noun. the state, condition, or practice of being unsanitary

noun. a state that is not conducive to health

"The fact of its disappearance is both significant and interesting, in that it was unquestionably due to the ranker and viler forms of both municipal and individual filthiness and unsanitariness, which even our moderate progress in civilization has now abolished."

sanitary condition  

dunghill  filth  filthiness  foulness  nastiness