%0 Article
%T Effect of air pollution on the volatile oil in needles of Scots pine (Pinus sylvestris L.)
%A Lehtiö, Helena
%D 1981
%J Silva Fennica
%V 15
%N 2
%R doi:10.14214/sf.a15051
%U https://silvafennica.fi/article/5110
%X <p>The amount of volatile oil and monoterpene composition in Scots pine (<em>Pinus sylvestris</em> L.) needles were studied in trees growing near two factories and in the city of Kuopio, Central Finland. Trees in these locations are exposed principally to sulphur dioxide and fluoride emissions.</p>
<p>The amount of volatile oil increased with increasing injury class in the trees growing near the fertilizer factory. The amounts of volatile oil in trees near the pulp mill differed in the various injury classes. More oil was found in younger needles. The greatest differences in monoterpene composition were in the amounts of camphene, α-pinene, myrcene and tricyclene.</p>
<p>The PDF includes a summary in Finnish.</p>