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Open AccessArticle

Physico-Chemical Characterization of an Urban Rainwater (Zagreb, Croatia)

Division for Marine and Environmental Research, Ruđer Bošković Institute, Bijenička 54, 10000 Zagreb, Croatia
National Institute of Chemistry, Hajdrihova 19, SI-1000 Ljubljana, Slovenia
Faculty of Agriculture, Department of Soil Amelioration, University of Zagreb, Svetošimunska cesta 25, 10000 Zagreb, Croatia
Author to whom correspondence should be addressed.
Atmosphere 2020, 11(2), 144;
Received: 20 December 2019 / Revised: 20 January 2020 / Accepted: 22 January 2020 / Published: 28 January 2020
(This article belongs to the Special Issue Atmospheric Aqueous-Phase Chemistry)
The characterization of organic matter (OM) and trace elements (TEs) was conducted in bulk precipitation samples collected in an urban area of Croatia (Zagreb center), from January 2009 to October 2011 (N = 31). Characterization of OM was performed by measurement of dissolved (DOC) and particulate forms of organic carbon (POC), as well as surface-active substances, copper complexing capacity and reduced sulfur species which were determined electrochemically. Concentrations of TEs (Al, Fe, Zn, Cr, Ba, Mn, Cu, Sr, Ti, Pb, V, Ni, Rb, Sb, As, Sn, Se, Co, Cd, Mo) were analyzed by HR ICP-MS. The most important outcome of this study is confirmed relatively low concentrations of DOC (0.69–4.86 mgC L−1) and TEs. Daily fluxes of Zn, Pb, Ni, As, and Cd were two to three times lower than that of those reported for an urban industrial site in Europe. Additionally, this study shows that the value and reactivity of rainwater DOC has not considerably changed if compared with the results from the 1998–1999 study (0.78–4.39 mgC L−1). High traffic density and thermal power plants are assumed to be the main local sources of pollutants in Zagreb. Using Al as a reference element, it was found that Cd, Sb, and Cu were associated with anthropogenic sources. The solubility of Sr, Zn, Cd, Ni, Cr, As, and Rb was higher than 70%. Another critical characteristic of precipitation composition is episodic variation in POC concentration because of Saharan dust transport. Obtained data can be valuable for environmental quality assessment, as well as for insight into atmospheric deposition processes. View Full-Text
Keywords: organic carbon; surface-active substances; trace elements; reduced sulfur species; long-range transport organic carbon; surface-active substances; trace elements; reduced sulfur species; long-range transport
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MDPI and ACS Style

Orlović-Leko, P.; Vidović, K.; Ciglenečki, I.; Omanović, D.; Sikirić, M.D.; Šimunić, I. Physico-Chemical Characterization of an Urban Rainwater (Zagreb, Croatia). Atmosphere 2020, 11, 144.

AMA Style

Orlović-Leko P, Vidović K, Ciglenečki I, Omanović D, Sikirić MD, Šimunić I. Physico-Chemical Characterization of an Urban Rainwater (Zagreb, Croatia). Atmosphere. 2020; 11(2):144.

Chicago/Turabian Style

Orlović-Leko, Palma; Vidović, Kristijan; Ciglenečki, Irena; Omanović, Dario; Sikirić, Mathieu D.; Šimunić, Ivan. 2020. "Physico-Chemical Characterization of an Urban Rainwater (Zagreb, Croatia)" Atmosphere 11, no. 2: 144.

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