Hi Fellas. Can somebody tell me, if one of the books gives a statement, how fast BC is reduced, if e.g. the source of the pollution has been cleaned, the cyberzombie/char. with astral hazing has left the building he inherited for a longer time, etc.? I only found the decription of how quick it is reduced, if you artificially create BC via the manipulation spell "astral static" or how quick it comes back if you use geomanty / cleansing metatechnique.

Augmentation page 158, first line (in my copy) says the background count created by a CZ falls off at 1 point per day.

You are the best. Thank you very much.