engleski

Analysis of Monitoring Air Quality and Road Traffic Generated Pollutant Emissions in the City of Zagreb

The greatest impact on air pollution in the city of Zagreb has road vehicles which are mostly responsible for air contamination. Shown in percentages the number are: NOX – 35%, CO – 44%, SOX – 7%, Pb – 38%, NMVOC - 16%, suspended particles -30%, according to data of Central Bureau of Statistics for the year 2007. Until the year 2010 in Zagreb there were 12 measuring sights installed, of which six as a part of city network. The measurements show that the quality of air is third category it comes to PM10 on one measuring sight, second category when it comes to NO2 and ozone on three measuring sights, PM10 on four measuring sights. In relation to the other harmful components the quality of air is first category, which means that the measured values are under recommended values, the air is clean or slightly contaminated, so we can conclude that the air quality has considerably improved in comparison to the '60-s, the '70-s, '80-s and even the '90-s. Especially big problems are intersections because they were not built for the large amount of traffic as there is today and traffic lights control is not yet traffic-oriented. Some of the suggestions for the decreasing emission of harmful components in exhaust gases emissions in Zagreb are: reconstruction of road network (emphasis on intersections), introduction of traffic oriented control, exploitation of ITS for conduction and better organization of transport stimulation of “clean” cars import, fuel quality improvement etc.

air pollution; intersection; monitoring of air pollution

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