Mercury fractionation in sediments of the Lower Vistula River (Poland)

2007 ◽  
Vol 36 (3) ◽  
Author(s):  
Leonard Boszke ◽  
Artur Kowalski
Keyword(s):  
Baltic Sea ◽  
Catchment Area ◽  
Total Mercury ◽  
The Baltic Sea ◽  
Vistula River ◽  
Mercury Fractionation ◽  
Flow Through ◽  
The Mean ◽  
The Baltic ◽  
Mean Concentration

Mercury fractionation in sediments of the Lower Vistula River (Poland)The Vistula is the second largest river in the Baltic Sea catchment area and provides one of the main inputs to the Baltic. The river and its tributaries flow through some of the major industrialized and urbanised regions of Poland, making it one of the most highly human-impacted rivers in Europe. Although the river status is monitored routinely, little is known about mercury forms in the sediments. This study examines mercury fractionation in the sediments of the lower part of the Vistula River. The results show that the cities along this stretch of river have a relatively low impact on both the mercury forms found in the sediment and its bioavailability in the floodplain soils. The mean concentration of total mercury in the sediments was 65 ± 14 ng g

The inflow of 238Pu and 239+240Pu from the Vistula River catchment area to the Baltic Sea

2011 ◽  
Vol 102 (8) ◽  
pp. 728-734 ◽  
Author(s):  
Bogdan Skwarzec ◽  
Anna Jahnz-Bielawska ◽  
Dagmara I. Strumińska-Parulska
Keyword(s):  
Baltic Sea ◽  
Catchment Area ◽  
The Baltic Sea ◽  
River Catchment ◽  
Vistula River ◽  
The Baltic

The inflow of uranium 234U and 238U from the Vistula River catchment area to the Baltic Sea

2010 ◽  
Vol 98 (6) ◽  
Author(s):  
Bogdan Skwarzec ◽  
Annna Jahnz-Bielawska ◽  
Alicja Borylo
Keyword(s):  
Baltic Sea ◽  
Catchment Area ◽  
The Baltic Sea ◽  
River Catchment ◽  
Vistula River ◽  
The Baltic ◽  
Uranium 234U And 238U

AbstractIn the study, the activities of uranium

The present condition of the Vistula river catchment area and its impact on the Baltic Sea coastal zone

2004 ◽  
Vol 5 (2-3) ◽  
pp. 97-110 ◽  
Author(s):  
B. Buszewski ◽  
T. Buszewska ◽  
A. Chmarzyński ◽  
T. Kowalkowski ◽  
J. Kowalska ◽  
...  
Keyword(s):  
Baltic Sea ◽  
Coastal Zone ◽  
Catchment Area ◽  
Present Condition ◽  
The Baltic Sea ◽  
River Catchment ◽  
Vistula River ◽  
The Baltic

scholarly journals Study on organic matter fractions in the surface micro layer in the Baltic Sea by spectrophotometric and spectrofluorometric methods

2017 ◽  
Author(s):  
Violetta Drozdowska ◽  
Iwona Wróbel ◽  
Piotr Markuszewski ◽  
Przemyslaw Makuch ◽  
Anna Raczkowska ◽  
...  
Keyword(s):  
Organic Matter ◽  
Baltic Sea ◽  
Subsurface Layer ◽  
Molecular Size ◽  
Surface Microlayer ◽  
The Baltic Sea ◽  
Vistula River ◽  
Meteorological Observations ◽  
Organic Matter Fractions ◽  
The Baltic

Abstract. The fluorescence and absorption measurements of the samples collected from a surface microlayer (SML) and a subsurface layer (SS), a depth of 1 m were studied during three research cruises in the Baltic Sea along with hydrophysical studies and meteorological observations. Several absorption (E2 : E3, S, SR) and fluorescence (fluorescence intensities at peaks: A, C, M, T, the ratio (M + T) / (A + C), HIX) indices of colored and fluorescent organic matter (CDOM and FDOM) helped to describe the changes in molecular size and weight as well as in composition of organic matter. The investigation allow to assess a decrease in the contribution of two terrestrial components (A and C) with increasing salinity (~ 1.64 % and ~ 1.89 % in SML and ~ 0.78 % and ~ 0.71 % in SS, respectively) and an increase of in-situ produced components (M and T) with salinity (~ 0.52 % and ~ 2.83 % in SML and ~ 0.98 % and ~ 1.87 % in SS, respectively). Hence, a component T reveals the biggest relative changes along the transect from the Vistula River outlet to Gdansk Deep, both in SML and SS, however an increase was higher in SML than in SS (~ 18.5 % and ~ 12.3 %, respectively). The ratio E2 : E3

