Studies by environmental scientists find that 48217 is the most polluted zip code in the entire state of Michigan.
It's the zip for the Boynton neighborhood in southwest Detroit, perched next to the Marathon Refinery, which refines tar sands oil that comes from Canada.
The byproduct of that tar sands refining? Those huge piles of pet coke that appeared along the banks of the Detroit River last year before being removed.
For many people who call the Boynton neighborhood home, life is about belching smoke stacks, terrible odors, worries about what chemicals they're being exposed to, and declining property values.
Renee Lewis recently reported on "Life in Michigan's Dirtiest Zip Code" for Al Jazeera America, and she joined us today.
Listen to the full interview above.