PMID- 17412897
OWN - NLM
STAT- MEDLINE
DCOM- 20070719
LR  - 20171116
IS  - 0047-2425 (Print)
IS  - 0047-2425 (Linking)
VI  - 36
IP  - 3
DP  - 2007 May-Jun
TI  - Measuring flux of soil fumigants using the aerodynamic and dynamic flux chamber 
      methods.
PG  - 613-20
AB  - Methods for measuring and estimating flux density of soil fumigants under field 
      conditions are important for the purpose of providing inputs to air dispersion 
      models and for comparing the effects of management practices on emission 
      reduction. The objective of this study was to measure the flux of 
      1,3-dichloropropene (1,3-D) and chloropicrin at a site in Georgia (GA) using the 
      aerodynamic method and the dynamic flux chamber (FC) method. A secondary 
      objective was to compare the effects of high density polyethylene (HDPE), and 
      virtually impermeable film (VIF) tarps on fumigant flux at a site in Florida 
      (FL). Chloropicrin and 1,3-D were applied by surface drip application of In-Line 
      soil fumigant on vegetable beds covered by low density polyethylene (LDPE), HDPE, 
      or VIF. The surface drip fumigation using In-Line and LDPE tarp employed in this 
      study resulted in volatilization of 26.5% of applied 1,3-D and 11.2% of the 
      applied chloropicrin at the GA site, as determined using the aerodynamic method. 
      Estimates of mass loss obtained from dynamic FCs were 23.6% for 1,3-D and 18.0% 
      for chloropicrin at the GA site. Flux chamber trials at the FL site indicate 
      significant additional reduction in flux density, and cumulative mass loss when 
      VIF tarp is used. This study supports the use of dynamic FCs as a valuable tool 
      for estimating gas flux density from agricultural soils, and evaluating best 
      management practices for reducing fumigant emissions to the atmosphere.
FAU - van Wesenbeeck, I J
AU  - van Wesenbeeck IJ
AD  - Dow AgroSciences, 9330 Zionsville Rd., Building 306/A2, Indianapolis, IN 46268, 
      USA. ijvanwesenbeeck@dow.com
FAU - Knuteson, J A
AU  - Knuteson JA
FAU - Barnekow, D E
AU  - Barnekow DE
FAU - Phillips, A M
AU  - Phillips AM
LA  - eng
PT  - Journal Article
DEP - 20070405
PL  - United States
TA  - J Environ Qual
JT  - Journal of environmental quality
JID - 0330666
RN  - 0 (Allyl Compounds)
RN  - 0 (Hydrocarbons, Chlorinated)
RN  - 0 (Insecticides)
RN  - 0 (Soil)
RN  - 0 (Soil Pollutants)
RN  - 0 (Water Pollutants, Chemical)
RN  - 9002-88-4 (Polyethylene)
RN  - 9H780918D0 (1,3-dichloro-1-propene)
RN  - I4JTX7Z7U2 (chloropicrin)
SB  - IM
MH  - Allyl Compounds/*chemistry
MH  - Fumigation
MH  - Hydrocarbons, Chlorinated/*chemistry
MH  - Insecticides/*chemistry
MH  - Polyethylene
MH  - Soil/*analysis
MH  - Soil Pollutants/analysis
MH  - Time Factors
MH  - Water Pollutants, Chemical/analysis
EDAT- 2007/04/07 09:00
MHDA- 2007/07/20 09:00
CRDT- 2007/04/07 09:00
PHST- 2007/04/07 09:00 [pubmed]
PHST- 2007/07/20 09:00 [medline]
PHST- 2007/04/07 09:00 [entrez]
AID - 36/3/613 [pii]
AID - 10.2134/jeq2006.0258 [doi]
PST - epublish
SO  - J Environ Qual. 2007 Apr 5;36(3):613-20. doi: 10.2134/jeq2006.0258. Print 2007 
      May-Jun.