توجه: محتویات این صفحه به صورت خودکار پردازش شده و مقاله‌های نویسندگانی با تشابه اسمی، همگی در بخش یکسان نمایش داده می‌شوند.
۱The Effluents from St. Petersburg Influence the Environment Condition of the Baltic Sea or Not
نویسنده(ها): ،
اطلاعات انتشار: World Applied Sciences Journal، بيست و سوم،شماره۱۲، ۲۰۱۳، سال
تعداد صفحات: ۴
The article contains the results of study how effluents from Saint Petersburg main treatment facility and some other natural factors influence the trophic status of Nevskaja Guba. It is shown that deep retreatment of effluents to remove phosphorus is not enough to prevent eutrophication. Additional activities to make the situation stable are suggested. Eutrophication processes in Nevskaja Guba depend not only on biogenic substances load but substantially on hydro meteorological conditions of the water object and are mainly determined by Neva consumption and specifics of hydrodynamics. High consumption of Neva, current speeds, high turbulence and low water temperatures hinder eutrophication in the central zone of Nevskaja Guba which is the source of the main transit flow to the Gulf of Finland. Effluents from the most modern station – Southwestern treatment facilities – do not influence the trophic status in the southern part of Nevskaja Guba, the Gulf of Finland and the Baltic Sea. Poor state of environment in the whole southern area of coastal zone is an acute problem for many dozens of years. The unfavorable trophic status of south–eastern part of the water area is determined by specific hydrological conditions combined with unfavorable weather situation.
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