Bonded channels "bleeding" over to adjacent channels

Hey guys!
Great to be part of this community.
I have a question on channel usage, specifically if you find energy “bleeding” over to different channels normal?
I use bonded 40 MHz channels. The density view for AP working on channels 132-136 seems to be a little odd.
It seems to me that the signal is getting scatered everywhere.
Is this something to be worried about?