Owing to the parks and environment-friendly policies, the Pavlovsk area has relatively low level of pollution. In 1978–1983 the Pavlovsk Park contained more than 360,000 trees of 54 species: 16 species of spruce, pine, larch and fir, two species of birch, two species of willow, two of basswood, oaks, elm, alder, aspen, European rowan, bird cherry, 88 shrub species, of which the dominant were yellow acacia, meadowsweet and dogwoods. In 1978, there were 71 species of birds belonging to 28 families and 9 orders. Mammals include squirrels, hares, weasels, stoats, moles, shrews, hedgehogs, red voles and muskrats. In winter, the parks are sometimes visited by fox, wild boar and moose. Amphibians and reptiles are mostly frogs, toads and lizards. There are 87 species of insects belonging to 46 families.