Water of Neva within the limits of cities in 1991 was characterized as moderately - polluted, in 1992 - as polluted. Due to the large charge and fast speed of current, ability of the river to selfcleaning is great, therefore sites of dirty water at releases of sewer drains are small. The general ecological situation in St.-Petersburg is unfavorable . More than 10 years already the water blossoms in a gulf in a resort zone of our beach, in 1988 bathing of children's gardens and sanatoriums in Sestroretsk, Komarovo and other places was forbidden. Water of the Finnish gulf could appear unsafe for them in some way. The population considered the blossoming of water in a gulf to have begun because of the construction of a complex of protection from floods, which has started in 1980.

Is the dam guilty in deterioration of ecological situation of city on Neva?

The struggle of the opponents and supporters of a complex of protection from floods began on the stage of designing. As it is well known, the dam should connect northern and southern coast of the Neva latent. Approximately on this line, the construction of a strip of strengthenings, protecting approaches from the sea to St. Petersburg, was begun in the time of Peter I. It consists of 15 forts on bulk islands and plenty of stone and pile-dwellings. The seamen quite often named for fun the Neva latent as Kotlin lake. By closing a ring highway around St. Petersburg, through Lomonosov-Kronshtadt-Horskaya, the dam will transform a shallow lip into an internal urban reservoir, not only according to the name. Any intervention of the man in businesses of a nature causes changes in an environment. Its major part, but not everything, even at the closest investigation of a question, can be foreseen and taken into consideration...