Анотація: Work dedicated to the environmental monitoring, in condition of technogenic emergency situation. Described reasons of such situation occurrence and consequences from such situations. Based on the scale of consequences classification of such situation had been presented: origination, initiation culmination and attenuation. Considered peculiarities of monitoring system and system of prognose which are used for prevention and liquidation of emergency situations. Existing methods of environmental monitoring are investigated. It is shown, for now the absence of methods for environmental monitoring are observed, in condition of technogenic emergency situations. Such methods would allow solving correspondent tasks, from the point of view of management theory. To overcome this problem, in article were proposed new methods of environmental monitoring, that are called informational and technical methods. In article presented and described their typical structure and benefits from their using.