Environment in Busan 15 indicators covering environment for Busan. IndicatorLatest Year10-yr change Rank Drought - Cities and FUAs — Land soil moisture anomaly -10.9 Percentage change 2025 down 273.0% 1202nd Historical exposure to drought — Cropland soil moisture anomaly -9.68 Percentage change 2025 down 322.1% 2717th Historical exposure to drought — Land soil moisture anomaly -11.34 Percentage change 2025 down 263.0% 2933rd Greenhouse gas emissions - Cities and FUAs — GHG emissions from waste 1.05 Tonnes of CO2-equivalent 2024 up 28.0% 34th River flooding exposure — Cropland share exposed to river flooding 18.54 Percentage of agricultural land area 2022 down 14.2% 207th Land surface temperature - Cities and FUAs — Daytime summer land 29.89 Degrees celsius 2024 down 4.5% 700th Land surface temperature - Cities and FUAs — Daytime winter land 7.69 Degrees celsius 2024 up 41.5% 691st Land surface temperature - Cities and FUAs — Daytime yearly land 18.08 Degrees celsius 2024 up 1.6% 1097th Land surface temperature - Cities and FUAs — Nighttime summer land 20.9 Degrees celsius 2024 up 6.3% 244th Land surface temperature - Cities and FUAs — Nighttime winter land -0.196 Degrees celsius 2024 up 91.3% 759th Land surface temperature - Cities and FUAs — Nighttime yearly land 8.05 Degrees celsius 2024 up 6.4% 678th Air pollution - Cities and FUAs — Population exposure to nitrogen 20.17 Microgrammes per cubic metre 2025 — 795th Air pollution - Cities and FUAs — Population exposure to ozone 69.13 Microgrammes per cubic metre 2025 — 865th Air pollution - Cities and FUAs — Population exposure to PM10 24.57 Microgrammes per cubic metre 2025 — 1108th Air pollution - Cities and FUAs — Population exposure to PM2.5 15.04 Microgrammes per cubic metre 2025 — 993rd