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Wyświetlanie 1-6 z 6
Tytuł:
Soil profile as a natural membrane for heavy metals from wastewater
Autorzy:
Wlodarczyk, T.
Witkowska-Walczak, B.
Majewska, U.
Powiązania:
https://bibliotekanauki.pl/articles/24215.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
soil profile
natural membrane
heavy metal
waste water
zinc
cadmium
irrigation
soil solution
zinc concentration
cadmium concentration
industrial waste water
toxicity
Opis:
The effect of intensive irrigation with wastewater on the zinc (Zn) and cadmium (Cd) concentration in soil solution was investigated. The experiment was parallel conducted on two soil profiles. The soil microcosms were watered with purified wastewater and purified wastewater with an the addition of zinc and cadmium. The results indicate clearly that neither intensive overhead irrigation of the soil nor its flooding with these wastewater and exceeded sorptive capacity. The application of treated wastewater and wastewater with heavy metals addition did not appear to pose a threat to the natural environment. In all the cases under analysis, zinc and cadmium concentrations in the soil solution were several-fold lower than the permissible levels.
Źródło:
International Agrophysics; 2012, 26, 1
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Tolerance of environmental bacteria to heavy metals
Tolerancja bakterii środowiskowych na metale ciężkie
Autorzy:
Stachurska, X.
Środa, B.
Dubrowska, K.
Jabłońska, J.
Roszak, M.
Karakulska, J.
Powiązania:
https://bibliotekanauki.pl/articles/2620262.pdf
Data publikacji:
2020
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
microorganism
bioremediation
autochthonous bacteria
soil
heavy metal
toxicity
copper sulphate
cadmium sulphate
lead nitrate
Źródło:
Acta Scientiarum Polonorum. Zootechnica; 2020, 19, 2; 63-73
1644-0714
Pojawia się w:
Acta Scientiarum Polonorum. Zootechnica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Growth characteristics of ornamental Judas tree (Cercis siliquastrum L.) seedlings under different concentrations of lead and cadmium in irrigation water
Autorzy:
Hatamian, M.
Nejad, R.
Kafi, M.
Souri, M.K.
Shahbazi, K.
Powiązania:
https://bibliotekanauki.pl/articles/12298632.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Tematy:
plant cultivation
Judas tree
Cercis siliquastrum
ornamental plant
growth characteristics
tree seedling
irrigation water
waste water application
lead concentration
cadmium concentration
heavy metal
toxicity
Opis:
Landscape plantations are significantly water demanding in many parts of the world, particularly in dry regions. Adequate water supply is the main limiting factor behind landscape development, maintenance and beauty in such environments. On the other hand, monitoring the growth response of ornamental and landscape plants to irrigation water containing heavy metals can be useful in management and application of municipal wastewaters to these plantations instead of application in edible vegetable crops production, which is common in many urban areas. In the present study, one year old seedlings of Judas tree (Cercis siliquastrum) were irrigated for two years with water containing 0, 15 or 30 mg L–1 of lead (Pb) in absence or presence of cadmium (0 or 5 mg L–1) in a factorial design, and under greenhouse conditions. Heavy metal treatments had no significant effect on leaf SPAD value; however, plants treated with Pb15Cd0 combination had significantly higher SPAD value than Pb30Cd5 combination that showed the lowest leaf SPAD value. Increasing the lead and cadmium levels of irrigation water increased the number of chlorotic and necrotic leaves of plant than control, whereas it reduced the average leaf area and new shoot growth. The control plants or plants treated with lower level of heavy metals showed the highest leaf area and new shoot growth. Leaf photosynthesis rate was significantly reduced in all heavy metal treated plants than control plants, as the lowest amount was in Pb30Cd5 combination treatment. All heavy metal treatments showed higher leaf soluble carbohydrates and proline content than in control plants. Leaf soluble carbohydrates were highest in Pb30Cd0 and Pb30Cd5 treatments, and leaf proline was highest in Pb30Cd5 and Pb15Cd5 treatments. The results indicate that Judas tree is a relatively tolerant species to high concentrations of Pb and Cd in root medium added through the irrigation water, and long term dual application of these heavy metals can have additive harmful effects on plant growth.
Źródło:
Acta Scientiarum Polonorum. Hortorum Cultus; 2019, 18, 2; 87-96
1644-0692
Pojawia się w:
Acta Scientiarum Polonorum. Hortorum Cultus
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Heavy metals in some peat soils of Middle Pomerania
Metale ciężkie w glebach torfowych Pomorza Środkowego
Autorzy:
Trojanowski, J.
Trojanowska, C.
Janczak, C.
Antonowicz, J.
Bruski, J.
Powiązania:
https://bibliotekanauki.pl/articles/85051.pdf
Data publikacji:
2000
Wydawca:
Akademia Pomorska w Słupsku
Tematy:
heavy metal
peat soil
Middle Pomerania region
Pomeranian region
cadmium
zinc
manganese
environment pollution
soil forming process
pollution index
trace element sorption
toxicity degree
lead
mercury
copper
Opis:
The content of heavy metals in peat soils of north part of Słupsk Region was low. Enrichment factors for Cd, Zn and Mn indicates on their anthropogenic origin in studied peat soils, and for Cr and Ni - natural origin. However copper may be of anthropogenic or natural origin depending on location. The farther from sea peat soils are situated the higher concentration of those metals is.
