Story perspectives

Study Reveals Human Chemicals Pollute Coastal Organic Matter

3/17/2026

Summary

Story summary

The University of California, Riverside (UCR) led a global study analyzing more than 2,300 seawater samples, with findings published in Nature Geoscience.
The study found that human-made chemicals significantly contribute to coastal-ocean organic matter.
The chemicals are present even in remote areas, with up to 20% of near-shore organic matter anthropogenic.
The researchers cite agriculture and tourism as drivers and call for further targeted analyses to understand long-term ecological effects.

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Story summary

The University of California, Riverside (UCR) led a global study analyzing more than 2,300 seawater samples, with findings published in Nature Geoscience.
The study found that human-made chemicals significantly contribute to coastal-ocean organic matter.
The chemicals are present even in remote areas, with up to 20% of near-shore organic matter anthropogenic.
The researchers cite agriculture and tourism as drivers and call for further targeted analyses to understand long-term ecological effects.