engleski

Comparasion of fine particulate concentrations in urban area traffic exposed area and landfill in the Zagreb city

This paper presents the results of measurement of fine particulate PM10 in Zagreb air, at three different locations, during the years of 2011 and 2012. Air quality monitoring in Institute of Public Health ”Dr.A.Stampar”, began in December of 2003. The monitors are located at sites characterized by different exposure to emission sources: residential urban area, area mainly exposed to traffic emissions, and landfill area also characterized by high traffic density. Weekly behaviors of concentration levels are separately presented for the cold and warm seasons of the year. The reduction of concentration levels is also observed during the weekends compared to working days. Concentration levels are quite uniform over the entire city, with the lowest values for residential area of Zagreb, higher values for site with high traffic density and the highest for landfill site. Workday behaviors generally show a progressive increase of the daily concentration, reaching a maximum in the middle of the week followed by a downward trend towards the minimum always observed on weekends.The reduction in concentration level is consistent with observed reductions of the traffic volume between weekends and workdays and significant traffic decrease on the 1st of November.

PM10; urban air pollution; descriptive statistics; traffic emission; weekly behavior; traffic decreasing effect.

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