a: temperature inversion ~
b: putting a lid on the saucepan
What:
"A layer of cold air sinks down close to the ground and gets overridden by warm air," Jeffrey said. That's kind of like a saucepan that you pour water in. You turn on the burner and it starts to boil. On a good day, that steam or pollution goes up and drifts away. But a temperature inversion is like putting a lid on the saucepan. The pollution builds up and the air just gets dirtier and dirtier. A lot of what you're seeing that you think is fog is really air pollution."
Useful?
Writer: Bob Jeffrey of DEQ air resources
LCC:
Where:
Date: Feb 5 2015 11:27 AM
# 7242 Critique Analogy