Well, it could be plants in your backyard that you're growing.
So it could be uptake by vegetation if there's arsenic in the soil.
It could be direct contact if you like to play in the dirt.
So nearby here is the university, and believe me, university students playing
sports in a nearby playing field might have a lot of contact with dirt.
Other ways you might be exposed perhaps are through the sub pump in your house,
perhaps some vapor exposures from other types of chemical contaminants
that might be there.
So, as you can see, it's pretty complicated.
Luckily, in Washington D.C.
they don't have many dairy farms here on the old weapons site.
But the exposure scenarios are complicated, because as you can also see,
when they began to excavate, look in that hole.
What do you see? You see a lot of water, right?
So nature likes to spread things around, and eventually,
anything we bury in the ground ends up in our water supplies one way or another.
It's a long process, but the environment is all interconnected.
So I thought you'd like to see that picture of the real world.
There's another cool thing there.
So you see that big blue tent?
Well, that kind of reminds me of the movie ET,
when they're trying to figure out about this alien from another planet.
It almost looked like that, because imagine I went over and visited that.
The crew working in full protection, digging through what
they had excavated from the ground there to see traces of things that might be
harmful from the old laboratories, little laboratory bottles and other debris.
So they created a pressurized environment to make sure that
off-site exposures didn't happen as they worked to remediate this facility here,
down in, believe it or not, Washington D.C..
Now, there are a lot of exposures that happen everyday that are a lot less
dramatic than chemical weapons from World War I, and a lot more common.
And I wanted to show you a couple of examples of those.
So imagine a newborn infant having a baby bottle, what's the exposure there?