Environment in Hong Kong 182 indicators covering environment for Hong Kong. IndicatorLatest Year10-yr change Rank Nitrous oxide (N2O) emissions from Power Industry (Energy) (Mt CO2e) 0.0001 Mt CO2e per square kilometre 2023 down 50.4% 3rd Nitrous oxide (N2O) emissions from Transport (Energy) (Mt CO2e), per 0.0001 Mt CO2e per square kilometre 2023 up 78.4% 3rd Nitrous oxide (N2O) emissions from Waste (Mt CO2e), per square 0.0002 Mt CO2e per square kilometre 2023 up 6.3% 2nd Aquaculture production (metric tons), per square kilometre 1.96 metric tons per square kilometre 2023 down 45.3% 17th Capture fisheries production (metric tons), per square kilometre 82.46 metric tons per square kilometre 2023 down 49.1% 9th Total fisheries production (metric tons), per square kilometre 84.42 metric tons per square kilometre 2023 down 49.0% 9th Land use hidden — Other areas 1,010 Square kilometres 2023 up 1.1% 145th Land use hidden — Permanent meadows and pastures 10 Square kilometres 2023 unchanged 168th Land use hidden — Land area 1,050 Square kilometres 2023 unchanged 156th Land use hidden — Cropland 30 Square kilometres 2023 down 26.8% 172nd Land use hidden — Total area 1,110 Square kilometres 2023 up 0.9% 156th Arable land use per person 0.0003 hectares per person 2023 down 38.5% 205th Emissions of air pollutants 677,510 tonnes 2022 down 25.6% 36th F-gases emissions from Industrial Processes 0.2321 Mt CO2e 2024 up 35.7% 130th Carbon intensity of GDP 0.0695 kg CO2e per 2021 PPP $ of GDP 2024 down 34.7% 160th Coal rents 0.0% 2021 — 71st Total greenhouse gas emissions excluding LULUCF 2.7% 2024 down 92.1% 148th Nitrous oxide (N2O) emissions (total) excluding LULUCF 3.7% 2024 down 58.8% 144th Carbon dioxide (CO2) emissions (total) excluding LULUCF -1.2% 2024 down 103.4% 151st Methane (CH4) emissions (total) excluding LULUCF 48.7% 2024 up 53.5% 85th Carbon dioxide (CO2) emissions from Waste 0.0113 Mt CO2e 2024 up 6.6% 36th Exposure to outdoor air pollution 15.8 µg/m³ 2024 down 38.8% 110th Grazing land use over the long-term 0 hectares 2025 — 189th Land use over the long-term 0 hectares 2025 — 189th Using at least basic drinking water sources in urban vs. rural areas 100.0% 2024 up 0.3% 1st Share of urban population using at least basic water services 100.0% 2024 up 0.3% 1st Using improved water sources: urban vs. rural population 100.0% 2024 up 0.3% 1st Share of the population using improved water sources 100.0% 2024 up 0.3% 1st Share of population not using improved drinking water sources 0.0% 2024 down 100.0% 182nd People not using improved drinking water sources 0 people 2024 down 100.0% 182nd People using at least a basic drinking water source 7.41 million people 2024 up 1.6% 100th Share of population using at least a basic drinking water source 100.0% 2024 up 0.3% 1st Using improved drinking water sources vs. GDP per capita 100.0% 2024 up 0.3% 1st Land use 3,000 hectares 2023 down 26.8% 202nd Drinking water service usage 100.0% 2024 up 0.4% 1st People not using safely managed drinking water sources 0 people 2024 down 100.0% 152nd Share using safely managed drinking water 100.0% 2024 up 0.4% 1st River flooding exposure — Cropland share exposed to river flooding 0 Percentage of agricultural land area 2022 — 142nd Forest rents 0.0% 2021 down 62.2% 177th Environment-related technologies patents — Patent applications 927 Patents 2023 up 256.4% 17th Environment-related technologies patents — Patent grants 85 Patents 2022 down 36.9% 20th Protected area coverage of marine key biodiversity areas 32.5% 2025 unchanged 120th Protected area coverage of mountain key biodiversity areas 57.0% 2025 unchanged 77th Share of terrestrial Key Biodiversity Areas that are protected 48.9% 2025 unchanged 110th Plastic waste per capita imports vs. exports 1.34 kilograms 2024 down 99.7% 30th Share of global plastic waste imports 0.2% 2024 down 99.0% 36th Drinking water usage in urban areas 0 people 2024 — 84th People using improved drinking water sources 0 people 2024 down 100.0% 193rd Drinking water services 0 people 2024 — 119th Share of freshwater Key Biodiversity Areas that are protected 16.6% 2025 unchanged 141st Plastic waste exports 6,535 tonnes 2024 down 99.8% 55th Land cover and land cover change — Grassland 13.78 Square kilometres 2022 up 3.1% 144th Share of urban and rural population using safely managed drinking water 100.0% 2024 up 0.4% 1st Using safely managed drinking water in urban vs. rural areas 100.0% 2024 up 0.4% 1st Land cover and land cover change — Gain of artificial surfaces 55.77 Square kilometres 2022 up 69.6% 138th Land cover and land cover change — Loss of cropland 60.19 Square kilometres 2022 up 45.9% 139th Forest certified for sustainable use 0 thousands of hectares 2024 — 85th Per capita plastic waste exports and imports by income group 1.34 kilograms 2024 down 99.7% 30th Share of plastic waste exports 0.2% 2024 down 99.1% 52nd Municipal waste recycled 1.97 million tonnes 2023 down 2.0% 24th ← Previous Page 3 of 4 Next →