3. Water: Attempt to prevent the pollution of water area and underground water caused by drainage, etc following the airport operation. Also, try to reduce and reutilize the water consumption volume and the preserve water resources at airport.
4. Soil: Prevent the soil pollution caused by oil, chemicals and various materials used following the airport operation.
5. Waste: Attempt further to change various wastes produced at airport to resources, control the discharge volume of wastes and promote recycling.