Atmospheric deposition of trace elements at urban and forest sites in central Poland Insight into seasonal variability and sources
PBN-AR
Instytucja
Wydział Chemii (Uniwersytet im. Adama Mickiewicza w Poznaniu)
Informacje podstawowe
Główny język publikacji
en
Czasopismo
ATMOSPHERIC RESEARCH (30pkt w roku publikacji)
ISSN
0169-8095
EISSN
Wydawca
ELSEVIER SCIENCE INC
DOI
URL
Rok publikacji
2017
Numer zeszytu
Strony od-do
123-131
Numer tomu
198
Identyfikator DOI
Liczba arkuszy
Autorzy
(liczba autorów: 2)
Pozostali autorzy
+ 1
Autorzy przekładu
(liczba autorów przekładu: 0)
Słowa kluczowe
en
Trace elements;
Bulk deposition;
Emission sources;
Rainwater;
Seasonal variation
Streszczenia
Język
en
Treść
This paper includes the results of chemical composition of bulk deposition samples collected simultaneously at urban (Poznan city) and forest (Jeziory) sites in central Poland, between April 2013 and October 2014. Rainwater samples were analyzed for trace elements (As, Zn, Ni, Pb, Cu, Cr, Cd) and physicochemical parameters. Overall, three metals, i.e. Zn, Pb and Cu were the most abundant anthropogenic constituents of rainwater samples from both locations. In Poznan city, the rainwater concentrations of trace elements did not differ significantly between spring and summer. However, they were elevated and more variable during the cold season (fall and winter), suggesting strong contribution from local high-temperature processes related to coal combustion (commercial and residential sector). In contrast to the urban site, relatively low variability in concentrations was found for Cu, Ni, Zn at the forest site, where direct impact of emission from vehicle traffic and coal-fired combustion (power plants) was much lower. The bulk deposition fluxes of Ni, As, Pb and Zn at this site exhibited a clear trend, with higher values during the cold season (fall and winter) than in spring and summer. At the urban site, the sums of total bulk deposition fluxes of Zn, Cu, Pb, Ni, As, Cr, Cd were as follows: 8460.4, 4209.2, 2247.4, 1882.1, 606.6, 281.6 and 31.4 lig m(-2). In addition, during the winter season, a significantly higher deposition fluxes of Cu and Zn were observed for rain (on average 103.8 and 129.4 mu g m(-2), respectively) as compared to snow (19.7 mu g Cu m(-2) and 54.1 pg Zn m(-2)). This suggests that different deposition pattern of trace elements for rain, mixed and snow was probably the effect of several factors: precipitation type, changes in emission and favorable meteorological situation during rain events.
Inne
System-identifier
PX-5afe9e2bd5de1796ee12fe5d
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