FEBRUARY 1996 • VOL. 30 NO. 2
ENVIRONMENTAL SCIENCE & TECHNOLOGY
FEATURES
Environment Online: A Guide to Internet Resources l rie Internet nds cirnvcci, but how VcilUciDle is this new information medium to the environments! professional? Tony Reichhardt surveys current environmental applications and future directions that are being developed.
86A POLICY ANALYSIS
Toxics Release Inventories: Opportunities for Improved Presentation and Interpretation EPA's annual Toxics Release Inventory is "an invaluable environmental information resource that is underexploited and can be misinterpreted," according to Charles Jia and his coauthors, who propose two new approaches to understand the environmental impact of TRI releases.
The U.S. Dioxin Inventory: Are There Missing Sources? Recent research suggests there are as yet undiscovered sources of dioxin emissions to the environment. Valerie Thomas and Thomas Spiro take a careful look at the data and conclude that there is no evidence for significant missing sources of dioxins.
Environmental Science & Technology, ES&T (ISSN 0013-yobA), is published monthly by the American Chemical Society at 1155 16th Street, N.W., Washington, DC 20036. Second-class postage paid at Washington, DC, and at additional mailing offices. POSTMASTER: Send address changes to Environmental Science & Technology, Membership & Subscription Services, P.O. Box 3337, Columbus, OH 43210. Canadian GST Reg. No. 127571347. 5 8 A • VOL. 30, NO. 2, 1996 / ENVIRONMENTAL SCIENCE & TECHNOLOGY / NEWS
NEWS 68A EPA considers standard for airborne fine particles 69A Science Industry opposition stops release of EPA sediment report
70A Technology DOE joins Cal/EPA technology evaluation program • Innovative technologies for Superfund cleanups
RESEARCH 72A Government New Jersey permit program cuts toxics • Impact of federal budget impasse on EPA • Canadian minister criticizes Congress • Oxygenated fuels get high-level review
75A Briefs Particulates and ozone health study • Ecosystem management
Landsat Thematic Mapper data combined with digital terrain elevation data are used to depict the visual appearance of an airshed having specified levels of pollution. 371 Chemical Interactions between Cr(VI) and Hydrous Concrete Particles C. H. Weng
63A Comment
93A New Products
Conflicts of Interest
Reference Books
64A Research Watch
94A Meeting Calendar
377 Simultaneous Sulfur Dioxide Absorption and Hydrogen Sulfide Generation in an Aqueous Solution of Sodium Sulfide Charles Q. Jia and W-K. Lu
95A Classifieds
Wastewatpr
66A EPA Watch
Annmarie Eldering, Jeffrey R. Hall, Kevin J. Hussey, and Glen R. Cass
Redox, adsorption, and precipitation reactions govern chemical interactions between chromium(VI) and concrete particles in synthetic groundwater solutions.
DEPARTMENTS
Biodegradation • Heavy Metals • Measurements • Modeling • Risk • Surface Water • Toxicology •
361 Visibility Model Based on Satellite-Generated Landscape Data
96A Consulting Services
Landfill emissions rule • Soil screening guidelines • Pollution prevention MACT • Great Lakes Water Quality Guidance • Waste permit public hearings • EPA "green label"
ESTHAG 30(2) 57A-96A / 361-724 ISSN 0013 936X
The Na2S(aa)-S02{g)-H2S(g) system in flue gas desulfurization is examined experimentally and by modeling. 385 Characterization of Antarctic Aerosol Particles Using Laser Microprobe Mass Spectrometry Keiichiro Hara, Tadashi Kikuchi, Keiichi Furuya, Masahiko Hayashi, and Yoshiyuki Fujii
Eighteen constituents and their monthly variations of Antarctic aerosol particles are determined.
392 Mineralogic Constraints on the Bioavailability of Arsenic in Smelter-Impacted Soils Andy Davis, Michael V. Ruby, Mark Bloom, Rosalind Schoof, Gary Freeman, and Paul D. Bergstrom
Physical and solubility constraints restrict arsenic bioavailability.
AT A GLANCE Aerosol analysis, Antarctic 385 Air pollution modeling 531 Air emissions and oxygenated fuel 661 Air-sampling system 444 Alachlor analysis, surface water 569 Analytical methods 548, 671 Arsenic bioavailability 392 Atmospheric visibility 361 Bioavailability estimation 422 Biodegradation, TeCA 542 Biodegradation, nickel-citrate 562 Biodegradation kinetics 605 Bioremediation, carbazole 575 Chromium (VI) reduction 463, 598 Chromium soil contamination 371 Decay rate of pollutants 586 Dioxin, global transport 555 ELISA test, atrazine and alachlor 509 Enzyme immunoassay for PCBs 695 Fisheries management 701 Floe ultrastructure 680 Flue gas desulfurization 377 Fly ash, arsenic and selenium leaching 517 Heavy metals deposition 489 Immunoassay cross-reactivity 513 Metachlor metabolite 592 Nitroaromatic compounds, adsorption 612 Nitrogen saturation 640 Organolead compounds, bioconcentration ..499 PAH apportionment study 634 Particulate matter concentrations 400 PCB atmospheric deposition 524 PCB microbial dechlorination 687 Phosphate adsorption 536 Photocatalysis, binary metal oxides 647 Photolysis of organics in air 414 Polychlorinated terphenyl analysis 473 Remediation, zero-valent iron 716 Sediment record, organics 623 Selenium and mineral sorbents 447 Soil organic matter, sorption 408 Toxicity analysis, TCDD 706 Transport processes, modeling 481 Trophic relationships 654 Water treatment, ozonation 431 Water pollution investigation 453
VOL. 30, NO. 2, 1996 / ENVIRONMENTAL SCIENCE & TECHNOLOGY / NEWS • 5 9 A
