1. Editorial

   • Richard J. Wenning

   OriginalPaper 01 October 1998 Pages: 369 - 369

2. Human Cell Line Toxicity of Binary and Ternary Chemical Mixtures in Comparison to Individual Toxic Effects of Their Components

   • G. Malich
   • B. Markovic
   • C. Winder

   OriginalPaper 01 October 1998 Pages: 370 - 376

3. Spatial and Temporal Trends of Paraquat, Diquat, and Difenzoquat Contamination in Water from Marsh Areas of the Valencian Community (Spain)

   • M. Fernández
   • M. Ibáñez
   • J. Mañes

   OriginalPaper 01 October 1998 Pages: 377 - 384

4. The Environmental Occurrence of Herbicides: The Importance of Degradates in Ground Water

   • D. W. Kolpin
   • E. M. Thurman
   • S. M. Linhart

   OriginalPaper 01 October 1998 Pages: 385 - 390

5. Organophosphate and Carbamate Insecticides in Agricultural Waters and Cholinesterase (ChE) Inhibition in Common Carp (Cyprinus carpio)

   • S. J. Gruber
   • M. D. Munn

   OriginalPaper 01 October 1998 Pages: 391 - 396

6. Photolysis of Phloxine B in Water and Aqueous Solutions

   • L. Wang
   • W.-F. Cai
   • Q. X. Li

   OriginalPaper 01 October 1998 Pages: 397 - 403

7. Influence of Trophic Status on the Toxic Effects of a Herbicide: A Microcosm Study

   • J. R. Pratt
   • R. Barreiro

   OriginalPaper 01 October 1998 Pages: 404 - 411

8. Characterization of Organotin-Resistant Bacteria from Boston Harbor Sediments

   • A. Pain
   • J. J. Cooney

   OriginalPaper 01 October 1998 Pages: 412 - 416

9. Sensitivity to Copper in a Ciliate as a Possible Component of Biological Monitoring in the Lagoon of Venice

   • O. Coppellotti

   OriginalPaper 01 October 1998 Pages: 417 - 425

10. The Toxicity of Margosan-O, a Product of Neem Seeds, to Selected Target and Nontarget Aquatic Invertebrates

    • I. M. Scott
    • N. K. Kaushik

    OriginalPaper 01 October 1998 Pages: 426 - 431

11. The Acute Toxicity of Lindane to Hyalella azteca and the Development of a Sublethal Bioassay Based on Precopulatory Guarding Behavior

    • S. J. Blockwell
    • S. J. Maund
    • D. Pascoe

    OriginalPaper 01 October 1998 Pages: 432 - 440

12. Chronic Effects of the Herbicide Diuron on Freshwater Cladocerans, Amphipods, Midges, Minnows, Worms, and Snails

    • A. V. Nebeker
    • G. S. Schuytema

    OriginalPaper 01 October 1998 Pages: 441 - 446

13. Heavy Metals Alter the Survival, Growth, Metamorphosis, and Antipredatory Behavior of Columbia Spotted Frog (Rana luteiventris) Tadpoles

    • H. Lefcort
    • R. A. Meguire
    • W. F. Ettinger

    OriginalPaper 01 October 1998 Pages: 447 - 456

14. Heavy Metals Inhibit Limb Regeneration in Horseshoe Crab Larvae

    • T. Itow
    • T. Igarashi
    • R. E. Loveland

    OriginalPaper 01 October 1998 Pages: 457 - 463

15. Altered Growth and Metabolism of an Estuarine Shrimp (Palaemonetes pugio) During and After Metamorphosis onto Fenvalerate-Laden Sediment

    • C. L. McKenney, Jr.
    • D. E. Weber
    • M. A. MacGregor

    OriginalPaper 01 October 1998 Pages: 464 - 471

16. A Study of the Lethal and Sublethal Toxicity of Polyphase P-100, an Antisapstain Fungicide Containing 3-Iodo-2-Propynyl Butyl Carbamate (IPBC), on Fish and Aquatic Invertebrates

    • A. P. Farrell
    • E. Stockner
    • C. J. Kennedy

    OriginalPaper 01 October 1998 Pages: 472 - 478

17. Acute 2,4-D Poisoning in Tench (Tinca tinca L.): Lesions in the Hematopoietic Portion of the Kidney

    • L. Gómez
    • J. Masot
    • V. Roncero

    OriginalPaper 01 October 1998 Pages: 479 - 483

18. Behavioral Responses to Atrazine and Diuron in Goldfish

    • P. Saglio
    • S. Trijasse

    OriginalPaper 01 October 1998 Pages: 484 - 491

19. Contaminants in Eggs of Colonial Waterbirds and Hepatic Cytochrome P450 Enzyme Levels in Pipped Tern Embryos, Washington State

    • L. J. Blus
    • M. J. Melancon
    • C. J. Henny

    OriginalPaper 01 October 1998 Pages: 492 - 497

20. Subchronic Dietary Toxicity of Strychnine: Bobwhite Quail Are Less Sensitive than Mallard Ducks

    • R. T. Sterner
    • C. A. Pedersen
    • M. J. Goodall

    OriginalPaper 01 October 1998 Pages: 498 - 505

21. Retrospective Study of the Diagnostic Criteria in a Lead-Poisoning Survey of Waterfowl

    • W. N. Beyer
    • J. C. Franson
    • L. Sileo

    OriginalPaper 01 October 1998 Pages: 506 - 512

22. Subacute and Reproductive Effects in Mink from Exposure to Fusarium fujikuroi Culture Material (M-1214) Containing Known Concentrations of Moniliformin

    • M. K. Morgan
    • S. J. Bursian
    • R. J. Aulerich

    OriginalPaper 01 October 1998 Pages: 513 - 517

23. Age-Dependent Accumulation of Heavy Metals in Baikal Seal (Phoca sibirica) from the Lake Baikal

    • I. Watanabe
    • S. Tanabe
    • R. Tatsukawa

    OriginalPaper 01 October 1998 Pages: 518 - 526

24. Lifetime Health Risk Assessment from Exposure of Recreational Users to Polycyclic Aromatic Hydrocarbons

    • M. Hussain
    • J. Rae
    • P. Kauss

    OriginalPaper 01 October 1998 Pages: 527 - 531

25. Assessment of Asbestos Burden in the Placenta and Tissue Digests of Stillborn Infants in South Texas

    • A. K. Haque
    • D. M. Vrazel
    • T. Uchida

    OriginalPaper 01 October 1998 Pages: 532 - 538

26. Exposure to Methyl Bromide During Greenhouse Fumigation on Crete, Greece

    • J. A. F. de Vreede
    • J. den Boeft
    • J. J. van Hemmen

    OriginalPaper 01 October 1998 Pages: 539 - 547