Seeing how it's in the middle of a shipping port, I'm not too worried about the ecosystem within 10 meters or so of the car wreck. That radiation insulation applies in all directions, so the ecosystem outside Houston would be just fine.

Physicist here. There were a lot of things wrong with this episode, but the science wasn't really the main problem. Water is actually a fantastic way to cut radiation levels and stop a plume of radioactivity. The principle in shielding is known as the "halving thickness": for water, it means that every 18cm of water…

Physicist here. There were a lot of things wrong with this episode, but the science wasn't really the main problem. Water is actually a fantastic way to cut radiation levels and stop a plume of radioactivity. The principle in shielding is known as the "halving thickness": for water, it means that every 18cm of water…