021. Green circles indicate stations with significant (p<0.05) decreasing trends (i.e., improving); orange circles show stations with significant (p<0.05) increasing trends (i.e., deteriorating); and grey circles show stations with no significant trends. Colour keys of symbols and values are included in the legend.
Figure Percentage of reported monitoring sites with pesticides exceeding thresholds in surface waters, different sized rivers, lakes and groundwater in European countries, 2016-2021 The figure shows the percentage of monitoring sites with threshold exceedances of pesticides in surface waters, different sized rivers, lakes and groundwater in European countries. This was used to examine threshold exceedances according to Surface Waters; Rivers, small; Rivers, medium; Rivers, large; Lakes, and Groundwater.
Figure Percentage of reported monitoring sites with pesticides exceeding thresholds in a) surface waters and b) groundwater in Europe, weighted by country area The figures show the percentage of monitoring sites with exceedance of effect thresholds or quality standards, set by European or national regulatory standards, and weighted by country area to reduce the impact of uneven data reporting. For surface waters, EU environmental quality standards and (in the absence of those) national regulatory standards were used, reflecting the lowest ecotoxicologically-based effect threshold. Effect thresholds were identified for 116 out of 237 pesticides (49%). The exceedances included here refer to those 116 pesticides. For groundwater, the Groundwater Directive quality standard of 0.1µg/l was used to identify exceedance. Twelve non-relevant metabolites (nrM) were excluded from the assessment.
Figure Trends in oxygen concentrations in the near-bottom waters of the North-East Atlantic Ocean and Baltic Sea regions (1989-2021) The maps show trends in annual 25-percentile of oxygen concentrations in near-bottom waters at stations with at least 6 years of observations in the period 1989-2021, and the number of trends for the North-East Atlantic and Baltic Sea, by three classes of DO concentrations: <4mg/l (including <2mg/l class); 4-6mg/l and >6mg/l. Only trends for time series ending after 2000 are included. The chart shows the number of time series with increasing trend/no trend/decreasing trend in the North-East Atlantic Ocean and Baltic Sea for grid cells with concentrations <4 mg/l, 4-6 mg/l and >6 mg/l group, for oxygen concentrations in the near-bottom layer during 1989-2021.
Figure
Archived
Occurrence of reduced oxygen concentrations in coastal and marine waters surrounding Europe (average for the years 2011-2022) Observations are aggregated at the level of 100*100 km grid cells, and show the mean 25-percentile of dissolved oxygen (DO) concentrations subdivided in four classes (<2 mg/l, 2-4 mg/l, 4-6 mg/l, >6 mg/l). The pie charts indicate the relative spatial coverage of areas with the four different concentrations of DO, aggregated by Marine Strategy Framework Directive (MSFD) marine regions - North-East Atlantic Ocean, Baltic Sea, Mediterranean Sea and Black Sea (smaller pie charts) and for all regions combined (large pie chart in centre). Oxygen concentrations above 6mg/l are considered to support marine life with minimal problems while concentrations less than 2mg/l (hypoxia, oxygen deficiency) are considered to cause severe problems.
Figure
Archived
Trends in dissolved inorganic nitrogen and orthophosphate concentrations in transitional, coastal and marine waters in Europe, 1980-2021 Trends in concentrations of nitrogen (dissolved inorganic nitrogen—DIN) and phosphorus (orthophosphate) in the upper 10m of the water column in European seas during the season of low phytoplankton growth (SLPG) are shown for the period 1980-2021. Green circles indicate stations with significant (p<0.05) decreasing trends; orange circles show stations with significant (p<0.05) increasing trends; and grey circles show stations with no significant trends. In these cases, p is a statistical term describing the probability that the trend is significant.
Figure Nutrients in European water bodies This figure shows the trends in nitratre concentrations in European rivers and groundwater and the trends in phosphorus in European lakes and rivers
Figure Biochemical oxygen demand and ammonium in European Rivers This figure shows the trends in biochemical oxygen demand (BOD) and ammonium in European rivers.
Figure Exceedances of (left) effect thresholds in Europe’s surface waters for the pesticide imidacloprid in 2020; and (right) quality standards in Europe’s groundwater for the pesticide atrazine in 2020 The maps show the monitoring sites in Europe that exceeded effect or quality thresholds for (left) imidacloprid in surface waters (right) atrazine in groundwater in the year 2020. The classification of 'unknown’ for some monitoring sites means that the substance was detected but the concentration was below the limit of quantification (LoQ) and the LoQ was higher than the assessment threshold. This means that it is impossible to determine whether there was an exceedance or not. The data reported for imidacloprid in surface waters cover 16 countries. The data reported for atrazine cover 18 countries. The monitoring results are reported under the Water Information System for Europe State of Environment (WISE SoE) reporting, more specifically WISE 6, and the spatial data for the monitoring sites are reported under the Water Framework Directive and the WISE 5 Spatial data reporting.
Figure
Archived
Trends in dissolved inorganic nitrogen and orthophosphate concentrations in transitional, coastal and marine waters in Europe, 1980-2021 Trends in concentrations of nitrogen (dissolved inorganic nitrogen—DIN) and phosphorus (orthophosphate) in the upper 10m of the water column in European seas during the season of low phytoplankton growth (SLPG) are shown for the period 1980-2021. Green circles indicate stations with significant (p<0.05) decreasing trends; orange circles show stations with significant (p<0.05) increasing trends; and grey circles show stations with no significant trends. In these cases, p is a statistical term describing the probability that the trend is significant.

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For references, please go to https://www.eea.europa.eu/data-and-maps/data/external/waterbase-water-quality-icm-1 or scan the QR code.

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