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Elemental Composition of Natural Nanoparticles and Fine Colloids in European Forest Stream Waters and Their Role as Phosphorus Carriers
- Source :
- Global Biogeochemical Cycles. 31:1592-1607
- Publication Year :
- 2017
- Publisher :
- American Geophysical Union (AGU), 2017.
-
Abstract
- Biogeochemical cycling of elements largely occurs in dissolved state, but many elements may also be bound to natural nanoparticles (NNP, 1-100 nm) and fine colloids (100-450 nm). We examined the hypothesis that the size and composition of stream water NNP and colloids vary systematically across Europe. To test this hypothesis, 96 stream water samples were simultaneously collected in 26 forested headwater catchments along two transects across Europe. Three size fractions (~1-20 nm, >20-60 nm, and >60 nm) of NNP and fine colloids were identified with Field Flow Fractionation coupled to inductively coupled plasma mass spectrometry and an organic carbon detector. The results showed that NNP and fine colloids constituted between 2 ± 5% (Si) and 53 ± 21% (Fe; mean ± SD) of total element concentrations, indicating a substantial contribution of particles to element transport in these European streams, especially for P and Fe. The particulate contents of Fe, Al, and organic C were correlated to their total element concentrations, but those of particulate Si, Mn, P, and Ca were not. The fine colloidal fractions >60 nm were dominated by clay minerals across all sites. The resulting element patterns of NNP
- Subjects :
- Total organic carbon
Atmospheric Science
Global and Planetary Change
Biogeochemical cycle
010504 meteorology & atmospheric sciences
Phosphorus
chemistry.chemical_element
010501 environmental sciences
Particulates
01 natural sciences
chemistry
13. Climate action
Environmental chemistry
Dissolved organic carbon
Environmental Chemistry
Composition (visual arts)
Clay minerals
Inductively coupled plasma mass spectrometry
0105 earth and related environmental sciences
General Environmental Science
Subjects
Details
- ISSN :
- 08866236
- Volume :
- 31
- Database :
- OpenAIRE
- Journal :
- Global Biogeochemical Cycles
- Accession number :
- edsair.doi...........e1f4217b66605ed35c3ff248c4c2a815