In Eco-Airport, environmental factors to be considered are (1) Air, (2) Noise, Vibration,
(3) Water, (4) Soil, (5) Waste, (6) Energy, (7) Natural environment, and (8) Others . These are 7 basic environment factors. Major environmental factors on which importance is to be attached especially shall be selected of each airport by taking into account the airport operational situation, natural conditions in surrounding areas of each airport, etc.