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River Water Quality Monitoring 1990 to 2024 - Alkalinity
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... -
WFD River and Lake Monitoring Sites 2nd Cycle
River and lake monitoring sites used for The Water Environment (Water Framework Directive) Regulations (Northern Ireland) 2017 classification purposes. The Water (Amendment)... -
RiverWaterQualityMonitoring 1990to2024 DissolvedOxygen
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... -
RiverWaterQualityMonitoring 1990to2024 Conductivity
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... -
RiverWaterQualityMonitoring 1990to2024 SuspendedSolids
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... -
Pollution Incidents 2011 to 2024
A polygon layer depicting the 1km squares within NI that contain one or more confirmed reports of pollution between 2011 and 2024. The purpose of the dataset is to assist with... -
RiverWaterQualityMonitoring 1990to2024 pH
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... -
Urban Waste Water Sensitive Areas 2nd Cycle
This is an amalgamated copy of the sensitive areas and catchment sensitve areas reported as the spatial data requirements under Urban Waste Water Treatment Directive Article15... -
RiverWaterQualityMonitoring 1990to2024 Alkalinity
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... -
Surface Drinking Water Protected Areas
The European Water Framework Directive was transposed to national legislation through the Water Environment (Water Framework Directive) Regulations (Northern Ireland) 2017. The... -
RiverWaterQualityMonitoring 1990to2024 DissolvedOxygen
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... -
Water Framework Directive 2nd Cycle Interim Status
This file contains the 2018 overall surface water body status, reported to Europe as a 2nd Cycle interim classification for Water Framework Directive in 2018. It contains the... -
RiverWaterQualityMonitoring 1990to2024 DissolvedOxygen
This dataset comprises water quality data from the NIEA water quality database from 1st January 1990 to 31st December 2024. Note that the dataset may contain results which are... -
RiverWaterQualityMonitoring 1990to2024 DissolvedOxygen
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... -
River Water Quality Monitoring 1990 to 2024 Soluble Reactive Phosphorus
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... -
Specific Pollutants 1990 to 2024
***Cypermethrin is currently designated as a Priority Substance under the EU Environmental Quality Standards Directive (2013/39/EU), which is a daughter directive of the Water... -
River Water Quality Monitoring 1990 to 2024 - Dissolved Zinc
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... -
Inland Fisheries - Public Angling Estate
This feature class contains the polygon layer comprising the water bodies of the Public Angling Estate in Northern Ireland, and details all of the information for each fishery... -
Annex B NIEA Mercury 25 Site review 05 11 2025
Approximately 14,000 sites make uip trhe Historical Land Use Database. All of these were analysed for the potential of Mercury land Contamination during the production of... -
River Water Quality Monitoring 1990 to 2024 - Nitrites
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...