Gunkers

Elementals are naturally occurring spirits of nature, their essence born from the elements of physical reality. But with the advent of modern civilization and mass pollution, a new type of Elemental has appeared, warped and twisted by the forces of degradation to the point were any semblance to its former self is long gone.
Gunkers take on one of the various forms of pollution in the last few centuries. From belching smoke stacks to waste chemicals, plastic detritus to landfill junk. Always smelly, their very touch is often poisonous.