EPA grant program for ground-level ozone research clears Senate introduction

What does this do?

S 4571 would require the EPA to establish a grant program funding scientific research on tropospheric, or ground-level, ozone, a pollutant formed when vehicle and factory emissions react in sunlight. Research would examine how this ozone affects temperatures, crop yields, forests, and human health, and how it interacts with climate change, other pollutants, and natural sources like wildfires and lightning. The bill would also expand ozone monitoring equipment networks, particularly in rural and farming areas, and require all data and reports to be made publicly available.

Who does it affect?

Universities, national laboratories, and nonprofit research organizations would be eligible to apply for grants. Farmers, people living in areas with poor air quality, and policymakers could be affected by the research findings and any policy recommendations that follow.

Why does it matter?

Ground-level ozone monitoring is currently less extensive in rural and agricultural areas, leaving gaps in understanding of its effects on crops and ecosystems. The EPA would be required to submit a full report to Congress within four years summarizing research findings and making policy recommendations, which could influence future air quality regulation.

What does it cost, and who pays?

• ~$32 million authorized total
• Funding period 2027–2030
• Grants to universities, labs, nonprofits

Where does it stand?