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Modelling the light absorption properties of particulate matter forming organic particles suspended in seawater. Part 2. Modelling results

100%

Wozniak B., Wozniak S. B., Tyszka K., Ostrowska M., Majchrowski R., Ficek D., Dera J.

Oceanologia

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2005

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tom 47

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nr 4

2

Humic substances in the Baltic sediments. I. Isolation and preliminary characterization of humic substances

86%

Bojanowski R., Pempkowiak J., Kupryszewski G.

Oceanologia

|

1977

|

tom 07

3

Influence of pH and organic substances on the zinc and cadmium binding by the polynuclear Al13

86%

Badora A.

Zeszyty Problemowe Postępów Nauk Rolniczych

|

1998

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tom 456

The aim of the present study was to determine the influence of the reaction and organic substance on the effectiveness of zinc and cadmium binding by Al₁₃ The presence of organic substance in the combinations with Al₁₃ and toxic elements did not block the binding Al₁₃ activity. However, its type and amount influenced the effects of cadmium and zinc immobilisation and mobilisation. Cadmium in the solution was antagonistically related to zinc and other microelements in the plant which was confirmed in the mineral composition and presentation of the studied plants.

4

Preliminary results on low molecular weight organic substances dissolved in the waters of the Gulf of Gdańsk

86%

Grzybowski W., Pempkowiak J.

Oceanologia

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2003

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tom 45

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nr 4

The content of low molecular weight LMW (<1000 Da) dissolved organic substances was determined by ultrafiltration (concentration factor of 2) in different water samples collected in the Gulf of Gdańsk. The proportion of this fraction (based on organic carbon concentration) ranged from 24 to 57%. The lowest percentage was detected in riverine samples. The DOC concentrations in ultrafiltrates was similar in all the samples analysed. The absorbance proportion (at 250 nm) due to the low molecular fraction in the overall absorbance ranged from 14 to 45% and in all but one sample was lower than the DOC percentage. There was no relationship between DOC and absorbance in the LMW fractions (r2 = 0.08), in contrast to the characteristics of the ‘bulk’ samples (r2 = 0.88).

5

The effect of temperature and organic substances on the survival of Escherichia coli and Streptococcus faecalis in lake water

86%

Zmyslowska M.

Polish Journal of Environmental Studies

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1993

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tom 02

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nr 2

Studies have shown that the bacteria strains Eschericha coli and Streptococcus faecalis survive 2 to 8 days longer at 4°C than at 20°C in the same lake water samples. An addition of glucose to lake water increased survival of these bacteria strains by 2 to 4 days. An addition of peptone was even more effective. Survival of E. coli increased by 5-15 days, and of Str. faecalis by 11-19 days. It was also found that E. coli showed longer survival than Str. faecalis in water samples with no organic additives and those containing glucose. In the case of water samples with peptone, survival of the two strains did not differ.

6

Use of a planarian Dugesia tigrina Girard in the studies of acute toxicity of organic substances

86%

Piontek M.

Polskie Archiwum Hydrobiologii

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1999

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tom 46

|

nr 3-4

7

The role of the organic substance in the formation of communities of microorganisms

86%

Pieta D., Pastucha A., Patkowska E.

Annals of Agricultural Sciences. Series E: Plant Protection

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1999

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tom 28

|

nr 1-2

8

Diagnostic spodic horizons in podzols of the Sudety Mountains

86%

Kabala C.

Polish Journal of Soil Science

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2006

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tom 39

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nr 2

Bh horizons of Podzols formed from regoliths of sandstones, granites and gneisses in the Sudety Mountains are dark in colour, rich in organic substance, strongly acidic and slightly saturated with basic cations. They are also significantly enriched with organic and amorphous compounds of iron and aluminium. They meet all the morphological and physicochemical requirements of illuvial spodichorizons. Despite the evidence of lithological stratification of slope covers and possible polygenesis of B horizons, it is justifiable to classify these soils as Podzols, as adequately describing their morphology, basic properties and tendencies for present development.

