Wyniki wyszukiwania

1

Polychlorinated biphenyls in the sediments of the Odra River and its tributaries

100%

Rodziewicz M., Kaczmarczyk A., Niemirycz E.

Polish Journal of Environmental Studies

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2004

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tom 13

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nr 2

This paper presents the results of polychlorinated biphenyls (PCBs) determination in sediments from different sites of the Odra River and its tributaries, collected in 1998-2002. It was found that concentrations of PCBs varied significantly. The results of individual congeners show that contents of PCBs 180 and 138 were the highest in the sediments investigated. For better identification of places most polluted by PCBs, PCB contents on TOC (total organic carbon) basis in surface sediments are presented.

2

Loss-on-ignition as an estimate of total organic carbon in the mountain soils

86%

Bojko O., Kabala C.

Polish Journal of Soil Science

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2014

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tom 47

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nr 2

Due to the ease and low cost of implementation, a commonly used method of determining the humus content in soils is the loss-on-ignition (LOI) method. Several regression equations and transformation factors are reported for LOI conversion to soil organic matter (SOM) or total organic carbon (TOC) content. The vast majority of the conversion factors have been developed for surface horizons of lowland soils, while there are only few findings from the mountainous areas. 476 mineral and 79 organic (forest litter) samples from 31 soil profiles located in different altitude zones of the Karkonosze Mountains and under different vegetation were used for analysis. LOI was determined by the drying-weighing method and TOC by the dry combustion method with CO₂ absorption. The average LOI/TOC ratio was about 2, but varied in accordance to LOI value. At the LOI value above 8–10%, the LOI/TOC is maintained at a constant level of 2.0, but with a decreasing LOI it may significantly extend, up to 20 at LOI <1%. In the mountain soils, the best compatibility of TOC determined and estimated based on LOI was obtained when using different conversion factors ( 7.3, 5.0, 3.1 and 2.0) for the four LOI ranges (0–2, 2–4, 4–8, and > 8%, respectively) or when using separate regression equations for LOI of <8 and >8%. Because of huge TOC overestimation by LOI method at LOI values lower than 8–10%, the conversion LOI to TOC is not recommended, unless the direct measurement of TOC content is currently unavailable (e.g. in archival databases).1

3

The content of DOC, POC, and TOC in lobelian lakes

86%

Baralkiewicz D., Kraska M., Siepak J.

Polish Journal of Environmental Studies

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1996

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tom 05

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nr 6

The material for our study came from 44 lobelian lakes located near Bytów. The lakes differed in size, depth, and drainage area development. The objective of the study was to determine the content of TOC, DOC, and POC in these lakes using a high temperature method. COD was also measured using a dichromate method, and after that the results were expressed by the TOC values. Then the TOC values obtained via the two methods were compared. The lakes under investigation proved to contain different amounts of dissolved organic carbon (1.8-19.0 mg/1), with POC falling within the range 0-33% of TOC.

4

Leaching of individual PAHs in soil varies with the amounts of sewage sludge applied and total organic carbon content

86%

Oleszczuk P., Baran S.

Polish Journal of Environmental Studies

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2005

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tom 14

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nr 4

The aim of the work was the evaluation of the ability of individual PAHs from the US EPA list to migrate in relation to the sludge dose applied. On the basis of statistical analysis, an attempt was undertaken to evaluate the role of organic matter (total content of organic carbon) in the transportation of individual PAHs. Different doses of sewage sludge were introduced into the soil starting with a fertilizing dose (30 t·ha⁻¹), through melioration doses (75, 150, 300 t·ha⁻¹) to extreme doses (600 t·ha⁻¹). A few days after the application of sewage sludge, the increase of PAHs was noted in the 20-40 cm soil horizon. The range of increase depended on the sewage sludge dose applied. The highest increase in PAH content was observed in soil with a sludge dose of 300 t·ha⁻¹. However, after an 18-month period of study, the relationships observed before changed and the highest increase of individual PAHs in the 20-40 cm soil horizon relative to the control was noted in the case of the highest sludge dose.

5

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Monitoring of the groundwater environment within a landfill site

72%

Zlotoszewska-Niedzialek H.

Annals of Warsaw University of Life Sciences - SGGW. Land Reclamation

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2007

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nr 38

49-56

The paper presents the hydrogeological conditions and results of monitoring carried out within the “Otwock-Świerk” municipal landfi ll site. The object is located within the Garwolin Plain – a denuded moraine plateau composed of deposits representing Middle-Polish Glaciations. Wastes are isolated from the surrounding soil-water environment by a 1-ply complex mineral-synthetic diaphragm. The periodical increase of chlorides, total organic carbon (TOC), polycyclic aromatic hydrocarbons (PAH) and nitrites indicate the presence of pollutants of anthropogenic origin.

6

Distribution of macroinvertebrates in relation to the quantity and quality of organic matter in streams in the western Czech Republic

72%

Skala I.

International Journal of Ecohydrology and Hydrobiology

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2012

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tom 12

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nr 3

7

Characterization and biological treatability of edible oil wastewaters

72%

Aslan S., Alyuz B., Bozkurt Z., Bakaoglu M.

