The pollutants, coming to the environment of Novosibirsk suburbs from the biogenic component of atmospheric aerosols and accumulated in the snow cover of 1999-2000 have been studied. It has been found that the total protein concentration in snow was up to tens micrograms per square meter of the snow-covered surface. Living microorganisms were also found in the snow samples. A close agreement between the calculated and measured values of the total protein concentration in snow has been obtained. It was noticed that the total protein concentration in snow decreases with the distance from sources of both organic and inorganic aerosols.