The authors consider the feasibility of creating publicly available information resources and services that provide data about an ecological situation and degree of ecological contamination of concrete region. An Internet resource for information support of users on environmental pollution issues, which is based on the Microsoft Bing Maps map service and Silverlight plugin, is described. There was shown that application of given technologies allows to use multimedia, graphic arts, animation and interactivity in one software platform. Text, contained in the Silverlight applications, is accessible for the searching systems. The described application collects data on the ecological state of the environment in a specific region in the amount necessary for its analysis and decision-making on environmental issue.