Urban Air Pollution Traveling to Mount Rainier (animated map)
A chronicle of urban smog and vehicle pollution traveling from Puget Sound to Mount Rainier National Park in Washington.
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Read more about ozone pollution at Mt. Rainier here. View credits for this animation.
Date range: 2002
Caption: This animation depicts the transport of NOx emissions from the urban corridor to Mt. Rainier on a typical summer day. NOx is the major source of smog, which forms when NOx and sunlight interact to create ground-level ozone. Smog also includes unhealthy particulate matter.