In the October 6, 2015, issue of Environmental Science and Technology, four researchers from the University of Iowa Superfund Research Program reported on an inventory of PCB stocks and emissions for Chicago, Illinois.

Caitlan Shanahan, Scott Spak, Andres Martinez, and Keri Hornbuckle reported that stocks and emission are highly concentrated and not correlated with population density or demographics at the neighborhood scale. The abstract for the report can be found at http://pubs.acs.org/doi/10.1021./acs.est.5b00906.