Escherichia coli concentration, multiscale monitoring over the decade 2011–2021 in the Mekong River basin, Lao PDR

Bacterial pathogens in surface waters may threaten human health, especially in developing countries, where untreated surface water is often used for domestic needs. The objective of the long-term multiscale monitoring of Escherichia coli ([E. coli]) concentration in stream water, and that of associa...

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Bibliographic Details
Published in:Earth system science data 2022-06, Vol.14 (6), p.2883-2894
Main Authors: Boithias, Laurie, Ribolzi, Olivier, Rochelle-Newall, Emma, Thammahacksa, Chanthanousone, Nakhle, Paty, Soulileuth, Bounsamay, Pando-Bahuon, Anne, Latsachack, Keooudone, Silvera, Norbert, Sounyafong, Phabvilay, Xayyathip, Khampaseuth, Zimmermann, Rosalie, Rattanavong, Sayaphet, Oliva, Priscia, Pommier, Thomas, Evrard, Olivier, Huon, Sylvain, Causse, Jean, Henry-des-Tureaux, Thierry, Sengtaheuanghoung, Oloth, Sipaseuth, Nivong, Pierret, Alain
Format: Article
Language:English
Subjects:
Analysis
Bacteria
Biodiversity
Catchment area
Catchment scale
Catchments
Climate change
Creeks & streams
Developing countries
Diarrhea
Dissolved oxygen
E coli
Earth Sciences
Electrical conductivity
Electrical resistivity
Escherichia coli
Feces
Health
Health risks
Hydrologic processes
Hydrology
Land use
LDCs
Life Sciences
Mathematical models
Numerical models
Oxidation
Oxidation-reduction potential
Oxygen
Pathogens
pH effects
Plantations
Rain
Redox potential
River basins
Rivers
Saturation
Sciences of the Universe
Sediment concentration
Sediment transport
Stream water
Surface water
Suspended sediments
Tributaries
Tropical climate
Turbidity
Water quality
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Summary:Bacterial pathogens in surface waters may threaten human health, especially in developing countries, where untreated surface water is often used for domestic needs. The objective of the long-term multiscale monitoring of Escherichia coli ([E. coli]) concentration in stream water, and that of associated variables (temperature (T), electrical conductance (EC), dissolved oxygen concentration ([DO]) and saturation (DO%), pH (pH), oxidation-reduction potential (ORP), turbidity (Turb), and total suspended sediment concentration ([TSS])), was to identify the drivers of bacterial dissemination across tropical catchments. This data description paper presents three datasets (see “Data availability” section) collected at 31 sampling stations located within the Mekong River and its tributaries in Lao PDR (0.6–25 946 km2) from 2011 to 2021. The 1602 records have been used to describe the hydrological processes driving in-stream E. coli concentration during flood events, to understand the land-use impact on bacterial dissemination on small and large catchment scales, to relate stream water quality and diarrhea outbreaks, and to build numerical models. The database may be further used, e.g., to interpret new variables measured in the monitored catchments, or to map the health risk posed by fecal pathogens.
ISSN:1866-3516
1866-3508
1866-3516
DOI:10.5194/essd-14-2883-2022