Environment in Hartford 13 indicators covering environment for Hartford. IndicatorLatest Year10-yr change Rank Drought - Cities and FUAs — Land soil moisture anomaly 7.6 Percentage change 2025 up 162.1% 40th Greenhouse gas emissions - Cities and FUAs — GHG emissions from waste 0.24 Tonnes of CO2-equivalent 2024 down 4.0% 167th Total and environment-related patents - FUAs — Patent applications 151.9 Patents 2022 down 43.2% 100th Land surface temperature - Cities and FUAs — Daytime summer land 28.21 Degrees celsius 2024 down 5.0% 913th Land surface temperature - Cities and FUAs — Daytime winter land 4.25 Degrees celsius 2024 up 57.3% 970th Land surface temperature - Cities and FUAs — Daytime yearly land 18.57 Degrees celsius 2024 up 1.2% 1041st Land surface temperature - Cities and FUAs — Nighttime summer land 16.72 Degrees celsius 2024 down 4.0% 630th Land surface temperature - Cities and FUAs — Nighttime winter land -4.01 Degrees celsius 2024 up 43.1% 1144th Land surface temperature - Cities and FUAs — Nighttime yearly land 5.02 Degrees celsius 2024 up 16.7% 1238th Air pollution - Cities and FUAs — Population exposure to nitrogen 14.46 Microgrammes per cubic metre 2025 — 888th Air pollution - Cities and FUAs — Population exposure to ozone 55.14 Microgrammes per cubic metre 2025 — 1062nd Air pollution - Cities and FUAs — Population exposure to PM10 14.72 Microgrammes per cubic metre 2025 — 1312th Air pollution - Cities and FUAs — Population exposure to PM2.5 7.31 Microgrammes per cubic metre 2025 — 1277th