I have nonstick muffin pans, so I line them with paper. It's not perfect, but I figure it blocks out some of the yucky stuff. I keep my bird upstairs since I've read that fumes from nonstick cookware are very toxic to them, but really the main danger is from pans cooked on the stove over high heat.
I use full size loaf pans, and they're glass. If you want to use the smaller ones and can't find them in glass, I think you can actually get liners for them, just like muffin pans.
For cakes, you can line the pans with parchment paper. I never do it because I'm too lazy to trace the circle and cut it out, but Martha Stewart does it that way.