Dissolved copper (mg/L) results for the period 2020/21 to 2022/23 benchmarked against GWRC toxicity guidelines.
Map: Drag and scroll on the map to move and zoom in on areas of interest, hover over map features to see more information, and use the options boxes (checkboxes/toggles) to show and hide layers.
Table: Click on rows to highlight those sites on the map and click on table headers to sort the data by that column – holding the shift key allows sorting over multiple columns. n refers to the number of samples and units are mg/L unless otherwise noted.