How could contamination flowing from the Great Lakes affect the Des Plaines River?
Contamination from Great Lakes may increase pollution load in Des Plaines River Contamination, specifically industrial plastic pellets known as nurdles and other microplastics, flows from the Great Lakes into the Chicago River. Because the Chicago River's flow is diverted via a canal into the Des Plaines River, the tributary is exposed to this influx of pollution. Researchers have already found nurdles in the Des Plaines River during summer sampling, confirming the presence of these man-made particles in the watershed.
- Effect
- Mild negative
- How direct
- Brind's reasoning
- When
- Within weeks
- The story
- Gone quiet
How it reaches Des Plaines River
-
Illinois has required companies to report spills of industrial plastic pellets, known as nurdles, which are a growing source of contamination in the Great Lakes and Mississippi River watersheds. Specific contamination flow has been observed moving from the Great Lakes through the Des Plaines area into the Chicago River.
The full event1independent outlet -
The flow of the Chicago River is diverted via a canal into the Des Plaines River. This established hydrological connection means that the Des Plaines River receives water that has passed through the Chicago River system.
No report states this step directly. Brind drew it from the reporting on each side of it, so treat it as an informed guess.
-
tributary of the Illinois River
Everything about Des Plaines River
Tap any step to see the evidence behind it.
The facts so far
As reported. Each one links to where it comes from.
- Illinois is requiring polluters to report spills of industrial plastic pellets known as nurdles, a growing source of contamination in the Great Lakes and Mississippi River watersheds.chicagotribune.com
- Researchers collected water samples from the Calumet, Des Plaines, Illinois and Rock rivers and the Mississippi between Dubuque, Iowa, and the Quad Cities, finding nurdles in all of them.chicagotribune.com
- At least 50 or 60 nurdles a week were found in a plastic trash trap right downtown on the Chicago River.chicagotribune.com
Why it matters
The Des Plaines River, as a tributary within the Great Lakes watershed, is a critical part of the regional water system. Increased contamination from nurdles and microplastics poses risks to the local ecosystem and public health, as these particles are known to be found in Great Lakes waters and are mistaken for food by fish.
This issue is being addressed by new legislation in Illinois, which is the first in either watershed to officially designate bits of wasted plastic as pollution. The state is requiring companies that manufacture, use, or transport nurdles to develop plans to limit them in storm runoff.
What we don't know yet
- What is the specific concentration of nurdles and microplastics entering the Des Plaines River via the canal diversion?
- How will the new Illinois state law impact the rate of nurdle spills into the Great Lakes watershed?
Is this still moving?
- Reports
- 2
- Developments
- 5
- Repetition
- 50%
What would change this answer
— Other considerations
Beyond this explainer
Questions worth asking
Ideas the web ties closely to this story that the explainer doesn't mention. These are prompts for your own research: Brind hasn't answered them.
-
About Des Plaines, Illinois
How does the specific geography of Des Plaines, Illinois, influence how the diverted Chicago River flow interacts with the Des Plaines River?
Explore connected ideas
Each opens in Related concepts: what the web connects to it, with Brind's news on it.
The ideas come from how millions of web pages place them near each other. The questions are Brind's AI reasoning, written only from this explainer and Brind's own reporting.
Who else could feel it
Other possible ripples from the same event.
- MichiganLikelyGreat Lakes contamination threatens Michigan's wildlife and public health resources
- IllinoisLikelyIllinois must enforce new laws targeting plastic pellet spills
- National Oceanic and Atmospheric AdministrationPossibleNOAA may need to increase monitoring efforts due to microplastic contamination in major waterways.
- Lake MichiganPossibleLake Michigan faces increased microplastic contamination from Great Lakes flow
Reporting
- chicagotribune.comAug 11
Keep going
Brind's analysis is written by AI from the reporting linked above and can be wrong. This explainer is a possibility worth considering, not a forecast: steps marked as Brind's reasoning are not stated in the reporting. It is not investment advice; do your own research.