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Wastewater Overflows In Dublin Bay ‘Make Algal Blooms More Likely’

6th September 2019
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Wastewater has overflowed from the Ringsend treatment plant more than 100 times since 2015, according to figures seen by TheJournal.ie Wastewater has overflowed from the Ringsend treatment plant more than 100 times since 2015, according to figures seen by TheJournal.ie Photo: Irish Water

Wastewater overflows from Ringsend’s over-capacity treatment plant have made algal blooms in Dublin Bay much more likely, says one marine expert.

Speaking to The Green News, Karin Dubsky of Coastwatch Ireland said overflows from Ringsend which have occurred after heavy rainfalls provide the right nutrient-rich environment for algae to prosper.

Afloat.ie readers will remember the ‘orange slick’ seen on south Dublin beaches this past summer — and this past week the Shelly Banks adjacent to the Ringsend plant was blanketed in rotting seaweed many mistook for raw sewage.

But capacity issues at Ringsend are only one facet of the the problem, according to Dubsky.

“It’s not just one big Ringsend discharge as the treatment plant is struggling, it’s all those smaller stormwater overflows mixed with sewage water which are discharging right at high watermark onto the shore,” she said.

The Green News has more on the story HERE.

Published in Dublin Bay
MacDara Conroy

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MacDara Conroy

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MacDara Conroy is a contributor covering all things on the water, from boating and wildlife to science and business

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