Natural Environment Monitoring 2011, No 12, 51-58
THE ROLE OF NATURAL BARRIERS IN THE SPREAD OF TRANSPORT POLLUTION FROM THE EMISSION LINE
Małgorzata Anna Jóźwiak, Bartosz Jachymczyk
Summary
The transport routes are filled with greenery in order to increase the attractiveness of the landscape, use of natural trees and shrubs for the exchange of air masses, mute noise, retention of rainwater and protection against exhaust and automotive pollution. In many situations, expressways run through, located on both sides of the roadway, natural forests complexes. The intensity of operating routes is very high, resulting in increased emissions of pollutants from complete and incomplete combustion of petroleum fuels and the friction of tires on asphalt road surface. These pollutants are: sulfur dioxide (SO2), carbon dioxide (CO2), carbon monoxide (CO), nitrogen oxides (NOx), tetraethyl lead, non-methane volatile organic compounds (NMVOCs), PAHs, aldehydes, dioxins, particulates, heavy metals, including chromium, cadmium, lead. The aim of the study is to demonstrate the role of trees growing along the expressways as a natural barrier to the spread of pollutants from the emission line. In the method bioindicator Hypogymnia phosodes – lichen indicator was used, which was transplanted at the designated points of research
