Environment in Greater Perth 13 indicators covering environment for Greater Perth. IndicatorLatest Year10-yr change Rank Drought - Cities and FUAs — Land soil moisture anomaly -13.3 Percentage change 2025 up 13.6% 1256th Greenhouse gas emissions - Cities and FUAs — GHG emissions from waste 0.68 Tonnes of CO2-equivalent 2024 up 3.0% 60th Total and environment-related patents - FUAs — Patent applications 198 Patents 2022 up 11.2% 79th Land surface temperature - Cities and FUAs — Daytime summer land 38.54 Degrees celsius 2024 up 2.1% 147th Land surface temperature - Cities and FUAs — Daytime winter land 17.07 Degrees celsius 2024 down 7.1% 255th Land surface temperature - Cities and FUAs — Daytime yearly land 30.27 Degrees celsius 2024 up 1.4% 177th Land surface temperature - Cities and FUAs — Nighttime summer land 19.67 Degrees celsius 2024 up 7.6% 359th Land surface temperature - Cities and FUAs — Nighttime winter land 8.76 Degrees celsius 2024 up 14.4% 170th Land surface temperature - Cities and FUAs — Nighttime yearly land 14.36 Degrees celsius 2024 up 11.9% 190th Air pollution - Cities and FUAs — Population exposure to nitrogen 5.31 Microgrammes per cubic metre 2025 — 1216th Air pollution - Cities and FUAs — Population exposure to ozone 53.31 Microgrammes per cubic metre 2025 — 1110th Air pollution - Cities and FUAs — Population exposure to PM10 38.37 Microgrammes per cubic metre 2025 — 636th Air pollution - Cities and FUAs — Population exposure to PM2.5 29.61 Microgrammes per cubic metre 2025 — 552nd