Umeå University's logo

umu.sePublications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
A Lead (Pb) Mass-Balance Budget for a Dry Periglacial Catchment in West Greenland: Discussing the fate of pollutant Pb
Umeå University, Faculty of Science and Technology, Department of Ecology and Environmental Sciences.
2020 (English)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

Lead (Pb), occurs both naturally and as a pollutant in Arctic landscape systems. The ongoing climate change, especially pronounced in the Arctic, changes the premises for Pb transport and mobility. Thus, to predict future development of both natural and pollution Pb, an increased understanding of their storages and flows in an Arctic system is of interest. Here, a Pb mass-balance budget for an entire catchment in West Greenland was calculated. The budget shows that most Pb is stored in terrestrial soils (94%), while 6% of total catchment Pb is in lake sediments. Other Pb-pools are small in comparison (<1% combined). The entire catchment system has a negative balance, with annual inputs of 44 g Pb from precipitation and 67 g Pb from eolian deposition, while 150 g Pb is removed from the system (through sedimentation). Limited lake water outflow (o.15 g Pb yr-1) suggests that the catchment in its entirety acts as a Pb-sink. The terrestrial system, however (wet deposition input of 34 g Pb and hydrological export of 68 g Pb annually), is considered to be a Pb-source to the aquatic system. The magnitude of hydrological and eolian transport is similar, however the former is more important for pollution Pb transport where the latter is more important for natural Pb. The fate of pollutant Pb is determined by future climate change. Wetter conditions could lead to a prolonged export of Pb further down-stream. If drier conditions prevail, eolian transport will be more important and pollution Pb could stay in soils.

Place, publisher, year, edition, pages
2020. , p. 19
Keywords [en]
Lead mass-balance budget; Dry periglacial landscape; Whole catchment; Pollution; Climate change
National Category
Earth and Related Environmental Sciences
Identifiers
URN: urn:nbn:se:umu:diva-171856OAI: oai:DiVA.org:umu-171856DiVA, id: diva2:1438888
Educational program
Bachelor of Science in Biology and Earthscience
Available from: 2020-06-12 Created: 2020-06-11 Last updated: 2020-06-12Bibliographically approved

Open Access in DiVA

fulltext(550 kB)99 downloads
File information
File name FULLTEXT01.pdfFile size 550 kBChecksum SHA-512
3b2d233e0689d270173b509fb9b83621fc144fb4b87af1835c408eb085ec78bf9037f568025f2f2773ab3641e9927e49d23a30490a50bb13141fc77231b10d9f
Type fulltextMimetype application/pdf

Search in DiVA

By author/editor
Nylund, Andreas
By organisation
Department of Ecology and Environmental Sciences
Earth and Related Environmental Sciences

Search outside of DiVA

GoogleGoogle Scholar
Total: 99 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

urn-nbn

Altmetric score

urn-nbn
Total: 205 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf