The soot that falls from chimneys.
Potter
Polyxeni
P
Centers for Disease Control and Prevention, Atlanta, Georgia 30333, USA. PMP1@cdc.gov
D004787:Environmental Pollution / Q000266:history; D005197:Famous Persons; D049673:History, 20th Century; D010151:Paintings / Q000266:history*; D053260:Soot / Q000266:history*; D014481:United States
D053260:Soot