L. Arvola, T. Tulonen
pág. 509
Dissolved organic carbon fractions in Finnish and Maine (USA) lakes
Mark B. David, Pirkko Kortelainen, Tuija Mattsson
pág. 521
Organic compounds formed by chemical degradation of lake aquatic humic matter
Kalevi Pihlaja, Juhani Peuravuori, Kimmo Hautala
pág. 527
Concentrations and fluxes of dissolved organic carbon in drainage water from an upland peat system
E. Tipping, M. N. Jones, C. Woof, M. J. Scott
pág. 537
Natural organic matter contribution to throughfall acidity in Frenchforests
Anne Probst, Jean Luc Probst, Nathalie Fillion
pág. 547
pág. 559
L. F. Markova, O. E. Trubetskaya, O. I. Reznikova, O. A. Trubetskoj, T. A. Muranova, G. V. Afanas'eva
pág. 573
Accumulation of cadmium by green algae Chlorella vulgaris in the presence of marine humic substances
Janusz Pempkowiak, Alicja Kosakowska
pág. 583
Rates of diagenetic changes of humic substances in Baltic surface sediments
Janusz Pempkowiak, Joanna Kozuch, Monika Piotrowska-Szypryt
pág. 589
Evaluation of plankton communities in small highly humic bog lakes in Latvia
I. Druvietis, M. Klavins, L. Urtane, G. Springe
pág. 595
Properties of humic acids developed during humification process of post-harvest plant residues
Bozena Debska, Slawomir S. Gonet
pág. 603
Testing a humic speciation model by titration of copper-amended natural waters
E. Tipping, G. C. Dwane
pág. 609
The evaluation of drinking water treatment performed with HPSEC
Jukka A. Rintala, Riku Vahala, Elina Vuorio, Risto Laukkanen
pág. 617
Electrophoresis of podzol soil humic acids
Ragnar Osterberg, Ludmilla Shirshova
pág. 625
Differential thermal analysis of sedimentary humic acids in the light of their origin
Joanna Cieslewicz, Slawomir S. Gonet
pág. 629
Assessment of the changes of COD and color in rivers of Latvia during the last twenty years
Maris Klavins, Elga Apsite
pág. 637
Catalytic activity of humic substances in condensation reactions
Andris Roska, Maris Klavins, Elga Apsite
pág. 645
Masakazu Makino
pág. 653
Saad M. M. Ismail, S. S. Mabrouk, Mohamed Tawfic Ahmed
pág. 665
Degradation of naphthalene by bacterial cultures
I. M. Banat, R. Marchant, P. Nigam, D. Singh
pág. 671