Organic matter in the bulk precipitations in Zagreb and Šibenik, Croatia

Orlović-Leko, Palma; Plavšić, Marta; Bura-Nakić, Elvira; Kozarac, Zlatica; Ćosović, Božena

doi:10.1016/j.atmosenv.2008.11.006

Cited by 31 publications

(24 citation statements)

References 47 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The air mass sources and rainfall amount can affect rainwater DOC concentrations [18,20]. At our location, a weak and significant negative correlation (r = −0.39: p < 0.05) between concentrations of DOC and rainfall amount was found, similar to what has been observed in our previous study [22]. According to Kieber et al [15], this result may reflect the possibility that some components of DOC are formed in the atmospheric aqueous phase continuously during rain events.…”

Section: Organic Carbonsupporting

confidence: 89%

“…The DOC concentrations from this study are not significantly different from the data of our previous two studies conducted in the Zagreb area from 1998 to 1999 and 2003 to 2007 (0. 78-4.39 and 0.67-4.03 mgC L −1 ) [21,22]. Additionally, a very similar average concentration of DOC (1.85 ± 0.81 mgC L −1 ) was calculated for the sampling period from 1998 to 1999 at the same location (center of Zagreb) [21].…”

Section: Organic Carbonmentioning

confidence: 60%

“…The aim of this study is the characterization of OM (through measurement of DOC, particulate organic carbon POC, SAS, RSS) and TEs in precipitation of an urban environment, in Zagreb city, Croatia. In our previous studies, conducted in 1998-1999 and 2003-2007, spatial and temporal variability of DOC concentrations in bulk precipitation of urban and coastal areas in Croatia have been discussed [21,22]. However, in accordance with the literature that emphasized a lack of data on DOC measurements in rainwater in central and eastern Europe [17], as well as trends based on the long-term observations of DOC in rainwater [8] (and references therein), in this paper, we focus on studying the possible changes that may have occurred in the concentration and reactivity of DOC between two sampling periods (1998-1999 and 2009-2011), in line with socio-economic and global changes.…”

Section: Introductionmentioning

confidence: 99%

“…Because of these properties, atmospheric SAS plays an essential role in various atmospheric processes that reflect climate change [24] (and references therein). Physico-chemical properties of OM are often more important than the amount present [22]. Atmospheric humic-like substances, HULIS were found to be an important class of SAS in aerosol particles [24,27,28] (and references therein).…”

mentioning

confidence: 99%

See 3 more Smart Citations

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

et al. 2020

Self Cite

View full text Add to dashboard Cite

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.

show abstract

Section: Organic Carbonsupporting

confidence: 89%

Section: Organic Carbonmentioning

confidence: 60%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

See 2 more Smart Citations

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

et al. 2020

Self Cite

View full text Add to dashboard Cite

show abstract

“…At the individual site level, seasonal variations in DOC fluxes are attributed to variations in DOC concentrations rather than precipitation amounts, because precipitation totals were not significantly different among seasons. Higher summertime DOC concentrations and deposition rates have been previously described for rural continental sites [ Likens et al ., ; Orlović‐Leko et al ., ; Mladenov et al ., ] and attributed to increased emissions of organic carbon from vegetation.…”

Section: Resultsmentioning

confidence: 99%

Wet atmospheric deposition of organic carbon: An underreported source of carbon to watersheds in the northeastern United States

2017

View full text Add to dashboard Cite

We measured wet atmospheric deposition of dissolved organic carbon (DOC) over 6 years at a network of 12 monitoring sites across Pennsylvania, quantified rates of wet DOC deposition, and developed the first statewide estimates of inputs of DOC to watersheds via wet deposition. Average annual volume‐weighted concentration of DOC was 0.71 mg C L−1. Annual wet deposition fluxes of DOC varied between sites and years, ranging from 3 to 13 kg C ha−1 yr−1, with an average value of 8 kg C ha−1 yr−1 across all sites and years and are of the same order of magnitude as literature values for riverine organic carbon fluxes in the northeastern United States. The rates of wet DOC deposition showed a pronounced seasonality and spatial distribution, with highest deposition rates observed in the summer, especially at the sites located in western Pennsylvania. Significant links between DOC and inorganic constituents in precipitation, such as sulfate and inorganic nitrogen forms, point to the similarity of sources and atmospheric processing and suggest that DOC may potentially affect their atmospheric transport and ecological fate. Observational data resulting from this study underscore the potential significance of atmospheric deposition as an external input of reactive carbon species to watersheds and may be useful for constraining atmospheric carbon models and evaluating atmospheric influences on ecosystems.

show abstract