Opportunistic pathogenic mushrooms as the parameter of city medium sanitary state

Are executed mycological researches of a snow cover, the air environment, poplar down, soils in Blagoveshchensk. Results have shown, that the mycobiota structure changes on seasons and is formed de-pending on a level of pollution of environment by heavy metals. During winter-spring period in air sur-face layer in industrial regions is opportunistic-pathogenic kinds (A. niger) prevailed. In soils with a high level of pollution and the low maintenance of organic substance microscopic mushrooms showed the maximal toxicity and suppressed seeds germination and development of sprouts on 30-100%. More than 50% of the allocated mushrooms have shown expressed lipase and protease activity, ability to grow at 37îC. At the weakened immune status they can be potentially dangerous to the person. For an estimation of a sanitary state of city ecosystems and preventions mycotic complications in groups of high risk it is necessary to spend mycotic monitoring of toxigeneous and opportunistic-pathogenic kinds in soils and the air environment not only large, but also small cities and technogenic territories.