PMID- 11993884
OWN - NLM
STAT- MEDLINE
DCOM- 20021104
LR  - 20190714
IS  - 0013-936X (Print)
IS  - 0013-936X (Linking)
VI  - 36
IP  - 8
DP  - 2002 Apr 15
TI  - Effect of environmental conditions on the permeability of high density 
      polyethylene film to fumigant vapors.
PG  - 1833-8
AB  - Soil fumigation in greenhouses or agricultural fields often includes tarping the 
      soil surface with polyethylene (PE) films to contain the fumigant in the soil and 
      reduce emissions to the atmosphere. Previous research has demonstrated that PE 
      films are permeable to methyl bromide and other fumigant compounds. In these 
      experiments, the effect of temperature, fumigant mixtures, condensed water, and 
      field aging on the permeability of high-density polyethylene (HDPE) was 
      determined. Mass transfer coefficients (h, a measure of permeability) of the 
      fumigants methyl bromide, 1,3-dichloropropene, propargyl bromide, and 
      chloropicrin across HDPE films were determined. In these studies, temperature and 
      HDPE film type had the largest impact on the h of fumigant compounds across HDPE 
      films. Other factors investigated, including fumigant mixtures, condensed water 
      on the film, and field aging of UV-stabilized film, did not have a significant 
      impact on h. The results of these experiments suggest that the permeability of an 
      intact piece of an agricultural film will increase with increasing temperature 
      but is relatively constant despite changes in other environmental conditions.
FAU - Papiernik, Sharon K
AU  - Papiernik SK
AD  - USDA-ARS, George E. Brown, Jr. Salinity Laboratory, Riverside, California 
      92507-4617, USA. spapiernik@ussl.ars.usdo.gov
FAU - Yates, Scott R
AU  - Yates SR
LA  - eng
PT  - Journal Article
PL  - United States
TA  - Environ Sci Technol
JT  - Environmental science & technology
JID - 0213155
RN  - 0 (Pesticides)
RN  - 059QF0KO0R (Water)
RN  - 9002-88-4 (Polyethylene)
SB  - IM
MH  - *Fumigation
MH  - Permeability
MH  - Pesticides/*chemistry
MH  - Polyethylene/*chemistry
MH  - Temperature
MH  - Time Factors
MH  - Volatilization
MH  - Water
EDAT- 2002/05/08 10:00
MHDA- 2002/11/26 04:00
CRDT- 2002/05/08 10:00
PHST- 2002/05/08 10:00 [pubmed]
PHST- 2002/11/26 04:00 [medline]
PHST- 2002/05/08 10:00 [entrez]
AID - 10.1021/es011252i [doi]
PST - ppublish
SO  - Environ Sci Technol. 2002 Apr 15;36(8):1833-8. doi: 10.1021/es011252i.