Document Detail

A novel fractionation approach for water constituents - distribution of storm event metals.
MedLine Citation:
PMID:  23535891     Owner:  NLM     Status:  MEDLINE    
A novel fractionation method, based on both particle size and settling characteristics, was employed to examine metal distributions among five fractions. In-stream and stormwater runoff samples were collected from four land use types: highway, urban, agricultural (storm event and irrigation), and natural. Highway samples contained the highest dissolved concentrations for most metals, and freshwater ambient water quality criteria were exceeded for Cd, Cu, Pb, and Zn in the first storm of the water year. Anthropogenic sources were indicated for Cu, Zn, Cd, and Pb in highway and urban samples, and total metal loadings (mg km(-2)) were observed to be as follows: highway > urban > agricultural storm event ∼ natural > agricultural irrigation. Notably, ∼10-fold higher suspended solids concentration was observed in the agricultural storm event sample, and suspended solids-associated metals were correspondingly elevated. Distribution coefficients revealed the following affinities: Zn, Ni, Cd, and Pb to large dense particles; and Cu, Zn, Cr, Ni, and Pb to colloidal organic matter.
Erica R McKenzie; Thomas M Young
Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Environmental science. Processes & impacts     Volume:  15     ISSN:  2050-7895     ISO Abbreviation:  Environ Sci Process Impacts     Publication Date:  2013 May 
Date Detail:
Created Date:  2013-05-01     Completed Date:  2013-10-29     Revised Date:  2014-10-01    
Medline Journal Info:
Nlm Unique ID:  101601576     Medline TA:  Environ Sci Process Impacts     Country:  England    
Other Details:
Languages:  eng     Pagination:  1006-16     Citation Subset:  IM    
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MeSH Terms
Chemical Fractionation / instrumentation*
Environmental Monitoring / instrumentation*
Equipment Design
Fresh Water / analysis
Metals / analysis*
Particle Size
Rain / chemistry
Water / analysis*
Water Movements
Water Pollutants, Chemical / analysis*
Grant Support
Reg. No./Substance:
0/Metals; 0/Water Pollutants, Chemical; 059QF0KO0R/Water

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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