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Wyszukujesz frazę "polluted area" wg kryterium: Wszystkie pola


Wyświetlanie 1-2 z 2
Tytuł:
Pine needles (Pinus sylvestris L.) as bioindicators in the assessment of urban environmental contamination with heavy metals
Autorzy:
Parzych, A.
Jonczak, J.
Powiązania:
https://bibliotekanauki.pl/articles/125081.pdf
Data publikacji:
2014
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
polluted area
soil
needles
pinus sylvestris
accumulation
enrichment factor
Opis:
The studies on Zn, Pb and Mn content in the needles of Pinus silvestris and the surface layers of soil (0.0–0.2 m and 0.4–0.6 m) were conducted in 2010. The research stations covered residential areas, municipal parks, neighborhoods of busy streets, industrial establishments, waste dump sites and sewage treatment plants. The tests showed variability of the analyzed elements in the needles of P.silvestris and in municipal soils, depending on concentration of urban and industrial activity, road traffic and the depth of the examined layer of soil. The content of heavy metals in soil varied. Zn was character-ized by the highest variability, depending on the depth (50.3–52.4%), Mn slightly lower (38.5–42.2%), and Pb, the lowest (29.1–33.2%). It was evidenced that the values of the heavy metals enrichment factors of the needles are closely connected with concentration of the examined metals in the soil. Along with the rise of Zn, Mn and Pb content in the soil, the values of enrichment factors decreased. The strongest negative correlations were found in the case of Zn, both in 1-year old needles (r = -0.82, p<0.05), as well as in 2-years’ old ones (r = -0.83, p<0.05), slightly weaker in the cases of lead and manganese.
Źródło:
Journal of Ecological Engineering; 2014, 15, 3; 29-38
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Distribution of Heavy Metals in Apple Tissues Grown in the Soils of Industrial Area
Autorzy:
Imeri, Resmije
Kullaj, Endrit
Millaku, Lulzim
Powiązania:
https://bibliotekanauki.pl/articles/124051.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
toxic metals
heavy metals
polluted soils
plant
soils
accumulation
distribution
health
Opis:
The exposure of heavy metals in the Drenas site – Kosovo has risen dramatically in the last 30 years because of mining and smelting activities. The study investigated the heavy metal in soil, accumulation in different parts of apple trees near the industrial sites of Drenas. The accumulation ratio values of heavy metals were calculated to assess the potential health risks. The mean concentrations of the heavy metals in the soil were in the following order of magnitude Ni > Zn > Fe > Cr > Cu > Pb > Cd > As, while that in the apples were in the order of magnitude Ni > Cr > Fe > Cu > Pb > Zn > Cd > As, in the leaves – Fe > Zn > Cu > Cr > Ni > Pb > Cd > As and in the shoots – Zn > Fe > Cu > Cr > Ni > Pb > Cd > As. Compared to control, the contents of analyzed metals from plant tissues of apple trees in the contaminated area were significantly higher (p<0.001). The concentration of Ni, Pb, Cr, Fe etc. in the apple tissue increased along with the heavy metal content in soils in the polluted area. The high accumulation ratio values for Pb (1.1), Cd (0.62), Cr (0.93) and Ni (0.46) were characteristic for the investigated species and indicate the accumulation ability.
Źródło:
Journal of Ecological Engineering; 2019, 20, 3; 57-66
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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