Polish Journal of Environmental Studies

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2009

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tom 18

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nr 4

533-538

This study investigates the conventional characterization and biological treatability of two different wastewaters that originated from corn oil and sunflower oil refining processes. Our aims for characterization of wastewaters included: total and soluble chemical oxygen demand, total and soluble biological oxygen demand, suspended solid, oil and grease, pH, total kjeldahl nitrogen, ammonia nitrogen, total phosphor, phosphate, color and sulfate analyses. In corn oil wastewaters, total COD is portioned as 80% soluble COD, 20% particular COD, 3.4% total soluble inert COD, 0.5% total particular inert COD, whereas in sunflower oil wastewaters soluble COD, particular COD, total soluble inert COD, total particular inert COD are found as 81.7%, 18.3%, 1.9%, and 5.1%, respectively. In our characterization studies, BOD5/COD ratio were 0.15 and 0.2 for corn oil and sunflower oil wastewaters, respectively. These results indicate that wastewaters are not suitable for biological treatment. But investigation of COD fractions has pointed out that wastewaters contain mostly biodegradable organic substances.

8

Investigation of appropriate conditions for wood wastes combustion on basis of emission

72%

Ladomersky J., Hroncova E., Samesova D.

Drewno. Prace Naukowe. Doniesienia. Komunikaty

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2003

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tom 46

|

nr 170

9

Diversity and vertical distribution of planktonic ciliates in a stratified mesotrophic lake: relationship to environmental conditions

72%

Mieczan T.

Oceanological and Hydrobiological Studies

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2008

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tom 37

|

nr 1

10

Variability of organic carbon in water and sediments of the Odra River and its tributaries

72%

Niemirycz E., Gozdek J., Koszka-Maron D.

Polish Journal of Environmental Studies

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2006

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tom 15

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nr 4

This paper presents the results of tests for total organic carbon (TOC) and dissolved organic carbon (DOC) in water and sediments of the Odra River and its tributaries, collected in 1998-2000. TOC and DOC concentrations in tested samples were determined using the multi N-C analyser made by Analytik Jena/Instrument Development Company (IDC). More than 40% of waters from the Odra River and its tributaries were characterized by increased organic substances concentration levels according to Polish and German regulations (10-20 mgC dm-3). TOC and DOC concentrations in water samples were in the range of 3.729.0 mgC dm-3 and 2.5-16.3 mgC dm-3, respectively, whereas TOC content in sediments varied between 1.4-176.0 mgC g-1 d.m. Particulate organic carbon (POC) constituted about 20% of TOC in the tributaries and 37% in close-to-mouth water of the Odra River. Based on the obtained results, the temperature influence on the content of organic carbon in water samples was observed. The maximum TOC values were characteristic for spring-summer period, while the minimum ones for the autumn.

11

Effect of long-term apple-tree cultivation and cultural practices in the orchard after replantation on the contents of indole-3-acetic acid and chemical compounds

58%

Styla K.

Electronic Journal of Polish Agricultural Universities. Series: Horticulture

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2014

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tom 17

|

nr 3

12

The hydrochemistry of peatland lakes as a result of the morphological characteristics of their basins

58%

Banas K.

Oceanological and Hydrobiological Studies

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2013

|

tom 42

|

nr 1

13

Ecohydrological determinants of seasonality and export of total organic carbon in Narew River with high peatland contribution (north-eastern Poland)

58%

Gorniak A.

International Journal of Ecohydrology and Hydrobiology

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2019

|

tom 19

|

nr 1

14

Total organic carbon as a new index for monitoring trophic states in lakes

58%

Dunalska J. A.

Oceanological and Hydrobiological Studies

|

2011

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tom 40

|

nr 2

15

Chara and Ceratophyllum as a substrate for ciliates in two shallow lakes (Leczna-Wlodawa Lakeland, Eastern Poland)

58%

Mieczan T.

Oceanological and Hydrobiological Studies

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2008

|

tom 37

|

nr Suppl.1

16

Wpływ płużnej uprawy roli i siewu bezpośredniego na zawartość w glebie materii organicznej ekstrahowanej metodami fizycznymi

58%

Lenart S., Perzanowska A.

Acta Agrophysica

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2013

|

tom 20

|

nr 4

Celem badań było określenie wpływu uprawy płużnej (UP) i siewu bezpośredniego (SB) na ogólną zawartość węgla organicznego (Corg) w glebie oraz na zawartość: a) lekkich frakcji węgla – particulate organic matter (POM) o średnicy cząstek 2-0,05 mm, b) zhumifikowanej frakcji węgla (HF) związanej z cząsteczkami pyłu i iłu (<0,05 mm). Podstawę badań stanowiło doświadczenie polowe założone w 1975 roku w RZD Chylice na czarnej ziemi o składzie granulometrycznym gliny piaszczystej/piasku gliniastego mocnego. Próby gleby pobrano w latach 2009-2010, wiosną (maj) i jesienią (październik), z głębokości 0-10 i 10-20 cm. Stosowanie siewu bezpośredniego przyczyniło się do znacznego zwiększenia zawartości w glebie Corg, zwłaszcza w warstwie 0-10 cm (o 33%). Udział frakcji POM w ogólnej zawartości Corg wynosił w warstwie gleby 0-10 cm 16,9% w warunkach siewu bezpośredniego oraz 13,1% w warunkach uprawy płużnej. Frakcja POM była bardziej podatna na zmiany pod wpływem badanych systemów uprawy gleby niż frakcja zhumifikowana (HF) i ogólna zawartość Corg w glebie.

