Amanda McCormick, Timothy J. Hoellein, Sherri A. Mason, Joseph Schluep, and John J. Kelly (2014). “Microplastic is an Abundant and Distinct Microbial Habitat in an Urban River.” Environmental Science & Technology Article ASAP. DOI: 10.1021/es503610r.
Abstract: Recent research has documented microplastic particles (< 5 mm in diameter) in ocean habitats worldwide and in the Laurentian Great Lakes. Microplastic interacts with biota, including microorganisms, in these habitats, raising concerns about its ecological effects. Rivers may transport microplastic to marine habitats and the Great Lakes, but data on microplastic in rivers is limited. In a highly urbanized river in Chicago, Illinois, USA, we measured concentrations of microplastic that met or exceeded those measured in oceans and the Great Lakes, and we demonstrated that wastewater treatment plant effluent was a point source of microplastic. Results from high-throughput sequencing showed that bacterial assemblages colonizing microplastic within the river were less diverse and were significantly different in taxonomic composition compared to those from the water column and suspended organic matter. Several taxa that include plastic decomposing organisms and pathogens were more abundant on microplastic. These results demonstrate that microplastic in rivers are a distinct microbial habitat and may be a novel vector for the downstream transport of unique bacterial assemblages. In addition, this study suggests that urban rivers are an overlooked and potentially significant component of the global microplastic life cycle.
Read the full post from Lakeside Views.
Anjanette Riley was at last week’sResilient Chicago workshop on climate trends and adaptive planning. She had this to say about the event:
Presentation after presentation, what struck me most is just how muchclimate change already is and will continue to impact our daily lives—and how interconnected those impacts are. Actually, a quick glance at the agenda was all it took to realize this workshop was going to be about much more than just predictions of yearly rainfall or average temperatures. The speakers were climatologists, public health experts, community planners, and policy specialists. And the participants were just as diverse—educators, urban planners, local officials, and private consultants.
The U.S. Environmental Protection Agency has approved a permit allowing the Archer Daniels Midland Company to inject carbon dioxide deep underground in Decatur, Illinois. This process – known as “carbon sequestration” – is a means of storing carbon dioxide, a greenhouse gas that contributes to climate change.
ADM plans to capture carbon dioxide produced by an ethanol manufacturing facility. ADM’s goal is to capture and inject 1.1 million metric tons of carbon dioxide each year. Sequestering 1.1 million metric tons of carbon dioxide each year is the equivalent of eliminating carbon emissions from over 230,000 cars.
U.S. EPA completed a technical review of the Class VI permit and responded to over 100 public comments before approving the permit. ADM can begin drilling the well in November in preparation for injecting liquefied carbon dioxide. ADM must demonstrate the integrity of the well before injecting carbon dioxide and conduct extensive monitoring at the location.
ADM is the second facility in the nation to receive a Class VI underground injection permit for carbon sequestration. In August, U.S. EPA issued four Class VI permits for a FutureGen Alliance facility in downstate Illinois.
For more information: http://www.epa.gov/region5/water/uic/adm/.
Read the full story in Inside Illinois.
There’s no such thing as a good place to have a natural disaster, nor has there ever been an appropriate site to release toxic pollutants. But scientists have long recognized that some areas can handle such catastrophes better than others. As early as the 1970s, they used socioeconomic data from the U.S. Census to develop a tool called the Social Vulnerability Index, known as SoVI, to gauge the likely resilience of different communities.
Now a team of professors and graduate students at the University of Illinois is testing and tweaking the SoVI model by studying at a more granular level the communities around two polluted Midwest waterways. Bethany Cutts, a professor of natural resources and environmental sciences, and Andrew Greenlee, a professor ofurban and regional planning, received a two-year Illinois-Indiana Sea Grant to study communities around the Lincoln Park-Milwaukee Estuary and portions of the Grand Calumet River south of Chicago, both designated “areas of concern” by the U.S. Environmental Protection Agency.
Read the full story in MIT Technology Review.
After a decade of stop-and-start efforts and a $1 billion federal pledge, construction of the country’s most hyped project for capturing carbon dioxide from a coal-fired power plant and storing it underground has finally begun. But even now, the project, called FutureGen, faces hurdles. An environmental group has brought a lawsuit against the project that threatens to undermine the additional funding needed to see the job through.