Wyniki wyszukiwania - BazTech

Ograniczanie wyników

Znaleziono wyników: 2

Liczba wyników na stronie

Wyniki wyszukiwania

Sortuj według:

Ogranicz wyniki do:

Influence of former industrial waste landfill in central Poland on PCBs content in the environment

Gabryszewska Marta, Gworek Barbara

Archives of Environmental Protection

2021

Vol. 47, no. 2

61--69

The aim of this study was to investigate the impact of industrial waste landfill on the release of polychlorinated biphenyls (PCBs) on the environment with reference to water flow directions. 10 study plots were designated around the landfill site. Soil samples were taken from different soil layers. Plants: Solidago canadensis (leaves, stem), Quercus L. (leaves), and Poaceae were tested on PCBs contents. Groundwater samples were taken from piezometers. PCBs in the samples were determined by gas chromatography with an electron capture detector (GC/ECD). The highest accumulation of PCBs congeners was observed in the topsoil layers and decreased with the sampling depth. The dominant PCBs congeners in soil were PCB 28 and PCB 138, in plants PCB 28 and PCB 52. The most significant PCBs accumulation in the topsoil layer occurred in the research area on which the largest amount of waste was deposited and was equal to 14.2 ng/g. The largest sum of determined PCBs congeners was found in Solidago canadensis leaves – 3.26 ng/g and Quercus L. leaves – 3.32 ng/g. PCB 28 and PCB 52 were capable of translocation from soil to plants. It was found that the water flow direction did not affect PCB content in soils.

Polichlorowane bifenyle w glebach o zróżnicowanym sposobie użytkowania

Gabryszewska Marta, Gworek Barbara

Przemysł Chemiczny

2020

T. 99, nr 12

1780--1783

Oceniono wpływ źródeł uwalniania polichlorowanych bifenyli (PCB) na ich zawartość w glebach i roślinach na obszarach o zróżnicowanym użytkowaniu oraz oceniono przemieszczanie się PCB w głąb profilu glebowego. Zbadano zależności pomiędzy zawartością PCB w glebie i ich zawartością w roślinach z uwzględnieniem źródła emisji. Akumulacji w glebach i roślinach ulegały przede wszystkim kongenery PCB 28 i PCB 52. Nisko chlorowane PCB przemieszczały się w głąb profilu glebowego na głębokość ok. 40 cm. Stwierdzono istotną statystycznie zależność pomiędzy zawartością PCB w badanych roślinach a ich zawartością w glebach.

Soil samples were collected from 3 areas with diversified use and from layers of different depth (0–200 cm) as well as samples of plants growing in these areas. The content of polychlorinated biphenyls (PCB) in soils and plants was detd. by GC/ECD method. The PCB accumulation in soils and plants was mainly caused by PCB 28 (3 Cl atoms) and PCB 52 (4 Cl atoms) congeners. Low chlorinated PCBs moved deep into the soil profile to the depth of about 40 cm. A statistically significant relationship was found between PCB content in the tested plants and their content in soils.