By Brand
Irn Bru just edges out Coke as the favorite brand of litter louts, in this four-zone analysis (11.5, 17.5, 18.0,18.5) for the last two weeks of May

By Category
Snacks (drinks and sweets) seem to dominate the litter.

By Material
Tin cans and plastic water bottles make up a lot of the litter, with cans winning out.
