Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
9
pubmed:dateCreated
2002-10-29
pubmed:abstractText
Freshwater sediments and water samples were quarterly collected at different sampling stations from August 1996 to April 1998 in the Fei-Tsui reservoir watershed (FTRW) of northern Taiwan. The sediment and soil samples were digested using mixture of inorganic acids to analyze the total concentration of ten metals. The baseline concentrations of ten metals in the sediments of FTRW were calculated from the geometric mean (GM) values and the geometric standard deviation (GSD). The baseline concentrations of 10 metals in the 239 sediments of this watershed are listed as followings (mg/kg, only % for Fe): As 1.80-51.5, Cd 0.04-7.54, Cr 5.25-273, Cu 2.65-91.7, Hg 0.03-0.26, Mn 18.6-2310, Ni 3.95-167, Pb 1.10-75.4, Zn 6.46-327, and Fe 0.47-9.63%. However, the GMs of 10 metal concentrations in the sediments were lower than the regulated threshold concentrations in Taiwan rural soils. Highly correlations among different metals in the sediments of FTRW indicate that very similar sediments of formation process control the metal content associated with the parent materials. Inadequate land use results in As, Cr, Mn, and Ni accumulated in the sediment to show potentially contamination risk in the study area associated with accelerated erosion and runoff.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
1093-4529
pubmed:author
pubmed:issnType
Print
pubmed:volume
37
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1633-47
pubmed:dateRevised
2009-8-14
pubmed:meshHeading
pubmed:year
2002
pubmed:articleTitle
Baseline concentrations of ten metals in the freshwater sediments of a watershed in Taiwan.
pubmed:affiliation
Department of Environmental Science and Engineering, National Pingtung University of Science and Technology, Taiwan, ROC.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't