Environment in Roanoke 13 indicators covering environment for Roanoke. IndicatorLatest Year10-yr change Rank Drought - Cities and FUAs — Land soil moisture anomaly -0.5 Percentage change 2025 down 400.0% 430th Greenhouse gas emissions - Cities and FUAs — GHG emissions from waste 0.01 Tonnes of CO2-equivalent 2024 unchanged 872nd Total and environment-related patents - FUAs — Patent applications 11 Patents 2022 down 69.2% 438th Land surface temperature - Cities and FUAs — Daytime summer land 35.45 Degrees celsius 2024 up 3.5% 274th Land surface temperature - Cities and FUAs — Daytime winter land 10.96 Degrees celsius 2024 up 30.5% 532nd Land surface temperature - Cities and FUAs — Daytime yearly land 24.16 Degrees celsius 2024 up 5.5% 462nd Land surface temperature - Cities and FUAs — Nighttime summer land 20.23 Degrees celsius 2024 up 1.5% 313th Land surface temperature - Cities and FUAs — Nighttime winter land -0.6375 Degrees celsius 2024 up 76.9% 815th Land surface temperature - Cities and FUAs — Nighttime yearly land 9.37 Degrees celsius 2024 up 12.3% 547th Air pollution - Cities and FUAs — Population exposure to nitrogen 13.3 Microgrammes per cubic metre 2025 — 918th Air pollution - Cities and FUAs — Population exposure to ozone 49.21 Microgrammes per cubic metre 2025 — 1231st Air pollution - Cities and FUAs — Population exposure to PM10 18.28 Microgrammes per cubic metre 2025 — 1264th Air pollution - Cities and FUAs — Population exposure to PM2.5 8.12 Microgrammes per cubic metre 2025 — 1207th