Damage to vegetation by vehicle emissions on Azerbaijan's main roads

The influence of vehicle pollutants on the introduced tree and shrub plants along the central roads was investigated. It was revealed that acid gases are dominant among the exhaust gases of gasoline and diesel fuel, which directly destroy the chloroplast of the leaf and form burn spots. A group of plants resistant to pollutants has been determined. They have damaged areas of no more than 10-15% in approximately stable plants, and in unstable plants the damages are up to 23-30%, which are not recommended for landscaping alongside the roads. The distance of planting from the road is set at 4 to 10 m. It is proposed to exclude the European olive (Olea europaea L.) from the composition of landscaping, which accumulates ions of heavy metals in the leaves and fruits, namely lead ethylate. When using the olives growing on the roads, it causes severe poisoning, using them even in canned form can cause deep poisoning.