ArcGIS Hub Dataset
type: Distribution
access URL: https://opendata-daerani.hub.arcgis.com/datasets/DAERANI::riverwaterqualitymonitoring-1990to2024-dissolvedoxygen-8
media type: text/html
format: HTML
issued: 2026-06-17T08:42:30.473002
modified: 2026-06-18T06:02:43.800987

GeoJSON
type: Distribution
access URL: https://opendata-daerani.hub.arcgis.com/api/download/v1/items/6e2e4f863ac84f62bc8d601b60141ae4/geojson
media type: application/vnd.geo+json
format: GeoJSON
issued: 2026-06-17T08:42:30.473010
modified: 2026-06-18T06:02:43.804460

KML
type: Distribution
access URL: https://opendata-daerani.hub.arcgis.com/api/download/v1/items/6e2e4f863ac84f62bc8d601b60141ae4/kml
media type: application/vnd.google-earth.kml+xml
format: KML
issued: 2026-06-17T08:42:30.473011
modified: 2026-06-18T06:02:43.805233

RiverWaterQualityMonitoring 1990to2024 DissolvedOxygen
type: Dataset
keyword: fdi
keyword: nitrogen
keyword: ammonia
keyword: daera
keyword: nitrite
keyword: wse
keyword: river-water-quality
keyword: niea
keyword: water
keyword: chemistry
keyword: freshwater-data-insights
keyword: water-science-and-evidence
keyword: nitrate
landing page: https://opendata-daerani.hub.arcgis.com/datasets/DAERANI::riverwaterqualitymonitoring-1990to2024-dissolvedoxygen-8
theme: geospatial
description: This dataset comes from the NIEA water quality database and contains data from 1990 to 2024. The dataset may contain results which are erroneous due to typos, sampling error or contamination. Such data points are usually several orders of magnitude above expected values. This is the first in a series of water datasets being made available as Open Data. Other datasets remain available on request via waterinfo@daera-ni.gov.uk The European Water Framework Directive (2000/60/EC) has been transposed into Northern Ireland Regulations through The Water Environment (Water Framework Directive) Regulations (Northern Ireland) 2017. The Water (Amendment) (Northern Ireland) (EU Exit) Regulations 2019 ensures that the Water Framework Directive (WFD) (as transposed) and the various supporting pieces of water legislation continue to operate here after 1 January 2021. The regulations encourage the active involvement of interested parties and the general public. The regulations set out the requirement to achieve 'Good Ecological Status' and 'Good Chemical Status' for all ground and surface waters (rivers, lakes, transitional waters, and coastal waters) within Northern Ireland. Surface waters are assessed according to the following criteria: Biological quality (fish, invertebrates, flora), Hydromorphological, Physico-chemical properties like temperature, oxygenation and nutrient conditions, Chemical quality assessed against environmental quality standards for specific pollutants and priority substances. The following physio-chemical and chemical parameters are included in the dataset: NH4-N (mg/l) - Ammonia
issued: 2026-05-20T00:00:00
modified: 2026-05-20T00:00:00
spatial: -8.1434,54.0635,-5.4606,55.2206

ArcGIS GeoService
type: Distribution
access URL: https://services-eu1.arcgis.com/kswen6BYexuc1SUk/arcgis/rest/services/River_Water_Quality_Monitoring_1990_to_2024_Ammonia/FeatureServer/5
media type: application/json
format: JSON
issued: 2026-06-17T08:42:30.473006
modified: 2026-06-18T06:02:43.801892

OpenDataNI
type: Organization

CSV
type: Distribution
access URL: https://opendata-daerani.hub.arcgis.com/api/download/v1/items/6e2e4f863ac84f62bc8d601b60141ae4/csv
media type: text/csv
format: CSV
issued: 2026-06-17T08:42:30.473008
modified: 2026-06-18T06:02:43.802765

Shapefile
type: Distribution
access URL: https://opendata-daerani.hub.arcgis.com/api/download/v1/items/6e2e4f863ac84f62bc8d601b60141ae4/shapefile
media type: application/zip
format: SHP
issued: 2026-06-17T08:42:30.473009
modified: 2026-06-18T06:02:43.803649