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1

Stale problemy z odpadami niebezpiecznymi

100%
Zdun A.
Ekopartner
|
2004
|
nr 08-09
32
2

Nowe zrodla pomocy na ochrone srodowiska i promocje zrownowazonego rozwoju

75%
Zdun A.
Ekopartner
|
2004
|
nr 11
8
3

Walory przyrodnicze, ochrona srodowiska i siec Natura 2000 w woj. pomorskim

75%
Zdun A.
Ekopartner
|
2005
|
nr 01
22-23
4

Czy Polska bedzie samochodowym smietnikiem Europy? cz.2.

63%
Zdun A.
Ekopartner
|
2005
|
nr 01
34
5

Plany gospodarki odpadami - kto zdazyl przed 30 czerwca? [cz.2]

63%
Zdun A.
Ekopartner
|
2004
|
nr 08-09
28-30
6
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Light absorption by phytoplankton in the Southern Baltic and Pomeranian lakes: mathematical expressions for remote sensing applications

51%
Meler J., Ostrowska M., Ficek D., Zdun A.
Oceanologia
|
2017
|
tom 59
|
nr 3
The absorption properties of phytoplankton in surface waters of the Baltic Sea and coastal lakes are examined in the context of their relationships with the concentration of the main photosynthetic pigment, chlorophyll a. The analysis covers 425 sets of spectra of light absorption coefficients aph(l) and chlorophyll a concentrations Chla measured in 2006—2009 in various waters of the Baltic Sea (open and coastal waters, the Gulf of Gdańsk and the Pomeranian Bay, river mouths and the Szczecin Lagoon), as well as in three lakes in Pomerania, Poland (Obłęskie, Łebsko and Chotkowskie). In these waters the specific (i.e. normalized with respect to Chla) light absorption coefficient of phytoplankton aph *(l) varies over wide ranges, which differ according to wavelength. For example, aph *(440) takes values from 0.014 to 0.124 mg1 m2, but aph *(675) from 0.008 to 0.067 mg1 m2, whereby Chla ranges from 0.8 to 120 mg m3. From this analysis a mathematical description has been produced of the specific light absorption coefficient of phytoplankton aph *(l), based on which the dynamics of its variability in these waters and the absorption spectra in the 400—700 nm interval can be reconstructed with a low level of uncertainty (arithmetic statistical error: 4.09—10.21%, systematic error: 29.63—51.37%). The relationships derived here are applicable in local remote sensing algorithms used for monitoring the Baltic Sea and coastal lakes and can substantially improve the accuracy of the remotely determined optical and biogeochemical characteristics of these waters.
7
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Seasonal variability in the optical properties of Baltic aerosols

51%
Zdun A., Rozwadowska A., Kratzer S.
Oceanologia
|
2011
|
tom 53
|
nr 1
8

Energetyka polska w Unii Europejskiej

50%
Zdun A.
Ekopartner
|
2004
|
nr 11
5
9

Czy Polska bedzie samochodowym smietnikiem Europy? cz.1

50%
Zdun A.
Ekopartner
|
2004
|
nr 12
30-31
10
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Inherent optical properties of suspended particulate matter in the Southern Baltic Sea

45%
Wozniak S. B., Meller J., Lednicka B., Zdun A., Ston-Egiert J.
Oceanologia
|
2011
|
tom 53
|
nr 3
The inherent optical properties (IOPs) of suspended particulate matter and their relations with the main biogeochemical characteristics of particles have been examined in the surface waters of the southern Baltic Sea. The empirical data were gathered at over 300 stations in open Baltic Sea waters as well as in the coastal waters of the Gulf of Gdańsk. The measurements included IOPs such as the absorption coefficient of particles, absorption coefficient of phytoplankton, scattering and backscattering coefficients of particles, as well as biogeochemical characteristics of suspended matter such as concentrations of suspended particulate matter (SPM), particulate organic matter (POM), particulate organic carbon (POC) and chlorophyll a (Chl a). Our data documented the very extensive variability in the study area of particle concentration measures and IOPs (up to two orders of magnitude). Although most of the particle populations encoun- tered were composed primarily of organic matter (av. POM/SPM=ca 0.8), the different particle concentration ratios suggest that the particle composition varied significantly. The relations between the optical properties and biogeochemical parameters of suspended matter were examined. We found significant variability in the constituent-specific IOPs (coefficients of variation (CVs) of at least 30% to 40%, usually more than 50%). Simple best-fit relations between any given IOP versus any constituent concentration parameter also highlighted the significant statistical errors involved. As a result, we conclude that for southern Baltic samples an easy yet precise quantification of particle IOPs in terms of the concentration of only one of the following parameters – SPM, POM, POC or Chl a – is not achievable. Nevertheless, we present a set of best statistical formulas for a rough estimate of certain seawater constituent concentrations based on relatively easily measurable values of seawater IOPs. These equations can be implemented in practice, but their application will inevitably entail effective statistical errors of estimation of the order of 50% or more.
11

Plany gospodarki odpadami - kto zdazyl przed 30 czerwca? [cz.1]

44%
Zdun A.
Ekopartner
|
2004
|
nr 07
5
12

AGD - nowe rozwiazania

44%
Zdun A.
Ekopartner
|
2004
|
nr 10
15
13

Detection of Coxiella burnetii and Francisella tularensis in tissues of wild-living animals and in ticks of north-west Poland

39%
Bielawska-Drozd A., Cieslik P., Zakowska D., Glowacka P., Wlizlo-Skowronek B., Zieba P., Zdun A.
Polish Journal of Microbiology
|
2018
|
tom 67
|
nr 4
This work presents results of the research on the occurrence of Coxiella burnetii and Francisella tularensis in the tissues of wild-living animals and ticks collected from Drawsko County, West Pomeranian Voivodeship. The real-time PCR testing for the pathogens comprised 928 samples of animal internal organs and 1551 ticks. The presence of C. burnetii was detected in 3% of wild-living animals and in 0.45–3.45% (dependent on collection areas) of ticks. The genetic sequences of F. tularensis were present in 0.49 % of ticks (only in one location – Drawa) and were not detected in animal tissues. The results indicate respectively low proportion of animals and ticks infected with C. burnetii and F. tularensis.
14

Nowe kierunki w przemysle utylizacyjnym

38%
Zdun A.
Ekopartner
|
2004
|
nr 08-09
32
15

Pelety - ekologiczne paliwo

26%
Zdun A.
Ekopartner
|
2004
|
nr 08-09
27
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