PMID- 20704240
OWN - NLM
STAT- MEDLINE
DCOM- 20101116
LR  - 20181201
IS  - 1520-5851 (Electronic)
IS  - 0013-936X (Linking)
VI  - 44
IP  - 16
DP  - 2010 Aug 15
TI  - Impact of plastics on fate and transport of organic contaminants in landfills.
PG  - 6396-402
LID - 10.1021/es101251p [doi]
AB  - Factors controlling organic contaminant sorption to common plastics in municipal 
      solid waste were identified. Consumer plastics [drinking water container, 
      prescription drug bottle, soda bottle, disposable cold cup, computer casing, 
      furniture foam, carpet, vinyl flooring, formica sheet] and model polymers 
      [high-density polyethylene (HDPE), medium-density polyethylene, low-density 
      polyethylene, poly(vinyl chloride) (PVC)] were characterized by X-ray 
      diffractometry, differential scanning calorimetry, and elemental analysis. The 
      material characterization was used to interpret batch isotherm and kinetic data. 
      K(p) values describing toluene sorption to rubbery or "soft" polymers could be 
      normalized by the amorphous polymer fraction (f(amorphous)) but not by the 
      organic carbon fraction (f(oc)). Diffusion coefficients (D) describing the uptake 
      rate of toluene by rubbery plastics (HDPE, drinking water container, prescription 
      drug bottle) were similar (D approximately 10(-10) cm(2)/s), indicating that pure 
      HDPE can be used as a model for rubbery plastics. Toluene diffusivity was similar 
      among glassy or "hard" plastics (PVC, soda bottle, computer casing, disposable 
      cold cup; D approximately 10(-12) cm(2)/s) but lower than for rubbery plastics. 
      Plastics in landfills are potential sinks of hydrophobic organic contaminants 
      (HOCs) because of their higher affinity for HOCs compared to lignocellulosic 
      materials and the slow desorption of HOCs from glassy plastics.
FAU - Saquing, Jovita M
AU  - Saquing JM
AD  - Department of Civil, Construction, and Environmental Engineering, Box 7908, North 
      Carolina State University, Raleigh, North Carolina 27695-7908, USA. 
      jmsaquing@gmail.com
FAU - Saquing, Carl D
AU  - Saquing CD
FAU - Knappe, Detlef R U
AU  - Knappe DR
FAU - Barlaz, Morton A
AU  - Barlaz MA
LA  - eng
PT  - Journal Article
PT  - Research Support, U.S. Gov't, Non-P.H.S.
PL  - United States
TA  - Environ Sci Technol
JT  - Environmental science & technology
JID - 0213155
RN  - 0 (Environmental Pollutants)
RN  - 0 (Organic Chemicals)
RN  - 0 (Plastics)
RN  - 3FPU23BG52 (Toluene)
SB  - IM
MH  - Adsorption
MH  - Cities
MH  - Diffusion
MH  - Environmental Pollutants/*chemistry
MH  - Hydrophobic and Hydrophilic Interactions
MH  - *Motion
MH  - Organic Chemicals/*chemistry
MH  - Plastics/*chemistry
MH  - *Refuse Disposal
MH  - Toluene/chemistry
EDAT- 2010/08/14 06:00
MHDA- 2010/11/17 06:00
CRDT- 2010/08/14 06:00
PHST- 2010/08/14 06:00 [entrez]
PHST- 2010/08/14 06:00 [pubmed]
PHST- 2010/11/17 06:00 [medline]
AID - 10.1021/es101251p [doi]
PST - ppublish
SO  - Environ Sci Technol. 2010 Aug 15;44(16):6396-402. doi: 10.1021/es101251p.