Environment in St. Louis 13 indicators covering environment for St. Louis. IndicatorLatest Year10-yr change Rank Drought - Cities and FUAs — Land soil moisture anomaly 7.6 Percentage change 2025 up 192.3% 40th Greenhouse gas emissions - Cities and FUAs — GHG emissions from waste 1.25 Tonnes of CO2-equivalent 2024 down 4.6% 30th Total and environment-related patents - FUAs — Patent applications 242.2 Patents 2022 down 20.0% 69th Land surface temperature - Cities and FUAs — Daytime summer land 32.13 Degrees celsius 2024 down 4.0% 485th Land surface temperature - Cities and FUAs — Daytime winter land 11.16 Degrees celsius 2024 up 33.0% 522nd Land surface temperature - Cities and FUAs — Daytime yearly land 23.83 Degrees celsius 2024 up 0.3% 488th Land surface temperature - Cities and FUAs — Nighttime summer land 20.18 Degrees celsius 2024 down 2.8% 319th Land surface temperature - Cities and FUAs — Nighttime winter land -1.71 Degrees celsius 2024 up 73.1% 953rd Land surface temperature - Cities and FUAs — Nighttime yearly land 9.65 Degrees celsius 2024 up 20.7% 513th Air pollution - Cities and FUAs — Population exposure to nitrogen 19.59 Microgrammes per cubic metre 2025 — 810th Air pollution - Cities and FUAs — Population exposure to ozone 50.37 Microgrammes per cubic metre 2025 — 1196th Air pollution - Cities and FUAs — Population exposure to PM10 26.03 Microgrammes per cubic metre 2025 — 1077th Air pollution - Cities and FUAs — Population exposure to PM2.5 9.45 Microgrammes per cubic metre 2025 — 1126th