Congress funds research into microplastics contaminating farmland via sewage.
S. 2500 — Research for Healthy Soils Act · Filed by Jeff Merkley (D-OR) · 4 cosponsors · Introduced Jul 29, 2025 · Referred to committee
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What it does
This bill adds microplastics in land-applied biosolids (sewage solids spread on farmland) as a high-priority research area under federal agricultural research programs, authorizing grants for surveys, wastewater treatment innovation, and studies of crop and soil impacts. It also extends the authorization of existing agricultural research initiatives from 2023 to 2031.
Why we flagged it
The bill's sole operative mechanism is to designate a new research priority area and extend funding authorization for existing agricultural research programs. It is a straightforward research-funding measure with no deregulatory, tax, or subsidy component.
What the text implies
- Research findings on microplastics in biosolids may eventually inform EPA or state regulations on land application of sewage solids, creating downstream policy pressure on wastewater treatment and agricultural practices.
- Funding for wastewater treatment innovation (subsection B) may indirectly benefit wastewater utilities and treatment technology vendors, though the primary beneficiary is the research community and public knowledge base.
The full analysis lists 3 implications of this text.
Who stands to gain
agricultural research institutions and universities; wastewater treatment technology developers