Dublin Airport has blamed recent cleanliness issues on staff being moved to other areas.
Passengers have complained on social media over the past few days that the Airport's cleaning standards have slipped.
According to the daa, some cleaning staff were moved from their roles to work airside at security as they had the correct passes to do so.
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Spokesman Graeme McQueen said on RTE Radio One on Friday that there is a "plan in place" to rectify the issue.
"Those comments have been coming in every week," he said.
"I think people have had to be moved from cleaning and areas like that. These people would have the required passes to work airside so at the moment they're very valuable at security.
"Our number one priority at the moment is, and we want to apologise for this, to get people on their flights. That's the number one thing we're looking to do.
"The airport maybe isn't as clean as it would be at the moment but there's a plan in place to correct that over the coming days and weeks.
"So hopefully anyone flying anytime soon will see us getting back up to the standards that we would expect from ourselves and that they would expect from us as well."
This week, some passengers have taken to social media to flag cleanliness issues to Dublin Airport.
One said: "Guys someone needs to address the cleaning and maintenance! Toilets are filthy, no soap, no cleaning, no toilet paper, no locks on doors? Bins are over flowing!"
Another wrote: "Well T2 is disgraceful, here 3 hrs, no staff cleaning tables, emptying bins. Was here 3 weeks ago and all was fine. These bins are overflowing so when we're they last emptied? Flies flying around them now."
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