This report provides an overview of marine and estuarine water quality along the Ceredigion coastline, summarising data completeness, validation metrics, and catchment analysis across coastal, transitional, river and lake waterbodies, including sampling frequency, average pH, temperature, salinity and spatial distribution.

Mae'r adroddiad hwn yn rhoi trosolwg o ansawdd dŵr môr ac aber ar hyd arfordir Ceredigion, gan grynhoi cyflawnrwydd data, metrigau dilysu, a dadansoddiad dalgylch ar draws cyrff dŵr arfordirol, trosiannol, afonydd a llynnoedd, gan gynnwys amlder samplu, pH cyfartalog, tymheredd, halltedd a dosbarthiad gofodol.