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HERO ID
1337685
Reference Type
Journal Article
Title
Occurrence and sorption properties of arsenicals in marine sediments
Author(s)
Fauser, P; Sanderson, H; Hedegaard, RV; Sloth, JJ; Larsen, MM; Krongaard, T; Bossi, R; Larsen, JB
Year
2013
Is Peer Reviewed?
Yes
Journal
Environmental Monitoring and Assessment
ISSN:
0167-6369
EISSN:
1573-2959
Volume
185
Issue
6
Page Numbers
4679-4691
Language
English
PMID
23064874
DOI
10.1007/s10661-012-2896-2
Web of Science Id
WOS:000318503100014
Abstract
The content of total arsenic, the inorganic forms: arsenite (As(III)) and arsenate (As(V)), the methylated forms: monomethylarsonic acid and dimethylarsinic acid (DMA), trimethylarsenic oxide, tetramethylarsenonium ion and arsenobetaine was measured in 95 sediment samples and 11 pore water samples from the Baltic Sea near the island of Bornholm at depths of up to 100 m. As(III+V) and DMA were detected in the sediment and As(III+V) was detected in the sediment pore water. Average total As concentration of 10.6 ± 7.4 mg/kg dry matter (DM) in the sediment corresponds to previously reported values in the Baltic Sea and other parts of the world. Existing data for on-site measurements of sorption coefficients (Kd) of arsenicals in marine and freshwater sediments show large variability from <1 to >1,000 L/kg. In this work, calculated sorption coefficients (Kd and Koc) for As(III+V) showed significant correlation with depth, dissolved oxygen (DO), salinity and sediment classification; for depths <70 m, salinity <11 %, DO >9 mg/L and sand/silt/clay sediments the Kd was 118 ± 76 L/kg DM and for depths >70 m, salinity >11 %, DO < 9 mg/L and muddy sediments the Kd was 513 ± 233 L/kg DM. The authors recommend using the found Kd value for arsenic in marine sediments when conditions are similar to the Baltic Sea. At locations with significant anthropogenic point sources or where the local geology contains volcanic rock and sulphide mineral deposits, there may be significantly elevated arsenic concentrations, and it is recommended to determine on-site Kd values.
Keywords
Arsenicals; Marine sediments; Measurements; Sorption coefficient; Kd; Baltic Sea
Tags
IRIS
•
Arsenic Hazard ID
1. Initial Lit Search
PubMed
PubMed
Considered New
PubMed
WOS
Considered New
ToxNet
Considered New
ToxNet
Excluded
Toxnet Duplicates
ToxNet
Excluded
Toxnet Duplicates
ToxNet
Excluded
Toxnet Duplicates
ToxNet
Excluded
Toxnet Duplicates
2. Lit Search Updates through Oct 2015
PubMed
WOS
ToxNet
Considered
4. Considered through Oct 2015
6. Cluster Filter through Oct 2015
7. Other Studies through Oct 2015
Exposure Assessment
•
Arsenic (Inorganic)
1. Literature
PubMed
Lit search updates through Oct 2015
3. Hazard ID Screening
Other potentially supporting studies
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