Toxic Waste



Toxic waste in the Fallout series typically comes in two varieties. The first acts as an impassable barrier, like the waste found near the Gun Runners fortress in Fallout. The second, which can be found in places like the toxic caves in Fallout 2, hinder the player character's movement and causes damage. This effect can temporarily be negated through the use of rubber boots.

As a set piece, toxic waste in the Fallout series is very nondescript. It is green or yellow, as well as gooey; to the point that it is also called toxic goo as a consumable item in Fallout 76. Toxic mutagenic waste is also a miscellaneous quest item, described as causing "spurious genetic modifications, some of which may be harmful or even fatal." Often, the waste is heavily irradiated, such as in the Toxic Waste Dump special encounter in Fallout 2, but sometimes it is completely harmless. The Gun Runners apparently lived in the middle of toxic waste for a long time without any adverse effects.

The liquid version of FEV used for dipping in the Mariposa Military Base looks a lot like plain old toxic waste, albeit somewhat shinier.

Appearances
Toxic waste appears in all Fallout games.