PMID- 16738389 OWN - NLM STAT- MEDLINE DCOM- 20061205 LR - 20161124 IS - 0047-2425 (Print) IS - 0047-2425 (Linking) VI - 35 IP - 4 DP - 2006 Jul-Aug TI - Using surface water application to reduce 1,3-dichloropropene emission from soil fumigation. PG - 1040-8 AB - High emissions from soil fumigants increase the risk of detrimental impact on workers, bystanders, and the environment, and jeopardize future availability of fumigants. Efficient and cost-effective approaches to minimize emissions are needed. This study evaluated the potential of surface water application (or water seal) to reduce 1,3-dichloropropene (1,3-D) emissions from soil (Hanford sandy loam) columns. Treatments included dry soil (control), initial water application (8 mm of water just before fumigant application), initial plus a second water application (2.6 mm) at 12 h, initial plus two water applications (2.6 mm each time) at 12 and 24 h, standard high density polyethylene (HDPE) tarp, initial water application plus HDPE tarp, and virtually impermeable film (VIF) tarp. Emissions from the soil surface and distribution of 1,3-D in the soil-gas phase were monitored for 2 wk. Each water application abruptly reduced 1,3-D emission flux, which rebounded over a few hours. Peak emission rates were substantially reduced, but total emission reduction was small. Total fumigant emission was 51% of applied for the control, 46% for initial water application only, and 41% for the three intermittent water applications with the remaining water treatment intermediate. The HDPE tarp alone resulted in 45% emission, while initial water application plus HDPE tarp resulted in 38% emission. The most effective soil surface treatment was VIF tarp (10% emission). Surface water application can be as effective, and less expensive than, standard HDPE tarp. Frequent water application is required to substantially reduce emissions. FAU - Gao, Suduan AU - Gao S AD - USDA-ARS, Water Management Research Unit, San Joaquin Valley Agricultural Sciences Center, Parlier, CA 93648, USA. sgao@frensno.ars.usda.gov FAU - Trout, Thomas J AU - Trout TJ LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20060531 PL - United States TA - J Environ Qual JT - Journal of environmental quality JID - 0330666 RN - 0 (Allyl Compounds) RN - 0 (Hydrocarbons, Chlorinated) RN - 0 (Pesticides) RN - 0 (Soil Pollutants) RN - 0 (Water Pollutants, Chemical) RN - 9H780918D0 (1,3-dichloro-1-propene) SB - IM MH - Agriculture/methods MH - Allyl Compounds/*analysis/chemistry MH - Fumigation/*methods MH - Hydrocarbons, Chlorinated MH - Pesticides/*analysis/chemistry MH - Soil Pollutants/*analysis MH - Time Factors MH - Volatilization MH - Water Pollutants, Chemical/*analysis MH - Water Supply/analysis/standards EDAT- 2006/06/02 09:00 MHDA- 2006/12/09 09:00 CRDT- 2006/06/02 09:00 PHST- 2006/06/02 09:00 [pubmed] PHST- 2006/12/09 09:00 [medline] PHST- 2006/06/02 09:00 [entrez] AID - 35/4/1040 [pii] AID - 10.2134/jeq2005.0331 [doi] PST - epublish SO - J Environ Qual. 2006 May 31;35(4):1040-8. doi: 10.2134/jeq2005.0331. Print 2006 Jul-Aug.