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County's rivers are among UK's cleanest
Caernarfon and Denbeigh Herald
|June 04, 2025
RIVERS in southern Gwynedd are amongst the cleanest in the UK, a citizen science initiative has revealed. Elsewhere in Wales, water quality is poorer but nowhere near as bad as in England.
This year's Great UK WaterBlitz showed that 37% of water samples in Wales contained unacceptable levels of nutrient pollution, compared to 74% in England.
No nutrient pollution - nitrates and phosphates - were found in any of Meirionydd's rivers.
The Llŷn and Eryri river basin fared well too, with just 12% of sampling points showing significant levels of nutrient pollution.
For the Tawe to Cadoxton catchments in southwest Wales, the figure was around 27%.
However, water quality was poorer elsewhere.
In the Dee catchment, nutrient pollution was measured at 40%, while on Anglesey 43% of the island's rivers were found to be degraded.
A little better, but still failing, was the Teifi and North Ceredigion river basins (48%).
This story is from the June 04, 2025 edition of Caernarfon and Denbeigh Herald.
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