At this point, I would be very careful about eating apples that you don't grow yourself.
1. Once again, apples are the #1 produce item on the 'dirty dozen' list of produce containing pesticide residue. In other words, they have the most pesticide residue of everything tested. Good to at least go organic. The dirty dozen list.
2. Some of them may have antibiotics used on them, including organic varieties:
Antibiotic use on apples and pears.
Considering the state of antibiotic resistance that the World Health Organization has just weighed in on after an international study, this is NOT something we want to encourage.
3. And in the USA, on average, apples are stored for 14 months before you ever get to see them. Which is likely why Europe may not allow them to be imported from the USA - too much residue used to keep them looking okay from such long storage.
I'm looking into getting my own apple tree, and if I DO buy apples, I get ones from local farmers now that I can interview, and only in season. :-/