From Longman Dictionary of Contemporary Englishblackspotblack‧spot /ˈblækspɒt $ -spɑːt/ noun [countable] British EnglishPROBLEMa place or area where there are more problems than usual
Arbroath is now the unemployment blackspot of northeast Scotland.
an accident blackspot (=where there are a lot of road accidents)Examples from the Corpusblackspot• The collision was on a towncentreroute that is fast becoming an accidentblackspot.• The crashhappened at a notorious accident blackspot.• A nightmare of wilt and mildew, of fungus and blackspot.• All 2,060 workers will go in a town which is already an unemploymentblackspot.• He believes the council is in danger of giving Darlington a badimage as an unemployment blackspot.• He believes some firms could then reject the town as an unemployment blackspot.• But North Tyneside, the region's unemployment blackspot would have taken little comfort from such news.unemployment blackspot• All 2,060 workers will go in a town which is already an unemployment blackspot.• He believes the council is in danger of giving Darlington a bad image as an unemployment blackspot.• He believes some firms could then reject the town as an unemployment blackspot.• Cinderford stands in the heart of the forest of dean, an unemployment blackspot.• But North Tyneside, the region's unemployment blackspot would have taken little comfort from such news.