Document Detail


Effect of sequential surface irrigations on field-scale emissions of 1,3-dichloropropene.
MedLine Citation:
PMID:  19192793     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
A field experiment was conducted to measure subsurface movement and volatilization of 1,3-dichloropropene (1,3-D) after shank injection to an agricultural soil. The goal of this study was to evaluate the effect of sprinkler irrigation on the emissions of 1,3-D to the atmosphere and is based on recent research that has shown that saturating the soil pore space reduces gas-phase diffusion and leads to reduced volatilization rates. Aerodynamic, integrated horizontal flux, and theoretical profile shape methods were used to estimate fumigant volatilization rates and total emission losses. These methods provide estimates of the volatilization rate based on measurements of wind speed, temperature, and 1,3-D concentration in the atmosphere. The volatilization rate was measured continuously for 16 days, and the daily peak volatilization rates for the three methods ranged from 18 to 60 microg m(-2) s(-1). The total 13-D mass entering the atmosphere was approximately 44-68 kg ha(-1), or 10-15% of the applied active ingredient This represents approximately 30-50% reduction in the total emission losses compared to conventional fumigant applications in field and field-plot studies. Significant reduction in volatilization of 1,3-D was observed when five surface irrigations were applied to the field, one immediately after fumigation followed by daily irrigations.
Authors:
S R Yates; J Knuteson; F F Ernst; W Zheng; Q Wang
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Environmental science & technology     Volume:  42     ISSN:  0013-936X     ISO Abbreviation:  Environ. Sci. Technol.     Publication Date:  2008 Dec 
Date Detail:
Created Date:  2009-02-05     Completed Date:  2009-03-05     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0213155     Medline TA:  Environ Sci Technol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  8753-8     Citation Subset:  IM    
Affiliation:
USDA-ARS, U.S. Salinity Laboratory, 450 W. Big Springs Rd., Riverside, California 92507, USA. scott.yates@ars.usda.gov
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MeSH Terms
Descriptor/Qualifier:
Allyl Compounds / analysis*
Gases / chemistry
Soil
Surface Properties
Temperature
Time Factors
Volatilization
Water / chemistry*
Wind
Chemical
Reg. No./Substance:
0/Allyl Compounds; 0/Gases; 0/Soil; 542-75-6/1,3-dichloro-1-propene; 7732-18-5/Water

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


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