W pracy analizowano zawartość niektórych metali cieżkich (Cu, Zn, Cd, Mn, Cr, Ni) w glebach torfowych Ziemi Słupskiej (Środkowe Pomorze). Koncentracja tych metali w badanych glebach jest niewielka, niemniej jednak wyznaczone współczynniki wzbogacenia wskazują, że Cd, Zn i Mn są pochodzenia antropogenicznego, natomiast Cr i Ni - pochodzenia naturalnego. Pochodzenie miedzi było zależne od lokalizacji gleb torfowych. Im dalej od morza były usytuowane badane gleby, tym więcej zawierały analizowanych metali.
Źródło:
Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline; 2000, 04
1643-0115
Pojawia się w:
Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zawartosc rteci we wlosach mieszkancow Warszawy narazonych i nienarazonych zawodowo
Autorzy:
Wiadrowska, B
Ludwicki, J.K.
Powiązania:
https://bibliotekanauki.pl/articles/871955.pdf
Data publikacji:
1993
Wydawca:
Narodowy Instytut Zdrowia Publicznego. Państwowy Zakład Higieny
Tematy:
zagrozenia zdrowia
olow
zdrowie czlowieka
rtec
skazenia srodowiska
metale ciezkie
kadm
choroby zawodowe
toksycznosc
health hazard
lead
human health
mercury
environment contamination
heavy metal
cadmium
occupational disease
toxicity
Opis:
Określono stopień narażenia na rtęć ludzi zamieszkałych na terenie Warszawy i okolic na podstawie oznaczeń tego pierwiastka we włosach osobników nienarażonych oraz narażonych zawodowo. Oznaczenia wykonywano metodą spektrofotometrii atomowo-absorpcyjnej.
The concentrations of mercury in the hair of workers employed in the fluorescent tubes plant in Warsaw were determined and compared with the results obtained in our previous studies in the years 1970/1980. Total mercury in the hair was analysed by means of flameless atomic absorption spectrometry. The average mercury concentrations in the non-exposed population was at a similar level (0.17 µg/g) as in the results obtained in 1970/80. The average concentrations of total mercury in the hair of exposed subjects were approximately 30 times lower than in the years 1970/80 and ranged from 0.38 to 1.42 µg/g. This substantial reduction in Hg concentration in the hair of exposed people was due to improvements in the technological process.
Źródło:
Roczniki Państwowego Zakładu Higieny; 1993, 44, 4; 361-365
0035-7715
Pojawia się w:
Roczniki Państwowego Zakładu Higieny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Poziom zanieczyszczenia metalami niektorych grzybow jadalnych dziko rosnacych
Autorzy:
Statkiewicz, U
Gayny, B.
Powiązania:
https://bibliotekanauki.pl/articles/871316.pdf
Data publikacji:
1994
Wydawca:
Narodowy Instytut Zdrowia Publicznego. Państwowy Zakład Higieny
Tematy:
zagrozenia zdrowia
skazenia srodowiska
zywnosc
kadm
grzyby jadalne
olow
rtec
runo lesne
metale ciezkie
arsen
cynk
toksykologia zywnosci
miedz
toksycznosc
health hazard
environment contaminant
food
cadmium
edible mushroom
lead
mercury
forest cover
heavy metal
arsenic
zinc
food toxicology
copper
toxicity
Opis:
Oznaczono Cd, Hg, Pb, Cu i Zn w próbkach grzybów jadalnych dziko rosnących pozyskanych w latach 1990-91 z sześciu rejonów Polski.
The amount of lead, cadmium, copper, zinc and mercury has been determined by atomic absorption spectroscopy in 96 samples of edible mushrooms, growing wild fresh edible fungus and dried (Boletus scaber, ceps) mushrooms, acquired from 6 regions in Poland: zielonogórskie, toruńskie, ostrołęckie, radomskie, warszawskie and lubelskie in 1990 and 1991. The level was found to be higher than that allowed by the polish standard PN-89/A-78510 Mushroom Processed Foods. Dried mushrooms and other legal acts eg. Instruction of the Ministry of Health § Social Welfare of 12th November 1990, the content of zinc in dried mushrooms (all samples) and in fresh edible fungus from the zielonogórski and toruński region. The content of copper in fresh edible fungus did not usually correspond with the requirements, whereas in the dried mushrooms (Boletus scaber, ceps) it exceeded the level only insignificantly in individual samples (average from studied regions was found to be within limits). The content of lead in dried mushrooms complied with the requirements of the standard, except for samples of ceps from zielonogórski region, where it insignificantly exceeded the allowed level of 2.0 mg/kg. The average content of zinc and copper in dried mushrooms did not exceed the allowed levels. The levels of mercury determined in the studied samples do not cause any excitement in light of the FAO/WHO agreements. A high level of contamination with cadmium was noted in all studied samples, being 2.5 times higher in edible fungus, 6-8 times higher in Boletus scaber and 19-23 times higher in dried ceps. This fact requires attention of sanitary services, although it should be stated that mushrooms are not the basic nutritional group, and thus their participation in the overall intake of metals in consummated foods is insignificant.
Źródło:
Roczniki Państwowego Zakładu Higieny; 1994, 45, 1-2; 27-35
0035-7715
Pojawia się w:
Roczniki Państwowego Zakładu Higieny
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-6 z 6

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