Environment in Halle an der Saale 13 indicators covering environment for Halle an der Saale. IndicatorLatest Year10-yr change Rank Drought - Cities and FUAs — Land soil moisture anomaly -4.4 Percentage change 2025 down 41.9% 815th Greenhouse gas emissions - Cities and FUAs — GHG emissions from waste 0.02 Tonnes of CO2-equivalent 2024 unchanged 703rd Total and environment-related patents - FUAs — Patent applications 29.9 Patents 2022 down 20.1% 298th Land surface temperature - Cities and FUAs — Daytime summer land 29.45 Degrees celsius 2024 down 13.7% 763rd Land surface temperature - Cities and FUAs — Daytime winter land 3.39 Degrees celsius 2024 up 23.1% 1086th Land surface temperature - Cities and FUAs — Daytime yearly land 19.17 Degrees celsius 2024 down 13.2% 962nd Land surface temperature - Cities and FUAs — Nighttime summer land 15.16 Degrees celsius 2024 down 2.6% 834th Land surface temperature - Cities and FUAs — Nighttime winter land -2.71 Degrees celsius 2024 up 29.2% 1046th Land surface temperature - Cities and FUAs — Nighttime yearly land 6.52 Degrees celsius 2024 down 3.8% 1038th Air pollution - Cities and FUAs — Population exposure to nitrogen 38.2 Microgrammes per cubic metre 2025 — 511th Air pollution - Cities and FUAs — Population exposure to ozone 79.66 Microgrammes per cubic metre 2025 — 733rd Air pollution - Cities and FUAs — Population exposure to PM10 35.79 Microgrammes per cubic metre 2025 — 770th Air pollution - Cities and FUAs — Population exposure to PM2.5 28.47 Microgrammes per cubic metre 2025 — 607th