The interrelation has been investigated of lead and manganese leaf content of birch (Betula pendula Roth.) growing
near major roads in Nizhni Novgorod and level values of lipid peroxidation, chlorophylls, carotenoids and fluctuating
asymmetry. The lead content has been positively correlated with the levels of lipid peroxidation, chlorophyll
A and carotenoids. The manganese content has not shown similar interrelations. Heavy auto traffic load has led to a
significant manganese content decrease (5-10 times) as compared to that of control biotope plants, in particular, due
to an increase in lead content in the leaf lamina.
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