umu.sePublications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • 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
Characteristics of dissolved organic matter (DOM) and relationship with dissolved mercury in Xiaoqing River-Laizhou Bay estuary, Bohai Sea, China
Umeå University, Faculty of Science and Technology, Department of Chemistry.
Show others and affiliations
2017 (English)In: Environmental Pollution, ISSN 0269-7491, E-ISSN 1873-6424, Vol. 223, 19-30 p.Article in journal (Refereed) Published
Abstract [en]

Abstract Because of heterogeneous properties, dissolved organic matter (DOM) is known to control the environmental fate of a variety of organic pollutants and trace metals in aquatic systems. Here we report absorptive and fluorescence properties of DOM, in concurrence with concentrations of dissolved mercury (Hg), along the Xiaoqing River-Laizhou Bay estuary system located in the Bohai Sea of China. A mixing model consisting of the two end-members terrestrial and aquatic DOM demonstrated that terrestrial signatures decreased significantly from the river into the estuary. Quasi-conservative mixing behavior of DOM sources suggests that the variations in the average DOM composition were governed by physical processes (e.g., dilution) rather than by new production and/or degradation processes. In contrast to some previous studies of river-estuary systems, the Xiaoqing River-Laizhou Bay estuary system displayed a non-significant correlation between DOM and Hg quantities. Based on this and the variation of Hg concentration along the salinity gradient, we concluded that Hg showed a non-conservative mixing behavior of suggested end-member sources. Thus, rather than mixing, Hg concentration variations seemed to be controlled by biogeochemical processes.

Place, publisher, year, edition, pages
Elsevier, 2017. Vol. 223, 19-30 p.
Keyword [en]
Dissolved organic matter, Fluorescence, UV–Vis absorption, Bohai Sea, Laizhou Bay, Mercury
National Category
Other Earth and Related Environmental Sciences Geochemistry
Identifiers
URN: urn:nbn:se:umu:diva-133344DOI: 10.1016/j.envpol.2016.12.006ISI: 000397359500003PubMedID: 28131480OAI: oai:DiVA.org:umu-133344DiVA: diva2:1087185
Available from: 2017-04-06 Created: 2017-04-06 Last updated: 2017-06-15Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full textPubMed

Search in DiVA

By author/editor
Björn, Erik
By organisation
Department of Chemistry
In the same journal
Environmental Pollution
Other Earth and Related Environmental SciencesGeochemistry

Search outside of DiVA

GoogleGoogle Scholar

Altmetric score

Total: 43 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • 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