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River Wye issues highlighted in Cardiff University study (www.countytimes.co.uk)

submitted 2 months ago by [email protected] to c/[email protected]

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Fixing the environmental issues in the River Wye may be more complex than first thought, a new study has found.

Cardiff University researchers found that water quality in the River Wye catchment will not improve by focusing only on phosphate levels in the water.

The chemical, which finds its way into the river from a range of sources, has been linked to a perceived increase in frequency and severity of algal blooms, which are harmful to the river’s ecology, wildlife, and those using the river for fishing and swimming.

But the new report, prepared over two years by researchers at Cardiff University for the Wye and Usk Foundation, shows current phosphate levels are mostly within Special Areas of Conservation (SAC) targets.

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[–] [email protected] 3 points 2 months ago

The relevant bit:

The report instead concluded that increased levels of ammonium and nitrate, seasonal changes to the river’s flow, and high summer temperatures are all combining to affect the Wye’s health.

Its authors added that a holistic management approach, which addresses the river’s flow rate, water temperature, and reduces all nutrients from all sources is essential to reverse the decline in the river’s health.