||Evaluation of collection media for low levels of airborne pesticides /
Rhoades, John W. ;
Johnson., Donald E.
||Southwest Research Inst., San Antonio, Tex.;Health Effects Research Lab., Research Triangle Park, N.C.
|| U.S. National Technical Information Service,
||EPA 600/1-77-050; EPA-68-02-2235
Gas analysis ;
Gas detectors ;
Gas chromatography ;
Chemical analysis ;
Performance evaluation ;
Design criteria ;
Polyurethane resins ;
Air pollution ;
Chlorine organic compounds ;
Organic phosphates ;
Air pollution detection ;
Air pollution sampling ;
Polychlorinated biphenyls ;
Chromosorb 102 ;
||Region 3 Library/Philadelphia, PA
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||viii, 129 pages : illustrations.
Polyurethane foam plugs, Chromosorb 102, and Tenax GC have all been found to be better sorbents than cottonseed oil for high volume collection of airborne chlorinated and organophosphate pesticides and polychlorinated biphenyls. None of these were satisfactory for the recovery of carbofuran or carbaryl. A new high volume collecting module concept capable of use with polyurethane foam, porous polymer beads, liquid coated glass beads, or other solids was developed. The entire collector is Soxhlet extracted and no disassembly is required. The collector-extractor is ready for reuse as soon as residential solvent is removed.
"Prepared for Health Effects Research Lab, Research Triangle Park, NC." "Contract No. 68-02-2235." Includes bibliographical references.