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4822370 
Technical Report 
Development and application of methodology for determining 1,2-dibromo-3-chloropropane in ambient air 
Mann, JB; Freal, JJ; Enos, HF; Danauskas, JX 
1980 
15 
5 
519-528 
HEEP COPYRIGHT: BIOL ABS. A method for determination of hexachlorobenzene in air was modified to detect fumigant/nematocide DBCP (1,2-dibromo-3-chloropropane) in air at level of 0.02 ppb (by volume). The method utilized Chromosorb 101 as a trapping medium with subsequent analysis of eluted DBCP by electron capture-gas chromatography. The procedure was tested using air flows of 1 l/min-5 l/min for sampling periods of 30 min-3 h. Recoveries of greater than 90% were obtained for DBCP levels ranging from 0.07 ppb-20 ppm. More than 90% of DBCP stored on Chromosorb 101 at ambient temperature for 1 mo. was recovered. A 1/2 acre field plot was sprayed with DBCP using the drench method. Air samples were taken from breathing zone of the applicator during mixing, spraying and clean-up procedures. Air samples were also taken periodically around the perimeter of the plot for up to 7 days after spraying. 
IRIS
• 1,2-Dibromo-3-chloropropane
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