Off-Site Air Monitoring Following Methyl Bromide Chamber and Warehouse Fumigations and Evaluation of the Industrial Source Complex—Short Term 3 Air Dispersion Model

Barry, Terrell; Segawa, Randy; Wofford, P.; Ganapathy, C.

doi:10.1021/bk-1997-0652.ch014

Cited by 3 publications

(3 citation statements)

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“…Two regulatory approaches were used to obtain the volatilization rate. A back-calculation method using the Industrial Source Complex Short-Term model (ISCST3), , has been extensively used for regulatory decisions by the California Department of Pesticide Regulations (CDPR) since the 1990s . A different air dispersion model, CALPUFF, was also used.…”

Section: Experimental Methodsmentioning

confidence: 99%

Emissions of 1,3-Dichloropropene and Chloropicrin after Soil Fumigation under Field Conditions

Yates

Ashworth

Zheng

et al. 2015

J. Agric. Food Chem.

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Soil fumigation is an important agronomic practice in the production of many high-value vegetable and fruit crops, but the use of chemical fumigants can lead to excessive atmospheric emissions. A large-scale (2.9 ha) field experiment was conducted to obtain volatilization and cumulative emission rates for two commonly used soil fumigants under typical agronomic practices: 1,3-dichloropropene (1,3-D) and chloropicrin. The aerodynamic method and the indirect back-calculation method using ISCST3 and CALPUFF dispersion models were used to estimate flux loss from the treated field. Over the course of the experiment, the daily peak volatilization rates ranged from 12 to 30 μg m(-2) s(-1) for 1,3-D and from 0.7 to 2.6 μg m(-2) s(-1) for chloropicrin. Depending on the method used for quantification, total emissions of 1,3-D and chloropicrin, respectively, ranged from 16 to 35% and from 0.3 to 1.3% of the applied fumigant. A soil incubation study showed that the low volatilization rates measured for chloropicrin were due to particularly high soil degradation rates observed at this field site. Understanding and quantifying fumigant emissions from agricultural soil will help in developing best management practices to reduce emission losses, reducing adverse impacts to human and ecosystem health, and providing inputs for conducting risk assessments.

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Section: Experimental Methodsmentioning

confidence: 99%

Emissions of 1,3-Dichloropropene and Chloropicrin after Soil Fumigation under Field Conditions

Yates

Ashworth

Zheng

et al. 2015

J. Agric. Food Chem.

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show abstract

“…MSLUG=0). In addition to CALPUFF, the Industrial Source Complex Short Term model (ISCST3), which is currently the preferred approach used by California Department of Pesticide Regulations (CDPR), was used for back-calculating fumigant emission rate (Ross et al, 1996;Barry et al, 1997;CDPR, 2008). Even though Gaussian plume air dispersion models are known to have limitations, which include errors associated with changing meteorology and errors related to near-and far-field distance effects, etc.…”

Section: Methods For Measuring the Emission Rate From Soilmentioning

confidence: 99%

“…Regulatory approaches have also been used to calculate fumigant emission rates by fitting air dispersion models to measurements of the air concentration collected around a treated field. For example, the California Department of Pesticide Regulations (CDPR) continues to use the Industrial Source Complex Short Term model (ISCST3) (Ross et al, 1996;Barry et al, 1997) for calculating emission rates for regulatory purposes (CDPR, 2008). EPA recently replaced ISCST3 with AERMOD for regulatory use.…”

Section: Introductionmentioning

confidence: 99%

Effect of deep injection on field-scale emissions of 1,3-dichloropropene and chloropicrin from bare soil

Yates

Ashworth

Zheng

et al. 2016

Atmospheric Environment

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Measured and predicted airshed concentrations of methyl bromide in an agricultural valley and applications to exposure assessment

Honaganahalli

Seiber

2000

Atmospheric Environment

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Off-Site Air Monitoring Following Methyl Bromide Chamber and Warehouse Fumigations and Evaluation of the Industrial Source Complex—Short Term 3 Air Dispersion Model

Cited by 3 publications

References 0 publications

Emissions of 1,3-Dichloropropene and Chloropicrin after Soil Fumigation under Field Conditions

Emissions of 1,3-Dichloropropene and Chloropicrin after Soil Fumigation under Field Conditions

Effect of deep injection on field-scale emissions of 1,3-dichloropropene and chloropicrin from bare soil

Measured and predicted airshed concentrations of methyl bromide in an agricultural valley and applications to exposure assessment

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