1. Metal distribution and interaction in plant cultures on artificial soil

   • M. N. Azpiazu
   • F. Romero
   • J. M. Diaz

   OriginalPaper Pages: 1 - 26

2. Changes in light attenuation during filling, stabilization and operation of a reservoir

   • Steve W. Effler
   • Francesco B. Trama

   OriginalPaper Pages: 27 - 37

3. Atmospheric deposition to remote receptors I. Precipitation quantities from the Ilwas-network

   • A. H. Johannes
   • E. R. Altwicker

   OriginalPaper Pages: 39 - 53

4. Atmospheric deposition to remote receptors II. Temporal and spatial variation of inorganic ion species in precipitation over the Ilwas-network

   • E. R. Altwicker
   • A. H. Johannes
   • N. L. Clesceri

   OriginalPaper Pages: 55 - 70

5. Atmospheric deposition to remote receptors III. Statistical analysis of precipitation data from the ILWAS-network

   • E. R. Altwicker
   • P. E. Shanaghan
   • A. H. Johannes

   OriginalPaper Pages: 71 - 88

6. DDT residues in the River Jamuna in Delhi, India

   • H. C. Agarwal
   • P. K. Mittal
   • M. K. K. Pillai

   OriginalPaper Pages: 89 - 104

7. The density of inflows to Onondaga Lake, U.S.A., 1980 and 1981

   • Steven W. Effler
   • Emmet M. Owens

   OriginalPaper Pages: 105 - 115

8. Toxicity and biochemical responses of carp to dinitrobenzene plant effluent

   • N. Jothi Kumar
   • K. P. Krishnamoorthi
   • D. M. R. Rao

   OriginalPaper Pages: 117 - 126

9. Toxic effects of two organophosphate insecticides, monocrotophos and dichlorvos to common earthworm Lampito Mauritii (Kinberg)

   • Ch. Bharathi
   • B. V. S. S. R. Subba Rao

   OriginalPaper Pages: 127 - 130

10. Tracing faecal pollution by coprostanol and intestinal bacteria in an ice-covered finnish lake loaded with both industrial and domestic sewage

    • Sabine Düreth
    • Reimer Herrmann
    • Klaus Pecher

    OriginalPaper Pages: 131 - 149

11. Extraction of metal ions sorbed on hydrous oxides of iron(III)

    • J. Slavek
    • W.F. Pickering

    OriginalPaper Pages: 151 - 162

12. Stable sulfur isotope ratios as a tool for interpreting ecosystem sulfur dynamics

    • R. D. Fuller
    • M. J. Mitchell
    • C. T. Driscoll

    OriginalPaper Pages: 163 - 171

13. Relative importance of natural and anthropogenic proton sources in soils in The Netherlands

    • W. De Vries
    • A. Breeuwsma

    OriginalPaper Pages: 173 - 184

14. Amoebae in a waste stabilization pond system in Mexico

    • Fermin Rivera
    • Gisela Garcia
    • Patricia Bonilla

    OriginalPaper Pages: 185 - 198

15. Book reviews

    • Michael Waldichuk
    • Elmer Robinson
    • T. Viraraghavan

    BookReview Pages: 199 - 209

16. Announcement

    Announcement Pages: 211 - 211

17. Erratum

    Erratum Pages: 212 - 212