Original scientific paper
Total suspended particulate matter concentrations in Zagreb during the 1975-1993 period
Krešimir Šega
; Institute for Medical Research and Occupational Health, Zagreb, Croatia
Janko Hršak
; Institute for Medical Research and Occupational Health, Zagreb, Croatia
Abstract
Daily average mass concentrations of total suspended particulate matter were measured at three sampling sites in Zagreb, and evaluated for the period April 1975 - March 1993. Each sampling site represented a different town area (residential, business and administrative, industrial) with different traffic density and type of energent used for space heating.
The time trends of concentration levels could, to a certain extent, be attributed to traffic flow modification in the vicinity of the sampling sites, introduction of natural gas in dwellings and degree of energy consumption influenced by the standard of living. Periodograms show a well pronounced seasonal dependence of total suspended particulate matter concentrations, with high concentrations during winters. Analysis of the results in respect to the European Community air quality limits (1) and the levels of other pollutants (SO2 and smoke) leads to the conclusion that particulates being a persistent permanent problem have become a major issue concerning ambient air pollution in Zagreb.
Keywords
air quality limits; periodogram; seasonality; suspended particulate matter levels; urban area
Hrčak ID:
145373
URI
Publication date:
7.12.1995.
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