After it was revealed there was a lime leak at Poolbeg Incinerator four weeks ago, it has now emerged that there were three other incidents during the first week of testing.

The incidents, which have been described as serious, relate to a filter used to control pollution.

They were recorded on June 1 and 5, as well as the lime leak on June 8.

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According to 98fm, Dublin Waste to Energy reported the incidents to the Environmental Protection Agency, and they were brought up during a meeting of Dublin City Council's Environment SPC yesterday.

It has been reported that the various issues have now been resolved, however burning has been suspended while separate investigations take place.

Dublin City councillors have voted to increase the level of online monitoring at the plant.

Eleven incinerator workers were hospitalised as a precaution after the incidents.