Environment in Hiroshima 12 indicators covering environment for Hiroshima. IndicatorLatest Year10-yr change Rank Drought - Cities and FUAs — Land soil moisture anomaly -6.7 Percentage change 2025 down 937.5% 986th Greenhouse gas emissions - Cities and FUAs — GHG emissions from waste 0.08 Tonnes of CO2-equivalent 2024 down 20.0% 371st Land surface temperature - Cities and FUAs — Daytime summer land 29.15 Degrees celsius 2024 up 0.2% 799th Land surface temperature - Cities and FUAs — Daytime winter land 8.67 Degrees celsius 2024 up 34.6% 657th Land surface temperature - Cities and FUAs — Daytime yearly land 19.49 Degrees celsius 2024 down 1.5% 926th Land surface temperature - Cities and FUAs — Nighttime summer land 19.57 Degrees celsius 2024 up 3.3% 370th Land surface temperature - Cities and FUAs — Nighttime winter land 1.82 Degrees celsius 2024 up 2,519.2% 529th Land surface temperature - Cities and FUAs — Nighttime yearly land 9.58 Degrees celsius 2024 up 3.6% 523rd Air pollution - Cities and FUAs — Population exposure to nitrogen 11.71 Microgrammes per cubic metre 2025 — 973rd Air pollution - Cities and FUAs — Population exposure to ozone 63.23 Microgrammes per cubic metre 2025 — 968th Air pollution - Cities and FUAs — Population exposure to PM10 23.84 Microgrammes per cubic metre 2025 — 1128th Air pollution - Cities and FUAs — Population exposure to PM2.5 11 Microgrammes per cubic metre 2025 — 1053rd