TY JOUR TI CONDITION AND PROSPECTS OF RESEARCHES IN THE FIELD OF PREVENTION EMERGENCIES AND DECREASE HIDDEN THE ECOLOGICAL OFFENCES CONNECTED WITH CHEMICAL POLLUTION OF NATURAL WATERS KW ecological monitoring KW emergencies KW latency ecological criminality KW an ecological security KW diversive actions JO LAW. SAFETY. EMERGENCY SITUATIONS AU Tangiev, B.B. AU Agayeva, R.E. AU Nikanorova, M.N. PY 2012 IS 2012 PB Saint-Petersburg University of State Fire Service of Emercom of Russia