Upland Waters Monitoring Network

The purpose of the Upland Waters Monitoring Network (UWMN) is to monitor water quality and biodiversity in upland water bodies threatened by air pollution, climate change and land use change. Upland waters provide much of the UK's drinking water and act as a refuge for a cold-adapted species threatened by climate change. UWMN data informs management, policy and legislation with respect to air pollution and water management. Originally established as the UK Acid Waters Monitoring Network to assess the ecological impact of acid emissions on acid-sensitive surface waters around the UK, the Upland Water Monitoring Network now has a broader remit to address other potential drivers of change in upland headwater systems, particularly nitrogen deposition (causing eutrophication), climate change and land use change. UWMN provides the UK contribution to the UNECE International Cooperative Programme ICP Waters.
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