Microbial Contamination Detection in Water Resources: Interest of Current Optical Methods, Trends and Needs in the Context of Climate Change

Aude-Valérie Jung, Pierre Le Cann, Benoit Roig, Olivier Thomas, Estelle Baurès and Marie-Florence Thomas
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Aude-Valérie Jung: School of Environmental Engineering (EME), Campus de Ker Lann, Avenue Robert Schuman, Bruz 35170, France
Pierre Le Cann: EHESP Rennes, Sorbonne Paris Cité, Avenue du Professeur Léon Bernard-CS 74312, Rennes Cedex 35043, France
Benoit Roig: EHESP Rennes, Sorbonne Paris Cité, Avenue du Professeur Léon Bernard-CS 74312, Rennes Cedex 35043, France
Olivier Thomas: EHESP Rennes, Sorbonne Paris Cité, Avenue du Professeur Léon Bernard-CS 74312, Rennes Cedex 35043, France
Estelle Baurès: EHESP Rennes, Sorbonne Paris Cité, Avenue du Professeur Léon Bernard-CS 74312, Rennes Cedex 35043, France
Marie-Florence Thomas: School of Environmental Engineering (EME), Campus de Ker Lann, Avenue Robert Schuman, Bruz 35170, France

IJERPH, 2014, vol. 11, issue 4, 1-19

Abstract: Microbial pollution in aquatic environments is one of the crucial issues with regard to the sanitary state of water bodies used for drinking water supply, recreational activities and harvesting seafood due to a potential contamination by pathogenic bacteria, protozoa or viruses. To address this risk, microbial contamination monitoring is usually assessed by turbidity measurements performed at drinking water plants. Some recent studies have shown significant correlations of microbial contamination with the risk of endemic gastroenteresis. However the relevance of turbidimetry may be limited since the presence of colloids in water creates interferences with the nephelometric response. Thus there is a need for a more relevant, simple and fast indicator for microbial contamination detection in water, especially in the perspective of climate change with the increase of heavy rainfall events. This review focuses on the one hand on sources, fate and behavior of microorganisms in water and factors influencing pathogens’ presence, transportation and mobilization, and on the second hand, on the existing optical methods used for monitoring microbiological risks. Finally, this paper proposes new ways of research.

Keywords: optical methods; heavy rainfall; colloids; turbidity; pathogens (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2014
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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