Environment in Biel/Bienne 13 indicators covering environment for Biel/Bienne. IndicatorLatest Year10-yr change Rank Drought - Cities and FUAs — Land soil moisture anomaly 0.7 Percentage change 2025 up 117.9% 329th Greenhouse gas emissions - Cities and FUAs — GHG emissions from waste 0 Tonnes of CO2-equivalent 2024 — 1170th Total and environment-related patents - FUAs — Patent applications 9.2 Patents 2022 down 31.3% 461st Land surface temperature - Cities and FUAs — Daytime summer land 27.08 Degrees celsius 2024 down 7.4% 1028th Land surface temperature - Cities and FUAs — Daytime winter land 5.75 Degrees celsius 2024 up 182.2% 805th Land surface temperature - Cities and FUAs — Daytime yearly land 18.16 Degrees celsius 2024 down 19.7% 1087th Land surface temperature - Cities and FUAs — Nighttime summer land 15.69 Degrees celsius 2024 down 4.9% 733rd Land surface temperature - Cities and FUAs — Nighttime winter land -2.18 Degrees celsius 2024 up 52.6% 994th Land surface temperature - Cities and FUAs — Nighttime yearly land 6.53 Degrees celsius 2024 down 19.2% 1028th Air pollution - Cities and FUAs — Population exposure to nitrogen 46.96 Microgrammes per cubic metre 2025 — 193rd Air pollution - Cities and FUAs — Population exposure to ozone 109.76 Microgrammes per cubic metre 2025 — 197th Air pollution - Cities and FUAs — Population exposure to PM10 39.5 Microgrammes per cubic metre 2025 — 578th Air pollution - Cities and FUAs — Population exposure to PM2.5 33.87 Microgrammes per cubic metre 2025 — 392nd