Probably atmospheric. I don't know where you live but in Southern England we have a lot of little hills and valleys even with our A roads. Sometimes they hold pockets of mist. Sometimes the humidity and pressure change the colour of the moon and it's often local - sometimes not.

However, I grasp what you mean. A while ago I was doing an Isis adoration. As I concluded and turned toward the (full) moon it was red. Coincidence? Maybe, I don't know, but I didn't think of it as negative. I was a little overawed, flattered. It was low in the sky so it may have been that - the same thing that turns evening skies reddish to the west...