Soil and water
Glycol is sprayed on aircraft in winter to prevent the formation of ice. Spilt glycol causes oxygen depletion in water. The spilt glycol that ends up on the ground after the aircraft has been de-iced is suctioned up by a glycol recovery vehicle. The fluid is then stored until it is transported to Luleå Airport, which cleans the spilt glycol and reuses this purified glycol in its de-icing procedure.
Urea is used for anti-skid treatment of landing runways. At many airports, urea has been replaced by new acetate-based agents. Nitrogen from urea contributes to eutrophication (excess fertilisation).
Water at Umeå Airport is transported through the surface water system, which empties into the Ume river. The airport has four sampling points that are continuously monitored under a control programmes developed in partnership with the regulatory authority. A recent investigation showed that the glycol added to the Ume river accounts for a maximum of 0.2 per cent of total organic carbon (TOC) conveyed into the river during the de-icing season.
Swedavia, which owns and operates Umeå Airport, carried out a PCB inventory of building materials containing PCBs at the airport in 2007. It was noted in the study and in analyses of its soil survey that the airport does not have any contaminants that require remediation.
Umeå Airport heats all of its buildings with carbon-neutral district heating. Another way to reduce atmospheric emissions is for Umeå Airport to encourage airlines to use modern aircraft, which are better for the environment – take-off charges are lower the cleaner an aircraft’s engines are. The aim is to prompt airlines with older aircraft to replace them with more environmentally-friendly alternatives.
There are two recycling centres in the terminal that tenants use to sort waste. Umeå Airport’s staff manage the waste and temporarily store it at the airport’s environmental station. The material is then picked up by an approved contractor, who transports the different categories of waste to the appropriate waste station. All combustible material is recycled as district heating apart from paper and cardboard, which is sent to a sorting facility in Holmsund, which makes sure that the materials are sent for recycling.
The airport implements noise insulation measures for homes exposed to aviation noise. The aim of these noise-limitation measures is to ensure that the constant aviation noise index indoors does not exceed 30 dB(A) and the maximum noise level indoors at night does not exceed 45dB(A) for normally occurring aircraft types. These homes are mostly in Storsandskär, Myrsand, Bergsboda and Hällastrand. The airport prepares a flight path monitoring report each quarter, which it submits to the regulatory authority.