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- Published by:
- Environment Agency
- Last updated:
- 25 July 2025
GQA Headline Indicators of Water Courses - Nutrients - phosphate GQA grades 2009 (England)'. The General Quality Assessment Headline Indicator scheme (GQAHI) was the Environment Agency's national...
- Published by:
- Environment Agency
- Last updated:
- 25 July 2025
This record is for Approval for Access product AfA163.4 'Historic GQA Headline Indicators of Water Courses - Nutrients - phosphate GQA grades 2010 (Wales)'. The General Quality Assessment Headline...
- Published by:
- Marine Environmental Data & Information Network
- Last updated:
- 10 July 2024
This data gives the concentration of nutrients in sea water samples from the
water column and from sediments (pore-water) taken in the North Sea. Includes
measurements for Nitrate (NO3) Nitrite...
- Published by:
- Marine Environmental Data & Information Network
- Last updated:
- 01 December 2024
This data gives the concentration of nutrients in sea water samples from the
water column and from sediments (pore-water) taken in the North Sea. Includes
measurements for Nitrate (NO3) Nitrite...
- Published by:
- Environmental Information Data Centre
- Last updated:
- 19 November 2025
The data are from bioassay experiments from 25 river sites across Great Britain to investigate the growth response of river phytoplankton to different inorganic and organic nutrient additions and...
- Published by:
- Marine Environmental Data & Information Network
- Last updated:
- 10 September 2024
Dataset supporting a baseline assessment of marine water quality around
Vanuatu, South Pacific. As part of the Commonwealth Marine Economies
Programme, water quality measurements were collected...
- Published by:
- Marine Environmental Data & Information Network
- Last updated:
- 10 July 2024
Dataset supporting a baseline assessment of marine water quality around
Vanuatu, South Pacific. As part of the Commonwealth Marine Economies
Programme, water quality measurements were collected...
- Published by:
- Natural England
- Last updated:
- 05 August 2025
This is a spatial dataset showing the extent and location of surface water catchment area of relevant designated sites, constituting Nutrient Neutrality catchments. Extracted from N2K Diffuse Water...
- Published by:
- Marine Environmental Data & Information Network
- Last updated:
- 10 July 2024
This data gives the concentration of nutrients in sea water samples from the
water column and from sediments (pore-water) from three sites in the North Sea
(North Dogger Bank, Oyster Ground, Sean...
- Published by:
- Marine Environmental Data & Information Network
- Last updated:
- 01 December 2024
This data gives the concentration of nutrients in sea water samples from the
water column and from sediments (pore-water) from three sites in the North Sea
(North Dogger Bank, Oyster Ground, Sean...
- Published by:
- Environmental Information Data Centre
- Last updated:
- 14 January 2026
Data consist of modelled estimates of observed/expected Biological Monitoring Working Party (an index for measuring the biological quality of rivers using selected families of macroinvertebrates as...
- Published by:
- Natural Resources Wales
- Last updated:
- 14 October 2025
The General Quality Assessment (GQA) Headline Indicator scheme or GQAHI (previously known as GQA) was the national indicator for water quality in rivers and canals. It was designed to provide an...
- Published by:
- Natural Resources Wales
- Last updated:
- 22 June 2023
The General Quality Assessment (GQA) Headline Indicator scheme or GQAHI (previously known as GQA) was the national indicator for water quality in rivers and canals. It was designed to...
- Published by:
- Marine Environmental Data & Information Network
- Last updated:
- 10 July 2024
48 water samples were collected from 5 surveys in June to September in 2017,
each sample was sub sampled for nutrients, chlorophyll, suspended particulate
matter and salinity.
- Published by:
- Marine Environmental Data & Information Network
- Last updated:
- 01 December 2024
48 water samples were collected from 5 surveys in June to September in 2017,
each sample was sub sampled for nutrients, chlorophyll, suspended particulate
matter and salinity.
- Published by:
- Marine Environmental Data & Information Network
- Last updated:
- 10 July 2024
Full water quality monitoring data set from the Commonwealth Marine Economies
Programme survey around Tarawa, Kiribati in March 2019.
This work was hosted and supported by the Kiribati Ministry...
- Published by:
- Marine Environmental Data & Information Network
- Last updated:
- 30 September 2025
Full water quality monitoring data set from the Commonwealth Marine Economies
Programme survey around Tarawa, Kiribati in March 2019.
This work was hosted and supported by the Kiribati Ministry...
- Published by:
- Marine Environmental Data & Information Network
- Last updated:
- 10 September 2024
The Jonus II programme was run to examine impacts of nutrients on the coastal
pelagic community and consisted of a series of 7 individual cruises using RV
Cirolana and the charter vessel Lough...
- Published by:
- Marine Environmental Data & Information Network
- Last updated:
- 10 July 2024
The Jonus II programme was run to examine impacts of nutrients on the coastal
pelagic community and consisted of a series of 7 individual cruises using RV
Cirolana and the charter vessel Lough...
- Published by:
- Environmental Information Data Centre
- Last updated:
- 19 November 2025
This dataset contains nutrient chemistry data from 14 lakes in the Arctic region: 4 in Russia and Alaska and 3 in Greenland and Norway. Nutrient chemistry was measured on one occasion only at each...