1. Aerobic transformation of linear alkylbenzenesulphonates by mixed methane-utilizing bacteria

   • D. Hršak

   OriginalPaper Pages: 265 - 272

2. Induction of rat liver drug-metabolizing enzymes by tetrachloroethylene

   • N. Hanioka
   • H. Jinno
   • M. Ando

   OriginalPaper Pages: 273 - 280

3. Relative sensitivity of three freshwater benthic macroinvertebrates to ten contaminants

   • G. L. Phipps
   • V. R. Mattson
   • G. T. Ankley

   OriginalPaper Pages: 281 - 286

4. Acute and long-term effects of nine chemicals on the Japanese medaka (Oryzias latipes)

   • G. W. Holcombe
   • D. A. Benoit
   • R. D. Johnson

   OriginalPaper Pages: 287 - 297

5. Metal accumulation in three species of passerine birds (Emberiza cia, Parus major, and Turdus merula) subjected to air pollution from a coal-fired power plant

   • S. Llacuna
   • A. Gorriz
   • J. Nadal

   OriginalPaper Pages: 298 - 303

6. Mercury levels in seabirds from the Azores, Mid-North Atlantic Ocean

   • L. R. Monteiro
   • R. W. Furness
   • A. J. del Nevo

   OriginalPaper Pages: 304 - 309

7. Influence of metal concentrations in food on metal uptake and accumulation in sawfly larvae

   • L. Lindqvist

   OriginalPaper Pages: 310 - 313

8. Temperature effects on copper uptake and CO₂ assimilation by the aquatic moss Rhynchostegium riparioides

   • B. Claveri
   • C. Mouvet

   OriginalPaper Pages: 314 - 320

9. Selenium concentrations in the razorback sucker (Xyrauchen texanus): Substitution of non-lethal muscle plugs for muscle tissue in contaminant assessment

   • B. Waddell
   • T. May

   OriginalPaper Pages: 321 - 326

10. A field simulation of the effect of acidic rain on ion balance in a woodland salamander

    • M. P. Frisbie
    • R. L. Wyman

    OriginalPaper Pages: 327 - 333

11. Dietary exposure of mink to carp from Saginaw Bay, Michigan. 1. Effects on reproduction and survival, and the potential risks to wild mink populations

    • S. N. Heaton
    • S. J. Bursian
    • R. J. Aulerich

    OriginalPaper Pages: 334 - 343

12. The influence of salinity on the chronic toxicity of atrazine to an estuarine copepod: Implications for development of an estuarine chronic criterion

    • L. W. Hall Jr.
    • M. C. Ziegenfuss
    • D. P. Tierney

    OriginalPaper Pages: 344 - 348

13. Skeletal malformations induced by the insecticides ZZ-Aphox® and Folidol® during larval development of Rana perezi

    • R. Alvarez
    • M. P. Honrubia
    • M. P. Herráez

    OriginalPaper Pages: 349 - 356

14. Sediment toxicity in Savannah Harbor

    • P. V. Winger
    • P. J. Lasier

    OriginalPaper Pages: 357 - 365

15. An evaluation of current methods for developing sediment quality guidelines for 2,3,7,8-tetrachlorodibenzo-p-dioxin

    • T. J. Iannuzzi
    • N. L. Bonnevie
    • R. J. Wenning

    OriginalPaper Pages: 366 - 377

16. Evaluating ammonia toxicity in sewage effluent to stream macroinvertebrates: I. A multi-level approach

    • D. P. Monda
    • D. L. Galat
    • S. E. Finger

    OriginalPaper Pages: 378 - 384

17. Acute toxicity of ammonia (NH₃-N) in sewage effluent to Chironomus riparius: II. Using a generalized linear model

    • D. P. Monda
    • D. L. Galat
    • M. S. Kaiser

    OriginalPaper Pages: 385 - 390

18. Genotoxic risk assessment of drinking water consumed in the city of Tehran, Iran

    • F. Sabouni
    • A. -A. Zia'ee

    OriginalPaper Pages: 391 - 395

19. Erratum

    • G. Persoone

    Erratum Pages: 396 - 396