Polycyclic aromatic hydrocarbons (PAHs) are detected in the snow cover of the Southern coast of Lake Baikal. Pollution of the snow cover is found to be of local in character. Long winter (150-200 days) and small areas of the spread of pollutants lead to high level of PAH accumulation near the sources of PAH emission. The maximum number of PAHs (11 compounds classified as main ecotoxicants) is found near Slyudyanka where the mean total accumulation is 380 mg/m2 for accumulation rates of benz[a]pyrene between 0.01-1.6 mg/m2 per week and fluoranthene between 0.5-12.6 mg/m2 per week.