Environment in Nagano 12 indicators covering environment for Nagano. IndicatorLatest Year10-yr change Rank Drought - Cities and FUAs — Land soil moisture anomaly -4.9 Percentage change 2025 down 172.2% 857th Greenhouse gas emissions - Cities and FUAs — GHG emissions from waste 0.03 Tonnes of CO2-equivalent 2024 down 25.0% 590th Land surface temperature - Cities and FUAs — Daytime summer land 27.12 Degrees celsius 2024 down 4.1% 1033rd Land surface temperature - Cities and FUAs — Daytime winter land 4.87 Degrees celsius 2024 up 89.9% 903rd Land surface temperature - Cities and FUAs — Daytime yearly land 17.84 Degrees celsius 2024 down 2.1% 1138th Land surface temperature - Cities and FUAs — Nighttime summer land 16.52 Degrees celsius 2024 down 3.5% 644th Land surface temperature - Cities and FUAs — Nighttime winter land -2.4 Degrees celsius 2024 up 65.9% 1020th Land surface temperature - Cities and FUAs — Nighttime yearly land 7.78 Degrees celsius 2024 up 28.5% 737th Air pollution - Cities and FUAs — Population exposure to nitrogen 9.31 Microgrammes per cubic metre 2025 — 1087th Air pollution - Cities and FUAs — Population exposure to ozone 68.27 Microgrammes per cubic metre 2025 — 883rd Air pollution - Cities and FUAs — Population exposure to PM10 24.55 Microgrammes per cubic metre 2025 — 1117th Air pollution - Cities and FUAs — Population exposure to PM2.5 7.9 Microgrammes per cubic metre 2025 — 1230th