CLOUDINESS IN THE POLISH COASTAL ZONE OF THE BALTIC SEA AND CONDITIONS FOR RECREATION

2017 ◽  
Vol 45 ◽  
pp. 51-63
Author(s):  
Czesław Koźmiński ◽  
Bożena Michalska
Keyword(s):  
Baltic Sea ◽  
Coastal Zone ◽  
Temporal Variations ◽  
The Baltic Sea ◽  
Summer Half ◽  
The Mean ◽  
Bioclimatic Conditions ◽  
The Baltic ◽  
Time Specific

Purpose. Determination of size, variability and gradient of cloudiness on the Polish coast of the Baltic sea during the summer half-year and identification of zones with variable suitability for recreation due to cloudiness. Method. The research is based on daily values of cloudiness in the warm half-year (April-September) recorded on a scale from 0 to 8 octants, obtained from six meteorological stations located on the Polish coast of the Baltic sea during the period 2000–2016. Methods of linear regression were used in the analysis of temporal variations of cumulative monthly deviations in cloudiness for consecutive years from the mean multiannual value. In terms of recreational suitability, days were categorised into four classes according to cloudiness. Three zones of varying conditions for recreation were identified. Results. The essential characteristic of cloudiness on the Polish coast of the Baltic sea is very high variability from one day to another and the resulting change in the value of solar radiation, which, consequently affects bioclimatic stimuli. Cumulative deviations of monthly cloudiness values from the mean multiannual value show a decrease in cloudiness in April, June and July, and an increase in the remaining months of the warm half-year. It is possible to distinguish three periods regarding increased frequency of clear and moderately clear weather lasting continuously for at least 3 and 5 days on the coastal zone in summer. The Polish coast of the Baltic sea is marked by three zones of varying conditions for recreation due to cloudiness in the summer – moderately favourable, favourable and very favourable. Research and conclusion limitations. Lack of access to time-specific results of cloudiness measurement. Practical implications. The results obtained in the course of this research may be used by individuals as well as the organizers of their stays, and for the purpose of characterisation of bioclimatic conditions of the coast. Originality. In view of the recent climatic changes recorded over the last 30 years, the present research demonstrates the current cloudiness level on the Polish coast of the Baltic sea. Type of research. Presentation of the results of empirical research.

Reduction of nutrient emission from Polish territory into the Baltic Sea (1988–2014) confronted with real environmental needs and international requirements

2018 ◽  
Vol 47 (2) ◽  
pp. 140-166 ◽  
Author(s):  
Marianna Pastuszak ◽  
Andreas C. Bryhn ◽  
Lars Håkanson ◽  
Per Stålnacke ◽  
Mariusz Zalewski ◽  
...  
Keyword(s):  
Baltic Sea ◽  
Ecological Status ◽  
Nutrient Concentrations ◽  
Reference Period ◽  
The Baltic Sea ◽  
Vistula River ◽  
Nutrient Emission ◽  
Helsinki Commission ◽  
Oder River ◽  
The Baltic

Abstract Eutrophication of the Baltic Sea is considered a major threat to its ecological status. We present and discuss Polish riverine flow normalized loads of total nitrogen (TN) and total phosphorus (TP) discharged into the Baltic Sea in (i)1988–2014, (ii) periods of maximum TN (1992–1994), TP (1988–1991) emission, (iii) the reference period (1997–2003) established by the Helsinki Commission (HELCOM), (iv) 2012–2014, last years of our study. Despite considerable nutrient load reductions prior to the HELCOM reference period, Poland is expected to reduce TN and TP loads by 30% and 66%, respectively. In the light of our historical and up-to-date findings defining ecological status of the Baltic Sea, we suggest that the proposed TP load reduction is overestimated and its realization may lead to (i) undesirable consequences for the Baltic ecosystem, (ii) would require a decline in TP concentrations to 0.067 mg P dm-3 (the Vistula River) and 0.083 mg P dm-3 (the Oder River), values reported for pre-industrial times. The current nutrient concentrations in the Vistula and Oder safely comply with the requirements of the Water Framework Directive. We also comment on the top-down and bottom-up effect resulting in quantitative and qualitative reorganization of the Baltic ecosystem, a phenomenon already observed in the Baltic Sea.

scholarly journals Digital methods for agro-monitoring and nutrient load management in the Russian part of the Baltic Sea catchment area

2020 ◽  
Vol 578 ◽  
pp. 012011
Author(s):  
Aleksandr Briukhanov ◽  
Alexey Dorokhov ◽  
Ekaterina Shalavina ◽  
Alexey Trifanov ◽  
Ekaterina Vorobyeva ◽  
...  
Keyword(s):  
Baltic Sea ◽  
Catchment Area ◽  
Load Management ◽  
Nutrient Load ◽  
The Baltic Sea ◽  
Russian Part ◽  
Digital Methods ◽  
The Baltic
Sign in / Sign up

Export Citation Format

Share Document