Abstract
Eutrophication and pollution of Lake Ladoga cause epidemiologic and toxicologic risks for its use as a supply of drinking water. Increased levels of nutrients (N and P) and low molecular weight organic compounds enhance microbial activity and transformations of xenobiotic compounds in the lake, and promote the formation of chlorinated compounds in drinking water purification process. Experimental studies on the toxicity of water and sediment samples from Priozersk, Pitkäranta, Petrokrepost and Volkhov Bay areas have resulted in marked blood, immune system and genetic responses in laboratory rats. Severe toxicity is also evidenced by Daphnia biotests. Epidemiological studies have revealed elevated morbidity and mortality levels in the human populations in certain regions in the environs of Lake Ladoga, with respect to a group of diseases with a potential connection with water quality, i.e. diseases of digestive organs and genitourinary system as well as malignant neoplasms.
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© 1996 Kluwer Academic Publishers
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Vorobieva, L.V., Selyuzhitskii, G.V., Chernova, G.I. (1996). Ecologic and hygienic evaluation of Lake Ladoga as a source of drinking water. In: Simola, H., Viljanen, M., Slepukhina, T., Murthy, R. (eds) The First International Lake Ladoga Symposium. Developments in Hydrobiology, vol 113. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-1655-5_21
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DOI: https://doi.org/10.1007/978-94-009-1655-5_21
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