Report Generated: 19th January 2026 Adroddiad wedi'i Gynhyrchu: 19th January 2026

NO₂⁻ (Nitrite as N) Levels by Sub-Catchment (Water Body) Lefelau NO₂⁻ (Nitrit fel N) yn ôl Is-ddalgylch (Corff Dŵr)

Ceredigion Coast & Estuaries Nutrients Analysis – NO₂⁻ (Nitrite as N)

Arfordir a Môr-Aber Ceredigion – Dadansoddiad Maetholion – NO₂⁻ (Nitrit fel N)

This report analyses nutrients levels (NO₂⁻ (Nitrite as N)) across sampling sites along the Ceredigion coastline and estuaries, grouped by Natural Resources Wales waterbodies (coastal, transitional, river and lake). Values are shown as NO₂⁻ (Nitrite as N) in mg/L-N. Use this report to explore spatial and temporal patterns and compare catchments across marine, estuarine and connected freshwater environments.

Mae’r adroddiad hwn yn dadansoddi lefelau maetholion (NO₂⁻ (Nitrit fel N)) ar draws safleoedd arfordirol ac aberol ar hyd arfordir Ceredigion, wedi’u grwpio yn ôl gyrff dŵr Cyfoeth Naturiol Cymru (arfordirol, trosiannol, afonydd a llynnoedd). Dangosir gwerthoedd fel NO₂⁻ (Nitrit fel N) mewn mg/L-N. Defnyddiwch yr adroddiad i archwilio patrymau gofodol ac amserol a chymharu dalgylchoedd ar draws amgylcheddau morol, aberol a dŵr croyw cysylltiedig.

--
Total Readings
Cyfanswm Darlleniadau
--
Total Sub-Catchments (Water Bodies)
Cyfanswm Is-ddalgylchoedd (Cyrff Dŵr)

Sub-Catchment (Water Body) Analysis

Is-ddalgylch (Corff Dŵr)

This section summarizes the spatial and temporal patterns of nutrients (NO₂⁻ (Nitrite as N)) in the Teifi catchments.

  • Readings: Number of nutrients measurements collected for each catchment.
  • Median, Min, Max, Mean, Std Dev: Statistical summaries of the nutrients values (mg/L-N) for each catchment. For catchments with only 1 or 2 readings, these statistics may not be meaningful.
  • Date Range: The period over which samples were collected for each catchment.
  • Note: A warning icon (⚠️) indicates catchments with fewer than 3 readings.

Nutrients is measured as NO₂⁻ (Nitrite as N) in mg/L-N. Please refer to NRW or DEFRA guidelines for threshold values relevant to water quality assessment.

Mae'r adran hon yn crynhoi patrymau gofodol ac amserol maetholion (NO₂⁻ (Nitrit fel N)) yn nalgylchoedd y Teifi.

  • Darlleniadau: Nifer y mesuriadau maetholion a gasglwyd ar gyfer pob dalgylch.
  • Canolrif, Isafswm, Uchafswm, Cyfartaledd, Gwyriad Safonol: Crynodebau ystadegol o werthoedd maetholion (mg/L-N) ar gyfer pob dalgylch. I ddalgylchoedd gyda dim ond 1 neu 2 ddarlleniad, efallai na fydd ystadegau hyn yn ystyrlon.
  • Ystod Dyddiad: Y cyfnod y casglwyd samplau ar ei hyd ar gyfer pob dalgylch.
  • Nodyn: Mae eicon rhybudd (⚠️) yn nodi dalgylchoedd gyda llai na 3 darlleniad.

Mesurir maetholion fel NO₂⁻ (Nitrit fel N) mewn mg/L-N. Cyfeiriwch at ganllawiau NRW neu DEFRA ar gyfer gwerthoedd trothwy sy'n berthnasol i asesu ansawdd dŵr.