Story perspectives

Study Links Medical Imaging Chemicals to Water Pollution

12/11/2025

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Summary

Story summary

A study finds contrast chemicals used in medical imaging contribute to water pollution because iodine-based agents are not biodegradable.
From 2011 to 2024, Medicare patients received 13.5 billion milliliters of contrast media.
Researchers analyzed 169 million imaging procedures and concluded that 80% of contrast use came from a small number of procedures.
Biodegradable contrast media and AI technology are being explored to mitigate environmental impacts.

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Story summary

A study finds contrast chemicals used in medical imaging contribute to water pollution because iodine-based agents are not biodegradable.
From 2011 to 2024, Medicare patients received 13.5 billion milliliters of contrast media.
Researchers analyzed 169 million imaging procedures and concluded that 80% of contrast use came from a small number of procedures.
Biodegradable contrast media and AI technology are being explored to mitigate environmental impacts.