Assertion: indoor air pollution | /r/HasProperty | major health problem
Facets:
value: for the 3 billion people
type: TRANSITIVE-OBJECT
Source sentences:
text: Indoor air pollution is a major health problem for the 3 billion people globally who use solid fuels such as wood and charcoal in cooking and heating, especially if their homes are poorly ventilated.
text: While second-hand tobacco smoke and certain outdoor pollutants are known risk factors for respiratory infections, indoor air pollution from solid fuels is one of the major contributors to the global burden of disease.