Part 1: key-note presentations; investigations of pollution problems in Eastern Europe and Russia; dynamics of the industrial transformation of terrestrial ecosystems, G.A. Evdokimova; biomonitoring in Northern Bohemia mining area, Czech Republic, J. Cibulka; the environmental situation in the upper Vistula Basin (Southern Poland), K. Grodzinska; ecological problems of the Katowice administrative district; S. Godzik, et al; validation of Selected Biomarkers in Invertebrates from the Polluted Silesian Region; P. Migula, et al. 6. Genetic and Oncogenic Consequences of Chemical and Radiation Pollution of the Kuzbass and Altai Regions; E.N. Ilyinskikh, et al. 7. Using Various Biomarkers for the Estimation of the Situation after an Accident at Siberian Chemical Plant; N.N. Ilyinskikh, et al. 8. Animals of the Katowice Administrative District (KAD). Pollution in the Past and Present; K. Dmowski, et al. 9. The Use of Biomarkers in Hazard Assessment; D.B. Peakall. 10. Biomarkers in Plants; W.H.O. Ernst. 11. Biomarkers in Invertebrates. Evaluating the Effects of Chemicals on Populations and Communities from Biochemical and Physiological Changes in Individuals; L. Lagadic. 12. The Use of Biomarkers in Vertebrates; C.H. Walker. Part 2: Working Groups Reports. 1. Report of the Working Group on the Katowice Administrative District, Poland: A Review of Research Done to Date, and Recommendations for Future Research; S.W. Kennedy, et al. 2. Report of the Working Group on the Katowice Administrative District: Assessing Environmental Quality in the Upper Vistula Basin of Poland, Using Biomarkers; T.K. Collier, et al. 3. Report of the Working Group on Northern Bohemia; L. Shugart, et al. 4. Report of the Working Group on the Strategy for the Implementation of a Biomarker Biomonitoring Programme in the Kola Peninsula, Russia; J.M. Weeks, et al. Part 3: Abstracts of Posters. 1. Concentration of Heavy Metals in Selected Grasses in Relation to their Soil Content in a Heavily Polluted Area; L. Boruvka. 2. Using Biomarkers to Monitor Remedial Actions at a Subtidal Estuarine Site Severely Contaminated with Polynuclear Aromatic Hydrocarbons; T.K. Collier, M.S. Myers. 3. Heavy Metal Pollution of the Upper Silesia Region: Biomonitoring Studies of Magpie (Pica pica) Tissues; K. Dmowski. 4. Energy Metabolism in the Butterfly Parnassius appollo from Pieniny Mountains (Southern Poland) and its Possible Use for Biotope Assessment; A. Kedziorski, et al. 5. Small Mammals as Bioindicators for Terrestrial Ecosystems in Bohemia; E. Koroleva, et al. 6. Accumulation of Mutagenic Xenobiotics in Water Ecosystems with Special Reference to Lake Baikal; S.V. Kotelevtsev, et al. 7. The Situation Regarding Air Pollution in the Czech Part of Black Triangle (CZ-BT) and its Impact on Spruce Canopy Using Inner Cycling; J. Kubiznakova.