Ceredigion Coast & Estuaries - Temporal Analysis Report

Arfordir a Môr-Aber Ceredigion - Adroddiad Dadansoddi Amseryddol

This report analyses water quality parameters across sampling sites along the Ceredigion coastline and estuaries over time. It summarises temporal variation for parameters such as Temperature, pH, Electrical Conductivity, Dissolved Oxygen and Phosphate, covering coastal, transitional, river and lake waterbodies. Seasonal patterns and trends are highlighted to help understand changes in water quality across the year.

Mae’r adroddiad hwn yn dadansoddi paramedrau ansawdd dŵr ar draws safleoedd samplu ar hyd arfordir a môr-aber Ceredigion dros amser. Mae’n crynhoi amrywiadau amserol ar gyfer paramedrau megis Tymheredd, pH, Dargludedd Trydanol, Ocsigen Toddedig a Ffosffad, gan gwmpasu cyrff dŵr arfordirol, trosiannol, afonydd a llynnoedd. Tynnir sylw at batrymau a thueddiadau tymhorol i helpu deall newidiadau mewn ansawdd dŵr trwy gydol y flwyddyn.

178

Total Samples

Cyfanswm Samplau

Total Sub-Catchments (Water Bodies)

Cyfanswm Is-ddalgylchoedd (Cyrff Dŵr)

10th December 2025

Start Date

Dyddiad Cychwyn

5th September 2026

End Date

Dyddiad Gorffen

Seasonal Analysis Dadansoddiad Tymhorol

Winter Gaeaf

Temperature (°C): 6.44 (min: 3.5, max: 11.2) Tymheredd (°C): 6.44 (isaf: 3.5, uchaf: 11.2)
pH: 7.99 (min: 6.47, max: 8.94) pH: 7.99 (isaf: 6.47, uchaf: 8.94)
Phosphate (µg/L): 54.95 (min: 0.0, max: 244.58) Ffosffad (µg/L): 54.95 (isaf: 0.0, uchaf: 244.58)
No Dissolved Oxygen (mg/l) data available Dim data Ocsigen Toddedig (mg/l) ar gael
No Electrical Conductivity (ms/cm) data available Dim data Dargludedd Trydanol (ms/cm) ar gael
No Total Dissolved Solids (ppm) data available Dim data Cyfanswm Solidau Toddedig (ppm) ar gael
No nitrite data available Dim data nitrite ar gael
nitrate: 1.76 (min: 0.0, max: 12.6) nitrate: 1.76 (isaf: 0.0, uchaf: 12.6)
No salinity data available Dim data salinity ar gael
Ammonia (mg/L-N): 0.06 (min: 0.0, max: 0.29) Amonia (mg/L-N): 0.06 (isaf: 0.0, uchaf: 0.29)

Spring Gwanwyn

Temperature (°C): 9.87 (min: 5.3, max: 13.56) Tymheredd (°C): 9.87 (isaf: 5.3, uchaf: 13.56)
pH: 8.12 (min: 7.13, max: 9.25) pH: 8.12 (isaf: 7.13, uchaf: 9.25)
Phosphate (µg/L): 50.55 (min: 0.0, max: 202.18) Ffosffad (µg/L): 50.55 (isaf: 0.0, uchaf: 202.18)
No Dissolved Oxygen (mg/l) data available Dim data Ocsigen Toddedig (mg/l) ar gael
No Electrical Conductivity (ms/cm) data available Dim data Dargludedd Trydanol (ms/cm) ar gael
No Total Dissolved Solids (ppm) data available Dim data Cyfanswm Solidau Toddedig (ppm) ar gael
No nitrite data available Dim data nitrite ar gael
nitrate: 1.31 (min: 0.0, max: 9.7) nitrate: 1.31 (isaf: 0.0, uchaf: 9.7)
No salinity data available Dim data salinity ar gael
Ammonia (mg/L-N): 0.06 (min: 0.0, max: 0.65) Amonia (mg/L-N): 0.06 (isaf: 0.0, uchaf: 0.65)

Summer Haf

Temperature (°C): 17.01 (min: 7.5, max: 21.8) Tymheredd (°C): 17.01 (isaf: 7.5, uchaf: 21.8)
pH: 7.85 (min: 6.59, max: 8.91) pH: 7.85 (isaf: 6.59, uchaf: 8.91)
Phosphate (µg/L): 71.89 (min: 0.0, max: 296.75) Ffosffad (µg/L): 71.89 (isaf: 0.0, uchaf: 296.75)
No Dissolved Oxygen (mg/l) data available Dim data Ocsigen Toddedig (mg/l) ar gael
No Electrical Conductivity (ms/cm) data available Dim data Dargludedd Trydanol (ms/cm) ar gael
No Total Dissolved Solids (ppm) data available Dim data Cyfanswm Solidau Toddedig (ppm) ar gael
No nitrite data available Dim data nitrite ar gael
nitrate: 1.37 (min: 0.0, max: 19.0) nitrate: 1.37 (isaf: 0.0, uchaf: 19.0)
No salinity data available Dim data salinity ar gael
Ammonia (mg/L-N): 0.04 (min: 0.0, max: 0.16) Amonia (mg/L-N): 0.04 (isaf: 0.0, uchaf: 0.16)

Autumn Hydref

No Temperature (°C) data available Dim data Tymheredd (°C) ar gael
No pH data available Dim data pH ar gael
Phosphate (µg/L): 293.49 (min: 293.49, max: 293.49) Ffosffad (µg/L): 293.49 (isaf: 293.49, uchaf: 293.49)
No Dissolved Oxygen (mg/l) data available Dim data Ocsigen Toddedig (mg/l) ar gael
No Electrical Conductivity (ms/cm) data available Dim data Dargludedd Trydanol (ms/cm) ar gael
No Total Dissolved Solids (ppm) data available Dim data Cyfanswm Solidau Toddedig (ppm) ar gael
No nitrite data available Dim data nitrite ar gael
nitrate: 1.4 (min: 1.4, max: 1.4) nitrate: 1.4 (isaf: 1.4, uchaf: 1.4)
No salinity data available Dim data salinity ar gael
Ammonia (mg/L-N): 0.14 (min: 0.14, max: 0.14) Amonia (mg/L-N): 0.14 (isaf: 0.14, uchaf: 0.14)