BULETINUL INSTITUTULUI POLITEHNIC DIN IAŞI Publicat de Universitatea Tehnică „Gheorghe Asachi” din Iaşi Tomul LIX (LXIII), Fasc. 6, 2013 Secţia CONSTRUCŢII. ARHITECTURĂ EIGHT YEAR PERIOD ANALYSIS FOR OUTDOOR POLLUTANT CONCENTRATION LEVELS IN BUCHAREST BY VALENTIN M. RADU, VLAD IORDACHE * and TIBERIU CATALINA Technical University of Civil Engineering Bucharest Faculty of Building Services Received: November 11, 2013 Accepted for publication: December 19, 2013 Abstract. This paper summarizes some of the result of an eight yearlong continuous measurements and study of atmospheric pollutants and meteorological data for Bucharest, with focus on ozone concentration. Higher ozone levels were recorded outside the city and lower towards the city center. Weekday – weekend studies were conducted, to find concentration variations differences along a week, with no major differences. Meteorological data were recorded in order to study the association of pollutants with meteorological parameters, mainly temperature. Temperature correlation analysis was conducted to understand the variation of ozone concentration along with temperature variation. Ozone concentrations recorded outside Bucharest indicate a decrease tendency for the last four years, with no exposure limit exceeding. Key words: ozone concentration; temperature correlation; Bucharest pollution; monitoring network. 1. Introduction Bucharest city, capital of Romania, is affected by its air pollution with consequences that may lead to serious problems for the inhabitants and the * Corresponding author: viordach@yahoo.com