Table Of Content

Contents Vol. 26 Vol. 26, No. 1 Publisher’s Note An experimental study on the evolution and dispersion of a cloud of gas heavier than air M. Ayrault (Ecully, France), J.-L. Balint (College Park, MO, U.S.A.) and R. Morel (Ecully, France ) A diagnostic expert system for helping the operation of hazardous waste incinerators Xx. Yang and'D: Okrent (Eos Angeles, CA, US Ae) sacccccccsescascacesnrsntncsrososncaceoshesassnscrevessaseaseoseres 27 Assessment of off-normal emissions from hazardous waste incinerators. Part I. Assessment of off-normal emission frequency and duration \. 46ng¢ and ©). Onrent: (Loe Angeles: CA, WSA c ) sss cssscsccassscvasenssccceccetensatsenecsestecceecsnasescevecties 47 Assessment of off-normal emissions from hazardous waste incinerators. Part II. Assess- ment of off-normal emission intensity and total emission ¥. Zeng and B). Olerent: (es Anmelons CA; CSAs) socscccccccsssccancasccccackcesaciccaadedenscevaccessiceettiveens 63 EPA Project Summary Cleaning excavated soil using extraction agents: A state-of-the-art review R. Raghavan, E. Coles and D. Dietz (Livingston, NJ, U.S.A.) Announcement Sg a as te NTI ey ete eth rece ones veern ee ean. Pee wey) ENE OER aS. 91 Vol. 26, No. 2 Computer aided consequence analysis and some future needs R. Kakko (Tampere, Finland) Evaluation of fourteen hazardous gas models with ammonia and hydrogen fluoride field data S.R. Hanna, D.G. Strimaitis and J.C. Chang (Westford, MA, U.S.A.) ....ccecscssseseseeseeeeeees 127 A classification scheme for pipework failures to include human and sociotechnical errors and their contribution to pipework failure frequencies N.W. Hurst (Sheffield, Great Britain), L.J. Bellamy, T.A.W. Geyer and J.A. Astley (London, CEE ERO AGGTIN ooo is ieci ao cca ata caceca tots adcatacaer as even atnteven tan dtd enn ain bat oanien ceuieacaiesaesia ua eee TI 159 Small spills of heavy gas from continuous sources B. Huerzeler and T.K. Fannelop (Zurich, Switzerland ) 386 Factors influencing the spontaneous heating of low-rank coals J.C. Jones and M. Vais (Kensington, N.S.W., Australia ).............csccccsccsssssssssseescssssessessessesees Short Communication Impact speed of heavy goods vehicles P.A. Davies and F.P. Lees (Loughborough, Great Britain )...........scsessssesseceesseseeesseseeseseeeess Project Report Research on continuous and instananeous gas clouds. Part 2 M. Nielsen (Roskilde, Denmark), M. Heinrich and R. Scherwinski (Hamburg, IORIRA II Vs ock sccckssc ence cern du do su pnnvlvod un avubncey sRipyilesvuniendap >a vou aodVaoben sek TeNeseatonan aud eeuceosteseacaeenmeerente EPA Project Summary State of technology review: Soil vapor extraction systems N.J. Hutzler, B.E. Murphy and J.S. Gierke (Houghton, MI, U.S.A.) oo... eeeeseeeeeeeeeee 225 WN op nsssadcvasustcicuts ivonvvecesasoniste psv eieinvasesdencsleecduasbeds eehc sdvassl Stricaas pwas odeaaLi eUu caaea eceei aEgEe 231 PHONO VOID acs csc sceccaxscidiceenccassaieuce ies eeucusay es becuveeeNTE Eas uae atin de aa eee 235 PERN bce sccces ccna Dona Gea Sah ea cand av ues SSDSTRIESN Fe Oe aN AA GEAA SESE aaa ca Se BARN ed aKa baer ee 241 Vol. 26, No. 3 Detoxification of organic waste liquids by catalytic hydrogenation BF AGROME A DUININOS TURNY) cccosecoccssnscsucnsetnosexconseucvccssvensvoneaveoenonsccaseestcuvsewacecoeestisccasoneeacceesrneecnceeeetse a Evaluation of volumetric leak detection methods used in underground storage tanks J.W. Maresca, Jr., J.W. Starr, R.D. Roach, D. Naar, R. Smedfjeld (Mountain View, CA, U.S.A.), J.S. Farlow and R.W. Hillger (Edison, NJ, U.S.A.) .......ccsscsssssssssssssssssssssssesesescesenes 261 An anlytical model for in situ extraction of organic vapors WV AR; BROW BAIN ERCP Cbgetenn: (CEMENT BE USS SINS) ccsscads cds cdcacccccezassssvunssopsescvenntnsscescucenceeoes 301 Sensitivity analysis for power industry radionuclide air stack emissions leukemia incidence risk comparison models V.R. Prybutok (Philadelphia, PA, U.S.A.) and L.M. Gold (Beaumont, TX, U.S.A.)......... 319 Use of waste energetic materials as a fuel supplement in utility boilers C.A. Myler (Aberdeen Proving Ground, MD, U.S.A.), W.M. Bradshaw (Oak Ridge, TN, US A)end MEG. Cosmos: (West Chester: PA SUIAS Dicc cssssssiccccocsscunssesssavesaccoussssesaccosteeceanee 333 Geochemistry and soil chemistry reactions occurring during in situ vitrification J. Dragun (Berkeley, MI, U.S.A.) EPA Project Summary Fundamental approach to service life of flexible membrane liner’s (FML’s) AS. Lord,:Jr. and RUM. Koerner (Philadeiphia, PA, U:S-A:) ....<..cssisscesssosssesvosssesvsvessnsceseass 365 RR OG iain isis ies isu asaabistiwlccec acyesd eaaeven deaes eaec peese Geippeede ey WS RRP NIG otc Fonsu cess tcactseecas zeacnds nue abacenaeuenawadaosv easles eavinseaosuabexcsssueess ass baptesWaseursaceis eeevenseacuonoaeeee 381 PRE SUMS VIN ei inisisi cc ccacsds ces ash ces cues tune sie kanes Seuss nksenooowsasensoasee5 Ces UT RA GRIEG eeaReCs Ree 383