Top Most Polluted Roads in the United States image

TomTom’s Latest Traffic Study leverages data from GPS users to reveal a detailed view of the environmental and economic impact of carbon emissions from traffic jams on nation’s primary and secondary roads.
The top 20 most polluted roads, the associated costs of that pollution in terms of tons of carbon emission produced and additional fuel wasted are outlined here:

We hope Californians aren’t in a hurry, because 120,000 of their cars are stuck in traffic jams every day on just the 170 miles of roads in the study.