• AWWA WQTC71535
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AWWA WQTC71535

  • The Application of an Online Multi-Probe System for the Rapid Detection of Cyanobacteria in Drinking Water Sources and Treatment Plants
  • Conference Proceeding by American Water Works Association, 11/01/2009
  • Publisher: AWWA

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This powerpoint presentation begins by providing a brief overview of the situation in Quebec in 2007: Ministry of the Environment's plan 2007-2017; 194 lakes affected by cyanobacteria (CB) (MDDEP,2007);seven potable water plants were monitored and all detected cyanotoxins in raw water; and,no cyanotoxins were detected intreated water of plants. In 2008, 108 lakes were affected by CB including six water bodies, and five beaches were closed (MDDEP,2007). A literature review revealed the following: conditions correlated with cyanobacteria (CB) proliferations; cyanotoxin health risks; cyanobacterial and cyanotoxin monitoringframeworks for drinking water treatment plants (DWTP); and, conventional and novel online methods ofcyanobacterial monitoring. Study objectives were to: monitor the spatio-temporal variations ofcyanobacteria and cyanotoxins by conventional and novel online methods at two drinking water treatment plants (DWTPs) in Quebec, Canada; evaluate the correlations between conventional methods of measuring CB abundance and novel online in vivo PC fluorescence; and, validate in vivo PC fluorescence with the most appropriate cyanobacterial monitoring parameter. Research methodology included two field sites, multi-probes systems (MPS), MPS protocol, and grab sampling. Conclusions indicate that: there was high spatio-temporal variation in cyanobacterial abundance and microcystin concentration at both sites; at both DWTPs, high and significant correlations were derived between all conventional monitoring parameters and both in vivo PC fluorescence and the concentration of MC-LR; and, the most appropriate parameter to validate in vivo PC fluorescence at the two monitored DWTPs iscyanobacterial biovolume. Includes table, figure.

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