Assertion: smog | /r/Synonym | photochemical smog
Facets:
Source sentences:
text: In the 1950s a new type of smog, known as Photochemical Smog, was first described.
text: The smog in such cities, which aren't known for their fog, is different in composition from London smog, and is known as Los Angeles or photochemical smog.
text: In the 1950s a new type of smog, known as photochemical smog, was first described.
text: A special type of smog, known as photochemical smog which results in ground-level ozone formation is generated when sunlight reacts with suspended gases like nitrogen oxides and volatile organic compounds, to form ozone.
text: In the 1950s a new type of smog, known as photochemical smog, was first described.