id:"swepub:oai:DiVA.org:kth-137455"
Search: id:"swepub:oai:DiVA.org:kth-137455" > Fractionation of he...
- 1 of 1
- Previous record
- Next record
- To hitlist
Fractionation of heavy metals and assessment of contamination of the sediments of Lake Titicaca
- Caceres Choque, Luis Fernando (author)
-
- Ramos Ramos, Oswaldo E. (author)
- KTH,Mark- och vattenteknik
- Valdez Castro, Sulema N. (author)
- show more...
- Choque Aspiazu, Rigoberto R. (author)
- Choque Mamani, Rocio G. (author)
- Fernandez Alcazar, Samuel G. (author)
- Sracek, Ondra (author)
- show less...
- (creator_code:org_t)
- 2013-08-29
- 2013
- English.
- In: Environmental Monitoring & Assessment. - : Springer Science and Business Media LLC. - 0167-6369 .- 1573-2959. ; 185:12, s. 9979-9994
- Journal article (peer-reviewed)
Abstract
Subject headings
Close
- Chemical weathering is one of the major geochemical processes that control the mobilization of heavy metals. The present study provides the first report on heavy metal fractionation in sediments (8-156 m) of Lake Titicaca (3,820 m a.s.l.), which is shared by the Republic of Peru and the Plurinational State of Bolivia. Both contents of total Cu, Fe, Ni, Co, Mn, Cd, Pb, and Zn and also the fractionation of these heavy metals associated with four different fractions have been determined following the BCR scheme. The principal component analysis suggests that Co, Ni, and Cd can be attributed to natural sources related to the mineralized geological formations. Moreover, the sources of Cu, Fe, and Mn are effluents and wastes generated from mining activities, while Pb and Zn also suggest that their common source is associated to mining activities. According to the Risk Assessment Code, there is a moderate to high risk related to Zn, Pb, Cd, Mn, Co, and Ni mobilization and/or remobilization from the bottom sediment to the water column. Furthermore, the Geoaccumulation Index and the Enrichment Factor reveal that Zn, Pb, and Cd are enriched in the sediments. The results suggest that the effluents from various traditional mining waste sites in both countries are the main source of heavy metal contamination in the sediments of Lake Titicaca.
Subject headings
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Annan geovetenskap och miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Other Earth and Related Environmental Sciences (hsv//eng)
Keyword
- Enrichment factor
- Heavy metals
- Lake Titicaca
- Sediments
- Sequential extraction
- Risk Assessment Code
Publication and Content Type
- ref (subject category)
- art (subject category)
Find in a library
- Environmental Monitoring & Assessment (Search for host publication in LIBRIS)
To the university's database
- 1 of 1
- Previous record
- Next record
- To hitlist
Find more in SwePub
- By the author/editor
- Caceres Choque, ...
- Ramos Ramos, Osw ...
- Valdez Castro, S ...
- Choque Aspiazu, ...
- Choque Mamani, R ...
- Fernandez Alcaza ...
- show more...
- Sracek, Ondra
- Bhattacharya, Pr ...
- show less...
- About the subject
-
- NATURAL SCIENCES
- NATURAL SCIENCES
- and Earth and Relate ...
- and Other Earth and ...
- Articles in the publication
- Environmental Mo ...
- By the university
- Royal Institute of Technology
Search outside SwePub
- Extend your search to:
- Google Book Search
- Google Scholar
Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.
- Copyright © LIBRIS - National Library Systems
- LIBRIS.kb.se
