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Observations of Ground-level Ozone and NO2 in Northernmost Sweden, Including the Scandian Mountain Range

Journal article
Authors Jenny Klingberg
Mats P. Björkman
G. Pihl Karlsson
Håkan Pleijel
Published in Ambio
Volume 38
Issue 8
Pages 448-451
Publication year 2009
Published at Department of Plant and Environmental Sciences
Pages 448-451
Language en
Links ambio.allenpress.com/archive/0044-7...
Keywords ozone, nitrogen dioxide, Scandian Mountain Range, spring peak, growing season
Subject categories Environmental chemistry, Meteorology and Atmospheric Sciences

Abstract

Ozone was measured using passive diffusion samplers at alpine Latnjajaure (980 m above sea level [asl]) in the northern Scandian Mountain Range during spring and summer 2006–2008, and year-round at three further sites in northernmost Sweden 2004–2008. These observations were compared with ozone concentrations from three permanent monitoring stations using ultraviolet absorption instruments. Ozone concentrations at Latnjajaure were higher than at the closest monitoring site, illustrating the importance of high elevation for ozone. At the northern sites the ozone spring peak was more pronounced, higher, and earlier (April maximum) compared to a site in south Sweden (May maximum). During summer, ozone concentrations were higher in south Sweden. Presently, the growing season largely starts after the ozone spring peak in north Sweden but is likely to start earlier in the future climate. This could lead to an increased risk for ozone effects on vegetation if the current yearly ozone cycle persists.

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