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Wyszukujesz frazę "contamination" wg kryterium: Temat


Tytuł:
Heavy Metal Emissions from Linear Sources and Polluted Soil in The Capital City of Poland
Autorzy:
Dmochowska, Anna
Majder-Lopatka, Małgorzata
Salamonowicz, Zdzisław
Piechota-Polanczyk, Aleksandra
Polanczyk, Andrzej
Tematy:
soil degradation
heavy metals contamination
zinc
lead contamination
nickel contamination
Pokaż więcej
Wydawca:
Politechnika Koszalińska. Wydawnictwo Uczelniane
Powiązania:
https://bibliotekanauki.pl/articles/2069925.pdf  Link otwiera się w nowym oknie
Opis:
Human activities such as transport contribute to the environmental degradation. Therefore, the aim of the study was to determine the level of contamination of soils, from different districts of big cities of central Europe, with heavy metals: zinc, lead, and nickel. The samples were taken from the top, sodded soil layer. Each single sample weigh was about 1 kg taken from 1 m2 measuring station. Soil samples were dried at room temperature. The airborne dry soil was thoroughly mixed and sieved through a 1 mm nylon sieve. The study included analysis of which type of metals is washed out under the influence of abiotic factors (bioavailable forms) and demonstrating how spatial development affects the accumulation of selected heavy metals in the soil. The results indicated that heavy metals emitted to the ground layer of the atmosphere accumulate in the immediate vicinity of communication routes. Moreover, based on the analysis of interrelationships of zinc, lead, and nickel concentrations, it has been shown that there is a common source of their emission to soil. Furthermore, the thesis that the concentration of metals was dependent on the soil reaction was not confirmed.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of leaf and soil contaminations on heavy metals content in spring wheat crops
Autorzy:
Weber, R.
Hryńczuk, B.
Tematy:
heavy metals
leaf contamination
soil contamination
spring wheat
Pokaż więcej
Wydawca:
Instytut Chemii i Techniki Jądrowej
Powiązania:
https://bibliotekanauki.pl/articles/146149.pdf  Link otwiera się w nowym oknie
Opis:
Glasshouse experiments were carried out in Wagner pots containing 6 kg of soil. The amounts were compared of Zn, Pb and Cd taken up by the crop of spring wheat from contamination introduced into the soil or upon leaves. The heavy metals were labelled with the radioactive isotopes 65Zn, 210Pb and 115Cd. The experiment was performed as a series of independent analyses in four replications. The dynamics of the labelled heavy metals translocation from contaminations sprayed on the upper or bottom side of the flag leaf was also tested. The highest concentration of 65Zn was found in the straw and grain of wheat. Much higher amounts of the metals appeared to have been taken up by the plants from leaf contamination than from the soil. The highest dynamics of translocation from leaves to other vegetative and generative organs of plants was that of zinc.
Dostawca treści:
Biblioteka Nauki
Artykuł
Artykuł
Tytuł:
The contamination of the environment with Toxocara eggs Mazowieckie Voivodship as a risk of toxocarosis in children
Autorzy:
Gawor, J.
Borecka, A.
Tematy:
toxocariasis
risk
child
environment contamination
Mazovian voivodship
Toxocara
egg
soil contamination
Pokaż więcej
Wydawca:
Polskie Towarzystwo Parazytologiczne
Powiązania:
https://bibliotekanauki.pl/articles/2147331.pdf  Link otwiera się w nowym oknie
Opis:
The home surroundings (109 places) of 120 children with diagnosed toxocarosis were examined to assess if the presence of 7Toxocara spp. eggs in the soil corresponds with the occurrence of clinical cases. 31 places (28.4%) were found to be contaminated. The highest level of soil contamination was revealed in rural and suburban regions (15.6% and 11.9%, respectively), while in urban areas it was 0.9%. These results confirmed that soil contamination might be recognized as a very important factor in the epidemiology of human toxocarosis.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Microbial contamination of laying hen litter in relation to bird age
Bakteriologiczne zanieczyszczenie pomiotu kur niosek w zależności od ich wieku
Autorzy:
Jóźwik, M
Trawińska, B.
Danek-Majewska, A.
Tematy:
microbial contamination
laying hen
hen litter
animal age
bird
poultry farm
animal production
qualitative contamination
quantitative contamination
litter
Pokaż więcej
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Powiązania:
https://bibliotekanauki.pl/articles/2197179.pdf  Link otwiera się w nowym oknie
Dostawca treści:
Biblioteka Nauki
Artykuł

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