Wszystkie pola: environment pollutant - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Cadmium and nickel contents in Helianthus tuberosus L. tubers
Autorzy:: Sawicka, B
Powiązania:: https://bibliotekanauki.pl/articles/1448713.pdf
Data publikacji:: 2001
Wydawca:: Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:: Polska
environment pollution
soil
Helianthus tuberosus
cadmium
herbicide
soil property
degraded ecosystem
pollutant
anthropogenic ecosystem
nickel
heavy metal
Opis:: This study was based on tuber samples from the field experiment in 1996-1998 on weak loamy sand soil in a system of randomised sub-blocks. The experimental factors were: ways of nursery and varieties (Swojecka, Kulista Czerwona IHAR, Kulista Biała IHAR). Herbicide application elevated both cadmium and nickel contents in Helianthus tubers as compared to control. Tubers of Swojecka Czerwona cv. were characterised by the lowest accumulation of cadmium and nickel, those of Kulista Czerwona IHAR cv. by the highest content of nickel, and those of Kulista Biała IHAR by the highest level of cadmium.
Źródło:: Acta Agrophysica; 2001, 51; 275-283
1234-4125
Pojawia się w:: Acta Agrophysica
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Changes in the environmental impact of Polish agriculture after the accession to the European Union
Autorzy:: Kociszewski, K.
Powiązania:: https://bibliotekanauki.pl/articles/43994.pdf
Data publikacji:: 2018
Wydawca:: Uniwersytet Przyrodniczy w Poznaniu. Wydawnictwo Uczelniane
Tematy:: Polska
agriculture
European accession
European Union
environmental impact
change
pollutant emission
environment protection
Common Agricultural Policy
production intensification
livestock production
Źródło:: Journal of Agribusiness and Rural Development; 2018, 50, 4
1899-5241
Pojawia się w:: Journal of Agribusiness and Rural Development
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Assessment of air pollutants in an urban agglomeration in Poland made by the biomonitoring of trees
Autorzy:: Chwil, S.
Kozlowska-Strawska, J.
Tkaczyk, P.
Chwil, P.
Matraszek, R.
Powiązania:: https://bibliotekanauki.pl/articles/961597.pdf
Data publikacji:: 2015
Wydawca:: Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Tematy:: assessment
air pollutant
environment pollution
heavy metal
nitrogen
sulphur
urban agglomeration
Polska
tree
leaf
Populus tremula
Sorbus aucuparia
Tilia cordata
biomonitoring
Opis:: In 1970-2000, the state of the natural environment in many regions of Poland was unsatisfactory. This situation has been improving since the integration with the European Union, mainly owing to the reduction of emissions of sulphur and nitrogen oxides. The present study included three tree species: rowan (Sorbus aucuparia L. em. Hedl.), small-leaved lime (Tilia cordata Mill.), and aspen (Populus tremula L.). The trees grew in a pollution free environment (Huszlew) and in an urban agglomeration (Lublin). The aim of this research was to make comparative observations of the structure of leaves in relation to the content of lead, zinc, copper, nitrogen and sulphur determined in these organs. The N/S ratio in the leaves was accepted as an indicator of proper metabolic processes. Observations of leaves were made with using light microscopy and the scanning electron microscopy (SEM) technique. The content of heavy metals in leaves was determined by atomic absorption spectrometry (AAS) after dry mineralization. Total sulphur was determined by the turbidimetric method, while nitrogen by the Kjeldahl method after mineralization in sulphuric acid. When influenced by polluted air, the epidermis of the examined leaves was composed of smaller cells with higher stomatal density per unit area and had a lower number of open pores compared to the epidermis of the leaves developed in a clean environment. Among the species investigated, aspen was characterized by the highest ability to bioaccumulate heavy metals in its leaves. Among the elements determined only the Zn content exceeded the permissible limit, whereas Pb and Cu were found to occur in the range of values considered to be optimal. The dominant share of lead in suspended dust caused changes in the epidermis of leaves, which led to disorders in plant water relations.
Źródło:: Journal of Elementology; 2015, 20, 4
1644-2296
Pojawia się w:: Journal of Elementology
Dostawca treści:: Biblioteka Nauki

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