9

Biochemical properties of soil contaminated by petrol

72%

Wyszkowska J., Kucharski J.

Polish Journal of Environmental Studies

|

2000

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tom 09

|

nr 6

479-485

In this experiment the effects of lead and lead-free petrol applied at the following doses of: 0, 2, 4 and 6 cm(3) . kg(-1) of soil on growth and development of triticale and biochemical properties of the soil were studied. For detoxication of petrol organic amendment with barley straw was applied. The experiment was performed in two experimental series with and without triticale cover. It was found that soil contamination by petrol adversely affected growth and development of tested crops. Barley straw appeared to be ineffective in detoxication of the contaminated soil. Lead and lead-free petrol (irrespective of plant cover and application of straw) adversely affected activity of soil dehydrogenases and urease. Straw application and growing of triticale positively affected biochemical properties of the soil. These positive effects were diminished by petrol, irrespective of the lead addition. Biochemical index of soil fertility calculated on the basis of enzymatic activity and carbon content was negatively correlated with the level of soil contamination by petrol and positively with triticale yield.

10

Znaczenie resztek pożniwnych w płodozmianie

72%

Malicki L.

Acta Academiae Agriculturae ac Technicae Olstenensis. Agricultura

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1997

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tom 64

57-66

Analiza wyników licznych badań, głównie przeprowadzonych w ośrodku lubelskim, nad masą, strukturą i składem chemicznym resztek pożniwnych ważniejszych roślin uprawianych w różnych warunkach edaficznych doprowadziła do wniosku, że stanowią one podstawową pozycje bilansu substancji organicznej gleby, umożliwiającą utrzymanie jej potencjału bioenergetycznego na właściwym poziomie. W razie niskiego nawożenia mineralnego, makro- i mikroelementy zawarte w resztkach są ważnym elementem bilansu składników pokarmowych gleby i roślin. Z tych względów oraz z powodu spełniania przez resztki innych funkcji, trzeba je traktować na równi z pozostałymi czynnikami zmianowania roślin.

11

The input of organic matter to the Baltic from the Vistula River

72%

Pempkowiak J., Kopryszewski G.

Oceanologia

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1980

|

tom 12

12

Influence of filling in an SBR reactor on the treatment of leachate from municipal landfills

72%

Koc-Jurczyk J., Jurczyk L.

Journal of Elementology

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2007

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tom 12

|

nr 4

317-325

The aim of the present study was to determine the influence of solid filling on the effectiveness of removal of organic substances (as COD) and ammonium from leachate from municipal landfills in SBR and SBBR reactors. The reactors worked on a laboratory scale reactors working under aerobic conditions at constant hydraulic retention time (HRT) of 3 d.COD values in outflow were similar: on average 635 mg O2·dm-3 (SBR) and 646 mg O2·dm-3 (SBBR). Regardless of the presence or absence of filling, nitrate dominated in the effluent. The average concentration was 693 mg NNQ3·dm3·h-1 in SBR and 699 mg NNQ3·dm3 in SBBR. The concentrations of ammonium and nitrite were low, less than 2.9 mg NNH4·dm-3 and 0.5 mg NNO2·dm-3 (SBR), and 3.2 mg NNH4·dm-3 and 0.3 mg NNO2·dm-3 (SBBR). The results indicate that the presence of solid filling did not influence the effectiveness of nitrification in activated sludge.

13

Occurrence of metalorganic complexes in water of the Baltic Sea

72%

Pempkowiak J.

Oceanologia

|

1983

|

tom 16

14

Effect of organic substance in the substrate on the content of cadmium in the edible parts of vegetable crops

72%

Tyksinski W., Bres W., Bosiacki M.

Roczniki Akademii Rolniczej w Poznaniu. Ogrodnictwo

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2002

|

tom 35

15

Dependence between the type and level of organic substance in the substrate and the amounts of cadmium and lead originating from different extraction solvents

72%

Tyksinski W., Bosiacki M., Kurdubska J.

