Editor: Anisimov О.А., Dr. Geo., State Institute for Hydrology, St.Petersburg, Russia Team of Contributors: Anisimov О.А., Dr. Geo., State Institute for Hydrology, St.Petersburg, Russia Belolutskaya M.А., Cand. Geo., State Medical University, St.Petersburg, Russia Instanes А., Ph.D., Instanes Consulting, Bergen, Norway Kokorev V.A., St.Petersburg State University, St.Petersburg, Russia Oberman N.G., Dr. Geo. & Min., ZAO MIREKO Mining and Geology Company for Mineral Resources of the Komi Republic, Syktyvkar, Russia Reneva S.A., State Institute for Hydrology, St.Petersburg, Russia Strelchenko Y.G., St.Petersburg State University, St.Petersburg, Russia Streletsky D., University of Delaware, Newark, USA Shiklomanov N.I., Ph.D, G.Washington University, Washington, USA