Finavia aims to reduce environmental loading resulting from substances used in anti-skid treatment and in anti-and de-icing of aircraft through good planning at the construction stage. Water quality is monitored regularly.
At airports the following substances cause loading on waterways
- anti-icing treatment of runways
- de-icing and anti-icing treatment carried out at remote de-icing areas or in the apron area.
Finavia uses acetates and formates for runway anti-skid treatment. Ground-forwarding companies use propylene glycol based liquids for aircraft anti-icing and de-icing treatment. The substances are not classified as harmful, but they still cause loading on waterways.
Anti-icing treatment of runways
Airport winter maintenance is in key position in Finland to ensure the safety and punctuality of air traffic. The northern conditions in Finland require diversely skilled maintenance units and efficient machinery. Winter maintenance at Finavia airports is of high and competitive international standard.
Skid prevention methods
Mechanical methods, sweeping and ploughing, are the main skid-prevention methods used on runways. Chemical anti-skid agents are required for removing frost and ice from the runway surface and for skid prevention