17

Spatial and temporal variability of TOC concentrations in a shallow and eutrophicated lake ecosystem [Lake Jaroslawieckie, Wielkopolski National Park, Western Poland]

58%

Pelechaty M., Pelechata A., Niedzielski P.

Polish Journal of Environmental Studies

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2003

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tom 12

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nr 5

The aim of this study was to characterize the spatial and temporal variability of total organic carbon concentrations in a shallow, eutrophic lake (Lake Jarosławieckie, the Wielkopolski National Park, midwestern Poland) against the background of lake habitat heterogeneity. The interrelations between TOC and chlorophyll a in different studied sites (in macrophyte communities as well as in open water sections) were also taken into account. In November 2000, March, May, June and July 2001, water samples were collected in two transects along and across the lake traversing macrophyte communities of the phytolittoral zonation (7 sites) and reaching the open water zone (mid-lake, 3 sites) and, additionally, in a site close to a beach attracting local inhabitants and tourists. Statistical analyses revealed significant temporal differentiation and reverse patterns of changes of both TOC and chlorophyll a concentrations in the studied lake, whereas the spatial one was not significant. No correlations between both parameters were found. The results of cluster analyses suggest macrophyte vegetation and its seasonal changes in development as the main factor to influence TOC concentrations.

18

The effectiveness of the storm water treatment plant at Warsaw Frederick Chopin Airport

58%

Krzemieniewski M., Bialowiec A., Zielinski M.

Archiwum Ochrony Środowiska

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2006

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tom 32

|

nr 4

19

Transfer of organic matter in a lake included in the power plant cooling system [Wielkopolsko-Kujawskie Lake District, Poland]

51%

Dunalska J., Zdanowski B., Stawecki K., Marchlik W.

Electronic Journal of Polish Agricultural Universities. Series Environmental Development

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2005

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tom 08

|

nr 1

For assessment of the organic matter mobility rate, dissolved and particulate organic carbon were used. Quality of the organic matter was determined on the grounds of the relative indicator of aromatic properties (SUVA260) and the absorbance ratio at 260 nm (A260) and 330 nm (A330). The study has revealed that the dominant form of organic carbon is the dissolved form (DOC). The main source of organic matter is the autochthonous production, intensifying in spring, which is exhibited by the growth of the heterotrophic bacteria number and intensive phytoplankton bloom. Organic matter in the lake is transferred both spatially and vertically. The rate of these processes is determined by, respectively: forced water flow resulting from the cooling waters dump and sedimentation of organic matter on organic and inorganic suspensions, which is favoured by the carbonate-calcareous character of the Lake Mikorzyńskie waters. Organic matter adsorption to calcium carbonate and destruction running with the heterotrophic bacteria participation are one of the major factors limiting the heavy degradation of the lake waters.

Ograniczanie wyników

Polychlorinated biphenyls in the sediments of the Odra River and its tributaries

Loss-on-ignition as an estimate of total organic carbon in the mountain soils

The content of DOC, POC, and TOC in lobelian lakes

Leaching of individual PAHs in soil varies with the amounts of sewage sludge applied and total organic carbon content

Monitoring of the groundwater environment within a landfill site

Distribution of macroinvertebrates in relation to the quantity and quality of organic matter in streams in the western Czech Republic

Characterization and biological treatability of edible oil wastewaters

Investigation of appropriate conditions for wood wastes combustion on basis of emission

Diversity and vertical distribution of planktonic ciliates in a stratified mesotrophic lake: relationship to environmental conditions

Variability of organic carbon in water and sediments of the Odra River and its tributaries

Effect of long-term apple-tree cultivation and cultural practices in the orchard after replantation on the contents of indole-3-acetic acid and chemical compounds

The hydrochemistry of peatland lakes as a result of the morphological characteristics of their basins

Ecohydrological determinants of seasonality and export of total organic carbon in Narew River with high peatland contribution (north-eastern Poland)

Total organic carbon as a new index for monitoring trophic states in lakes

Chara and Ceratophyllum as a substrate for ciliates in two shallow lakes (Leczna-Wlodawa Lakeland, Eastern Poland)

Wpływ płużnej uprawy roli i siewu bezpośredniego na zawartość w glebie materii organicznej ekstrahowanej metodami fizycznymi

Spatial and temporal variability of TOC concentrations in a shallow and eutrophicated lake ecosystem [Lake Jaroslawieckie, Wielkopolski National Park, Western Poland]

The effectiveness of the storm water treatment plant at Warsaw Frederick Chopin Airport

Transfer of organic matter in a lake included in the power plant cooling system [Wielkopolsko-Kujawskie Lake District, Poland]