Environment in Alkmaar 13 indicators covering environment for Alkmaar. IndicatorLatest Year10-yr change Rank Drought - Cities and FUAs — Land soil moisture anomaly -9.6 Percentage change 2025 down 382.4% 1143rd Greenhouse gas emissions - Cities and FUAs — GHG emissions from waste 0.03 Tonnes of CO2-equivalent 2024 down 25.0% 584th Total and environment-related patents - FUAs — Patent applications 12.1 Patents 2022 down 63.1% 422nd Land surface temperature - Cities and FUAs — Daytime summer land 25.21 Degrees celsius 2024 down 16.3% 1218th Land surface temperature - Cities and FUAs — Daytime winter land 3.43 Degrees celsius 2024 up 10.2% 1072nd Land surface temperature - Cities and FUAs — Daytime yearly land 17.36 Degrees celsius 2024 down 4.5% 1184th Land surface temperature - Cities and FUAs — Nighttime summer land 13.26 Degrees celsius 2024 up 2.2% 1121st Land surface temperature - Cities and FUAs — Nighttime winter land 0.2907 Degrees celsius 2024 up 124.8% 695th Land surface temperature - Cities and FUAs — Nighttime yearly land 7.12 Degrees celsius 2024 up 15.3% 876th Air pollution - Cities and FUAs — Population exposure to nitrogen 42.69 Microgrammes per cubic metre 2025 — 342nd Air pollution - Cities and FUAs — Population exposure to ozone 103.3 Microgrammes per cubic metre 2025 — 272nd Air pollution - Cities and FUAs — Population exposure to PM10 31.63 Microgrammes per cubic metre 2025 — 916th Air pollution - Cities and FUAs — Population exposure to PM2.5 21.99 Microgrammes per cubic metre 2025 — 893rd