There's two factors there though. The first is how English accents in those localities have been influenced by historic use of Irish there. The second is how th

There's two factors there though. The first is how English accents in those localities have been influenced by historic use of Irish there. The second is how the accents learners of Irish are now being influenced by English phonetics. The biggest problem with the latter is a lot of learners don't grasp the Slender/Broad consonants distinction at all (it's a palatilization/velarization distinction similar to the soft/hard distiction in Slavic languages).