Contamination of environment in the road surroudings – impact of road salting on Norway spruce(Picea abies)and Scots pine(Pinus sylvestris)

Effect of NaCl road salt on the ionic composition of soils and Aesculus hippocastanum L. foliage and leaf damage intensity

“…The accumulation of Na + in leaves affects photosynthetic components such as enzymes, chlorophylls and carotenoids 52 , 53 . Furthermore, sodium uptake is associated with changes in other cation concentrations, and the antagonistic relationships between Na + and K + , Ca 2+ , and Mg 2+ in several NaCl salt-stressed plants are well studied 50 , 54 – 56 . In the present study, a leaf damage of 50% and more (index 5–6) was simultaneously associated with excessive Na + concentration (usually well above 1.400 mg 100 g −1 d.w.) and significantly reduced levels of other cations, especially potassium.…”

Accumulation of antimony and lead in leaves and needles of trees: The role of traffic emissions

“…There are pros and cons with washing. Sb and Pb on leaf/needle surfaces represent the total deposition (e.g., Hegrová et al [ 21 ]), which is available for consumption by herbivores. On the one hand it is of value to know how much of the leaf/needle Sb that has been integrated with the green tissue.…”

“…The accumulation of Sb in urban trees has not been investigated to any large extent, although [ 20 ] made observations of a range of elements, including Sb and Pb, in leaves and needles of trees in and near Barcelona, Spain. Hegrová et al [ 21 ] studied the contamination by a range of elements of near-road environments in the Czech Republic, in soil and Scots pine ( Pinus sylvestris ) needles. They found the concentrations of Sb to be the most strongly increased out of 19 elements.…”