Roczniki Akademii Rolniczej w Poznaniu. Ogrodnictwo

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2000

|

tom 32

16

Modelling the light absorption properties of particulate matter forming organic particles suspended in seawater. Part 1. Model description, classification of organic particles, and example spectra of the light absorption coefficient and the imaginary part of the refractive index of particulate matter for phytoplankton cells and phytoplankton-like particles

72%

Wozniak B., Wozniak S. B., Tyszka K., Dera J.

Oceanologia

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2005

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tom 47

|

nr 2

17

The leachate influence on nutrients and organics removal efficiency, structure and composition of the microfauna in activated sludge treating municipal wastewater

72%

Kulikowska D., Klimiuk E., Drzewicki A.

Archiwum Ochrony Środowiska

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2005

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tom 31

|

nr 1

18

Correlation between number of microbes and degree of soil contamination by petrol

72%

Wyszkowska J., Kucharski J.

Polish Journal of Environmental Studies

|

2001

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tom 10

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nr 3

The aim of this research was to examine the correlation between the presence of microbes in soil and the degree of soil pollution with unleaded and 98 leaded petrol. Detoxication of soils contaminated by refinery products was performed using barley straw. The experiment was conducted in two series: on unsown soil and on soil sown with triticale. The results of the study have proved that contamination of soil by petroleum compounds stimulates the growth of Azotobacter sp., copiotrophic and oligotrophic bacteria, but inhibits the multiplication of fungi and actinomycetes. Fertilisation of soil with barley straw and cultivation of triticale improved microbiological properties of soil. The favourable effect of the treatments was attenuated by leaded and unleaded petrol.

19

The role of bacteria growing on the root system of the common reed [Phragmites australis [Cav.] Trin. ex Steudel] in the metabolism of organic compounds

72%

Lalke-Porczyk E., Donderski W.

Polish Journal of Environmental Studies

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2005

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tom 14

|

nr 1

Some physiological properties and a number of heterotrophic bacteria inhabiting the surface of the root system of the common reed (Phragmites australis [Cav.] Trin. ex Steudel) were studied in two different types of bottom sediments (sandy and silty), and the bacteria were identified. For comparative purposes, samples of the bottom sediments from the sites where the reed grew were subjected to microbiological tests. It was found that the number of bacteria growing on the root system of the common reed and those inhabiting the types of bottom sediments tested increased from spring to summer and then decreased in autumn. On the surface of the rhizomes of the reed growing in silty sediments, a higher number of bacteria was always noted than on the surface of rhizomes growing in sandy sediments. Also, the number of heterotrophic bacteria in samples of bottom sediments was always higher in silty sediments than in sandy sediments. Lipo-, proteo- and amylolytic bacteria and bacteria capable of producing ammonia from organic compounds were dominant among all the isolated strains. The lowest numbers were found of chitinolytic bacteria and those that form hydrogen sulphide from organic compounds. Strains isolated in spring - both from the root system of the plant and from the samples of sediments - were potentially the most active physiologically. As a result of the identification of the isolated bacterial strains, it was found that bacteria from the Arthrobacter-Corynebacterium group and the Achromobacter genus are dominant in the root system of the common reed and in sandy and silty sediments.

20

Catabolic activity of Desulfotomaculum ruminis bacteria in media containing amino acids

72%

Szymanska K., Rydzewska A., Domka F.

Polish Journal of Environmental Studies

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2002

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tom 11

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nr 5

The influence of the presence of certain amino acids at different concentrations on the catabolic activity of the bacteria Desulfotomaculum ruminis was studied. Introduction of amino acids of the simple chain molecule in concentrations up to 10 g/dm3 in the Starkey media leads to a small decrease of the sulphate conversion degree. A more significant decrease in the reaction rate is observed for amino acids with branched side chains such as valine. Moreover, it was shown that except for the D-asparagine isomer, which is not assimilable by the bacteria Desulfotomaculum ruminis, the other amino acids are a source of assimilable nitrogen. Serine meets the demands of the minimum substrates and is a source of assimilable carbon and nitrogen in the process of bacteria proliferation.

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