polluted vs sanitary

polluted

adj
  • made unclean or impure 

  • drunk 

verb
  • simple past tense of pollute 

sanitary

noun
  • Sanitary towel. 

adj
  • Clean and free from pathogens; hygienic. 

  • Of, or relating to health. 

How often have the words polluted and sanitary occurred in a corpus of books? (source: Google Ngram Viewer )