Assertion: photochemical smog | /r/HasProperty | a type of smog
Facets:
Source sentences:
text: Photochemical smog, also known as summer smog, is a type of smog that is produced when UV light originating from the sun interacts with the oxides of nitrogen present in the atmosphere.
text: Photochemical smog is a type of smog produced when ultraviolet light from the sun reacts with nitrogen oxides in the atmosphere.