I thought Hulk was a portal to the Meat Dimension, not the Gamma Dimension. Or possibly Hell depending on continuity.

@Ian Lott: So what you're telling me is if Hulk and Poison Ivy did the bedtime mambo she'd become Octomom?

It is worth noting that the Hulk ABSORBS gamma radiation. How or why doesn't matter, what does matter is that he isn't a cancer stick like SOME Marvel heroes can be. It actually would make him a radiation shield.

Mind his fluids: Man can single-handedly terraform a planet with his blood.

not as bad as Captain Atom, dude is a walking atomic bomb, and usually explodes in alternative timelines

That's actually a pretty good point, does it even count as radiation if it isn't, you know, radiating?

Reminds me of when Spiderman accidentally killed Mary Jane via his radioactive.... um....fluids.

CURSE YOU ATOMIC AGE AND YOUR SCIENTIFIC BREAK THREW'S!

Squirrel Girl: Stronger than Thanos, Weakness to Gamma (radiation)