Environment in Saint-Denis 13 indicators covering environment for Saint-Denis. IndicatorLatest Year10-yr change Rank Drought - Cities and FUAs — Land soil moisture anomaly 36.1 Percentage change 2025 up 131.4% 1st Greenhouse gas emissions - Cities and FUAs — GHG emissions from waste 0 Tonnes of CO2-equivalent 2024 — 1178th Total and environment-related patents - FUAs — Patent applications 1.3 Patents 2022 up 62.5% 717th Land surface temperature - Cities and FUAs — Daytime summer land 25.97 Degrees celsius 2024 down 5.9% 1166th Land surface temperature - Cities and FUAs — Daytime winter land 21.03 Degrees celsius 2024 down 5.1% 176th Land surface temperature - Cities and FUAs — Daytime yearly land 23.59 Degrees celsius 2024 down 2.3% 510th Land surface temperature - Cities and FUAs — Nighttime summer land 17.77 Degrees celsius 2024 down 1.4% 525th Land surface temperature - Cities and FUAs — Nighttime winter land 14.4 Degrees celsius 2024 down 0.7% 70th Land surface temperature - Cities and FUAs — Nighttime yearly land 16.09 Degrees celsius 2024 down 2.3% 135th Air pollution - Cities and FUAs — Population exposure to nitrogen 1.53 Microgrammes per cubic metre 2025 — 1305th Air pollution - Cities and FUAs — Population exposure to ozone 56.99 Microgrammes per cubic metre 2025 — 1033rd Air pollution - Cities and FUAs — Population exposure to PM10 51.94 Microgrammes per cubic metre 2025 — 261st Air pollution - Cities and FUAs — Population exposure to PM2.5 33.73 Microgrammes per cubic metre 2025 — 399th