Journal
SCIENCE OF THE TOTAL ENVIRONMENT
Volume 598, Issue -, Pages 867-880Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.scitotenv.2017.03.232
Keywords
Cyanobacteria; Cyanotoxins; Bathing waters; Guidelines; Human health risk assessment
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Cyanobacteria thrive in many aquatic environments, where they can produce cyanotoxins with different toxicological profile. Anthropic pressure and climate changes are causing the expansion in terms of time and space of their blooms, increasing the concerns for human health in several exposure scenarios. Here the update of the Italian guidelines for the management of cyanobacterial blooms in bathing water is presented. A risk-based approach has been developed according to the current scientific knowledge on cyanobacteria distribution in the Italian Lakes and on chemical, toxicological and epidemiological aspects of different cyanotoxins, summarized in the first part of the paper. Oral, dermal and inhalation exposure to cyanotoxins, during recreational activities, are individually examined, to develop a framework of thresholds and actions aimed at preventing harmful effects for bathers. Guidelines, also by comparing international guidance values and/or guidelines, provide criteria to plan environmental monitoring activities, health surveillance and public communication systems. Finally the still important scientific gaps and research needs are highlighted. (C) 2017 Elsevier B.V. All rights reserved.
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