Author(s)

Gy. Baranka & L. Bozo

Abstract

Urban air quality has been monitored by new network system since 1991 in Budapest. Statistical analysis of its data shows which are the most polluted sites in the city. Cumulative distribution of the data set indicates the percents of the exceedence of threshold values during the monitoring period. The average seasonal variations of the air pollutants have been investigated as well. Some possible temporal and spatial feature of air pollutants have been considered. Generally the tendency of NC>2 and CO concentration is decreasing, while TSP and 862 levels are similar during the period of 1991-1994. 1. Introduction The present general air pollution conditions in Budapest (more than 2 million inhabitants over 525 knf) are mostly determined by the emission from mobile sources (road traffic). The structure of the emission has changed significantly for the last 15-20 ye

Keywords