Seasonal variations of dissolved organic carbon in precipitation over urban and forest sites in central Poland

Spatial and temporal variability of carbon species in rainwater (bulk deposition) was studied for the first time at two sites located in urban area of Poznań City and protected woodland area (Jeziory), in central Poland, between April and December 2013. The mean concentration of total carbon (TC) fo...

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Bibliographic Details
Published in:Environmental science and pollution research international 2015-07, Vol.22 (14), p.11087-11096
Main Authors: Siudek, Patrycja, Frankowski, Marcin, Siepak, Jerzy
Format: Article
Language:English
Subjects:
Aerosols
Air masses
Air pollution
Anthropogenic factors
Aquatic Pollution
Atmospheric chemistry
Atmospheric Protection/Air Quality Control/Air Pollution
Carbon
Carbon - analysis
Carbon - chemistry
Cold season
Dissolved organic carbon
Earth and Environmental Science
Ecotoxicology
Environment
Environmental Chemistry
Environmental Health
Environmental Monitoring - methods
Environmental Pollutants - analysis
Environmental Pollutants - chemistry
Forests
High temperature
Organic Chemicals - analysis
Organic Chemicals - chemistry
Outdoor air quality
Poland
Polluted environments
Precipitation
Protected species
Rain
Rain - chemistry
Research Article
Seasonal variations
Seasons
Snow
Snow - chemistry
Urban areas
Urbanization
Waste Water Technology
Water Management
Water Pollution Control
Wet deposition
Woodlands
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Summary:Spatial and temporal variability of carbon species in rainwater (bulk deposition) was studied for the first time at two sites located in urban area of Poznań City and protected woodland area (Jeziory), in central Poland, between April and December 2013. The mean concentration of total carbon (TC) for the first site was 5.86 mg L −1 , whereas for the second, 5.21 mg L −1 . Dissolved organic carbon (DOC) concentration accounted for, on average, 87 and 91 % of total carbon in precipitation at urban and non-urban sites, respectively. Significant changes in TC concentrations in rainwater were observed at both sites, indicating that atmospheric transformation, transport, and removal mechanisms of carbonaceous particles were affected by seasonal fluctuations in biogenic/anthropogenic emission and meteorological conditions (i.e., precipitation height and type, atmospheric transport). During the warm season, the DOC concentration in rainwater was mostly influenced by mixed natural and anthropogenic sources. In contrast, during the cold season, the DOC concentration significantly increased mainly as a result of anthropogenic activities, i.e., intensive coal combustion, domestic wood burning, high-temperature processes, etc. In addition, during the winter measurements, significant differences in mean DOC concentration (Kruskal-Wallis test, p  
ISSN:0944-1344
1614-7499
DOI:10.1007/s11356-015-4356-3