ENVIRONMENTAL SCIENCE & TECHNOLOGY 1999 Vol.33 No.14

1. A Regional Perspective on Contaminated Site Remediation-Fate of 　 Materials and Pollutants∥R.C.SCHWARZENBACH.-p2305 2. Emissions of Carbonyl Compounds　from　Various　Cookstoves　in　China ∥ 　 JUNFENG ZHANG.-p2311 3. Volatilization of Chemicals from Tap Water to Indoor Air from 　 Contaminated Water Used for Showering∥JACQUELINE MOYA.-p2321 4. Composition of Light-Duty Motor Vehicle Exhaust　Particulate　Matter　in 　 the Denver， Colorado Area∥STEVEN H.CADLE.-p2328 5. Polychlorinated Biphenyls in the Atmosphere of　Southern　Norway ∥JOHN 　 -ERIK HAUGEN.-p2340 6. DDT Metabolite Bis(Chlorophenyl)acetic Acid: The Neglected 　 Environmental Contaminant∥THOMAS HEBERER.-p2346 7. Characteriztion of Fine Particle Emissions from Burning Church Candles ∥ 　 PHILIP M.FINE.-p2352 8. Occurrence of Pesticides in Rain of the AXios River Basin， Greece∥　　 　 EMMANOUIL CHARIZOPOULOS.-p2363 9. Detection of High Molecular Weight Organic Tracers in Vegetaion Smoke　 　 Samples by High-Temperature Gas Chromatography-Mass Spectrometry∥　　　 　 VLADIMIR O.ELIAS.-p2369 10.Impact of　Temperature　on　Drinking　Water　Biofilter　Performance　and 　 Microbial Community Structure∥DEBORAH M.MOLL.-p2377 11.Soil Acidification in Southern Switzerland between 1987 and 1997: A　　 　 Case Study Based on the Critical Load Concept∥PETER BLASER.-p2383 12.Estimating the Organic Carbon Partition Coefficient and Its　Variability 　 for Hydrophobic Chemicals∥RAJESH SETH.-p2390 13.Transfer of Cadmium and Mercury to Sheep Tissues∥NICHOLAS A.BERESFORD. 　 -p2395 14.Incremental Aerosol Reactivity: Application to Aromatic and Biogenic　　 　 Hydrocarbons∥ROBERT J.GRIFFIN.-p2403 15.Toxicokinetics and Bioconcentration of Polycyclic Aromatic　Hydrocarbons 　 in Freshwater Isopods∥BERT VAN HATTUM.-p2409 16.Atrazine Degradation in Irradiated Iron/Oxalate Systems: Effects of pH　 　 and Oxalate∥MARIANNE E.BALMER.-p2418 17.Impact of Long-Term Weathering， Mobility， and Land Use on Chlordane　　 　 Residues in Soil∥MARY JANE INCORVIA MATTINA.-p242518.Release　of　Volatile　lodinated　C ↓1- C ↓4　Hydrocarbons　by　Marine 　 Macroalgae from Various Climate Zones∥BERND GIESE.-p2432 19.Factors Affecting Bank Formation during Surfactant-Enhanced 　 Mobilization of Residual NAPL∥CLINTON S.WILLSON.-p2440 20.Effects of Capillary Pressure and Use of Polymer Solutions on Dense， Non 　 -Aqueous-Phase Liquid Retention　and　Mobilization　in　a　Rough- Walled 　 Fracture∥BETTINA L.LONGINO.-p2447 21.Bacterial Tracking Using Ferrographic Separation∥P.ZHANG， W.P.JOHNSON. 　 -p2456 22.Ionizing Radiation Induced Degradation of Tetrachlorobiphenyl in 　 Transformer Oil∥MAHNAZ CHAYCHIAN.-p2461 23.Influence of particle Surfaces on the Bioavailability to Different　　　 　 Species of 2，4-Dichlorophenol and Pentachlorophenol∥N.A.DAVIES.-p2465 24.Wastewater Standards and Extraction Chemistry in Validation of 　 Microwave-Assisted EPA Method 3015A∥DIRK D.LINK.-p2469 25.Speciation of Subsurface Contaminants by Cone Penetrometry Gas 　 Chromatography/Mass Spectrometry∥ALEXANDER GORSHTEYN.-p2474 26.Spectroscopic Confirmation of Uranium(Ⅵ)-Carbonato Adsorption Complexes 　 on Hematite∥JOHN R.BARGAR.-p2481 27.Reduction of Polychlorinated Dibenzodioxins and Dibenzofurans in　　　　 　 Contaminated Muds by Mechanically Induced Combustion Reactions∥MARZIO　 　 MONAGHEDDU.-p2485 28.Design and Use of Redox-Recyclable Organometallic　Extractants　for　the 　 Cationic Radionuclides ↑137 (Cs+) and ↑90 (Sr2+) from Waste Solutions 　 ∥JENNIFER F.CLARK.-p2489