title: Geochemical Characteristics of the Vertical Distribution of Heavy Metals in the Hummocky Peatlands of the Cryolithozone
metadata.name: dc.contributor.author
metadata.value: Evgeny, Abakumov
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Evgeny, Lodygin
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Roman, Vasilevitch
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Maria, Vasilyevithc
metadata.lang: -
metadata.name: dc.date.accessioned
metadata.value: 2023-04-01T11:53:46Z
metadata.lang: -
metadata.name: dc.date.available
metadata.value: 2023-04-01T11:53:46Z
metadata.lang: -
metadata.name: dc.date.issued
metadata.value: 2023-02-21
metadata.lang: -
metadata.name: dc.identifier.citation
metadata.value: Vasilevich, R.; Vasilevich, M.; Lodygin, E.; Abakumov, E. Geochemical Characteristics of the Vertical Distribution of Heavy Metals in the Hummocky Peatlands of the Cryolithozone. Int. J. Environ. Res. Public Health 2023, 20, 3847. https: //doi.org/10.3390/ijerph20053847
metadata.lang: en_GB
metadata.name: dc.identifier.issn
metadata.value: 16617827
metadata.lang: -
metadata.name: dc.identifier.uri
metadata.value: http://hdl.handle.net/11701/39450
metadata.lang: -
metadata.name: dc.description.abstract
metadata.value: One of the main reservoirs depositing various classes of pollutants in high latitude regions
  are wetland ecosystems. Climate warming trends result in the degradation of permafrost in cryolitic
  peatlands, which exposes the hydrological network to risks of heavy metal (HM) ingress and its subsequent
  migration to the Arctic Ocean basin. The objectives included: (1) carrying out a quantitative
  analysis of the content of HMs and As across the profile of Histosols in background and technogenic
  landscapes of the Subarctic region, (2) evaluating the contribution of the anthropogenic impact to the
  accumulation of trace elements in the seasonally thawed layer (STL) of peat deposits, (3) discovering
  the effect of biogeochemical barriers on the vertical distribution of HMs and As. The analyses of
  elements were conducted by atom emission spectroscopy with inductively coupled plasma, atomic
  absorption spectroscopy and scanning electron microscopy with an energy-dispersive X-ray detecting.
  The study focused on the characteristics of the layer-by-layer accumulation of HMs and As in
  hummocky peatlands of the extreme northern taiga. It revealed the upper level of microelement
  accumulation to be associated with the STL as a result of aerogenic pollution. Specifically composed
  spheroidal microparticles found in the upper layer of peat may serve as indicators of the area polluted
  by power plants. The accumulation of water-soluble forms of most of the pollutants studied on the
  upper boundary of the permafrost layer (PL) is explained by the high mobility of elements in an acidic
  environment. In the STL, humic acids act as a significant sorption geochemical barrier for elements
  with a high stability constant value. In the PL, the accumulation of pollutants is associated with
  their sorption on aluminum-iron complexes and interaction with the sulfide barrier. A significant
  contribution of biogenic element accumulation was shown by statistical analysis.
metadata.lang: en_GB
metadata.name: dc.description.sponsorship
metadata.value: The reported study by Lodygin E., Vasilevich R. and Vasilevich M. was funded by the
  Federal budget of Russia, within the framework of the research topics of the In-stitute of Biology
  (No. 122040600023-8 and 122040600026-9). The work of E. Abakumov (e.abakumov@spbu.ru) was
  supported by the St. Petersburg State University grant No. GZ_MDF_2023–1, ID: 101662710.
metadata.lang: en_GB
metadata.name: dc.language.iso
metadata.value: en
metadata.lang: en_GB
metadata.name: dc.publisher
metadata.value: MDPI
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: subarctic region; peatlands; histosols; biogeochemical barriers; ecotoxicants; technogenesis
metadata.lang: en_GB
metadata.name: dc.title
metadata.value: Geochemical Characteristics of the Vertical Distribution of Heavy Metals in the Hummocky Peatlands of the Cryolithozone
metadata.lang: en_GB
metadata.name: dc.type
metadata.value: Article
metadata.lang: en_GB
resources.filename: ijerph-20-03847-v2.pdf
resources.url: https://dspace.spbu.ru/bitstream/11701/39450/1/ijerph-20-03847-v2.pdf
resources.format: Adobe PDF
resources.size: 4,92 MB