Air pollution in eastern Lapland : challenge for an environmental measurement station.

• Main Authors: Hari, Pertti., Kulmala, Markku., Pohja, Toivo, Lahti, Tapani., Siivola, Erkki., Palva, Lauri, Aalto, Pasi, Hämeri, Kaarle, Vesala, Timo, Luoma, Sari., Pulliainen, Erkki.
• Other Authors: The Finnish Society of Forest Science, Suomen metsätieteellinen seura, Finlands Forstvetenskapliga Samfund
• Format: Article in Journal/Newspaper
• Language: English
• Published: The Finnish Society of Forest Science and The Finnish Forest Research Institute 2009
• Subjects: ilman saastuminen; mittausmenetelmät; automaatio; fotosynteesi; aerosolit; rikkidioksidi; otsoni; sää; Kola Peninsula; Monchegorsk; kola peninsula; Lapland
• Online Access: http://hdl.handle.net/1975/9160

The Värriö environmental measurement station has been designed and constructed during 1991 and 1992. The measurement system consists of measurement units for gases (sulphur dioxide, ozone, carbon dioxide), particles, photosynthesis and irradiation. A meteorological station is also included. The preliminary measurement period was started on August, 1991. During the first year (1991–1992) some parts of the system were redeveloped and rebuilt. Full, continuous measurements started in August 1992. The system has been working quite reliably, with good accuracy. The preliminary results show that pollution episodes are observed when the wind direction is from Monchegorsk or Nikel, the main emission sources in Kola Peninsula.