PMID- 24130007
OWN - NLM
STAT- MEDLINE
DCOM- 20140521
LR  - 20181202
IS  - 1552-8618 (Electronic)
IS  - 0730-7268 (Linking)
VI  - 33
IP  - 2
DP  - 2014 Feb
TI  - Effect of suspended uncontaminated sediment on persistent organic pollutant 
      release.
PG  - 375-81
AB  - The transport and fate of persistent organic pollutants (POPs) during 
      resuspension events were investigated using a batch mixing technique. This 
      technique allowed for the determination of sorption and desorption kinetics under 
      more realistic mixing conditions than those used in previous investigations. It 
      was demonstrated that sorption follows second-order kinetics that are dependent 
      on both POP concentration and the total suspended solids (TSS) of the system. 
      Desorption shows a similar dependence. To further characterize pollutant release, 
      the impact on maximum POP release of suspending uncontaminated sediment 
      concomitantly with contaminated sediment was investigated, as this more 
      accurately models real-world resuspension events. It was found that even 
      relatively low ratios of uncontaminated to contaminated sediment (1:2) yield a 
      maximum POP release nearly 10 times lower than for systems containing only 
      contaminated sediment. Increasing the ratio of uncontaminated sediment further 
      reduced maximum POP release. These results highlight an important limitation of 
      laboratory desorption experiments and current risk-assessment models related to 
      dredging operations; under typical field conditions, the impact of dredging on 
      pollutant transport and fate may be greatly overpredicted.
CI  - (c) 2013 SETAC.
FAU - Handlin, Mzuri
AU  - Handlin M
FAU - Molina, Andrew
AU  - Molina A
FAU - James, Nicole
AU  - James N
FAU - McConville, Megan
AU  - McConville M
FAU - Dunnivant, Frank
AU  - Dunnivant F
LA  - eng
GR  - 52006327/Howard Hughes Medical Institute/United States
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - United States
TA  - Environ Toxicol Chem
JT  - Environmental toxicology and chemistry
JID - 8308958
RN  - 0 (Water Pollutants, Chemical)
RN  - CIW5S16655 (DDT)
RN  - V14159DF29 (Dichlorodiphenyldichloroethane)
SB  - IM
MH  - Adsorption
MH  - DDT/chemistry
MH  - Dichlorodiphenyldichloroethane/chemistry
MH  - Geologic Sediments/*chemistry
MH  - Kinetics
MH  - *Models, Theoretical
MH  - Water Pollutants, Chemical/*chemistry
EDAT- 2013/10/17 06:00
MHDA- 2014/05/23 06:00
CRDT- 2013/10/17 06:00
PHST- 2013/05/14 00:00 [received]
PHST- 2013/08/17 00:00 [revised]
PHST- 2013/10/07 00:00 [accepted]
PHST- 2013/10/17 06:00 [entrez]
PHST- 2013/10/17 06:00 [pubmed]
PHST- 2014/05/23 06:00 [medline]
AID - 10.1002/etc.2430 [doi]
PST - ppublish
SO  - Environ Toxicol Chem. 2014 Feb;33(2):375-81. doi: 10.1002/etc.2430.