Of the electric outlets in my house, a few have a green substance
that appears around the plug holes. The prongs on the plugs I insert
in them gets this green substance on them. It is rather greasy or
more like ink when I wipe it off. What would this substance be and
what can I do about it ?
Thanks for the input. I do remember there being a couple of roof leaks
at one time, but my landlord did repair the roof. And of course there is
humidity in abundance here in NC. I just want to know that the stuff is
harmless where it won't cause short circuits or any other fire dangers.
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