The Features of Surface Algocenoses in Anthropogenic Conditions of Urban Environment

The surface of building materials in the man-made urban environment undergo, a process of biofouling algae. The degree of damage depends on the environmental factors of the environment that are affected by the level of anthropagenic load areas. The environmental monitoring of urban areas with different functional affiliation and level of contamination is carried out. The composition of alga biocoenosis of urban buildings in areas with varying degrees of anthropogenic load is explored, most stable and sensitive kinds to the level of environmental pollution are revealed. The dependence of species diversity of algocenosis from the level of anthropogenic load territories which changes from one functional area of he city to another is investigated. Biofouling process of modeling concrete of algae under laboratory conditions allowed to determine their impact on the building material, accompanied by changes in the chemical and mineralogical composition of the surface of products. Based on microscopic examination of sample surfaces and evaluate the effectiveness of various ions leach from building materials shows the results of algal attack related to the acceleration of biodegradation of materials under the influence of aggressive metabolic products, mechanical action of neogenic crystals, creating optimal conditions for the development of subsequent aerobic microbial decomposers.