Oh dear, I sort of have my image problem back again.
No one is hotlinking etc therefore that's not the issue, the problem is that I'm back to #1 for a 1+ billion searched for term in images and everytime someone looks at it an AdSense Page Impression is generated.
I'm guessing it's only when they actually go to my site that this happens and not the expanded view Google shows however someone else may know better.
This is not good since my overall CTR and eCPM are now falling like crazy, my earnings are currently consistent.
I could remove AdSense from that page however does anyone else have any other suggestions?