Show simple item record

dc.contributor.authorKazama, S.
dc.contributor.authorAizawa, T.
dc.contributor.authorWatanabe, T.
dc.contributor.authorSarukkalige, Priyantha Ranjan
dc.contributor.authorGunawardhana, L.
dc.contributor.authorAmano, A.
dc.identifier.citationKazama, So and Aizawa, Toshiki and Watanabe, Toru and Ranjan, Priyantha and Gunawardhana, Luminda and Amano, Ayako. 2012. A quantitative risk assessment of waterborne infectious disease in the inundation area of a tropical monsoon region. Sustainability Science. 7 (1): pp. 45-54.

Flooding and inundation are annual events that occur during the rainy season in Cambodia, and inundation has a strong relationship with human health. This study simulated the coliform bacteria distribution using a hydraulic model and estimated the impact of inundation on public health using a dose–response model. The model parameters were calibrated using field survey data from Cambodia and obtained good agreement with the coliform group count distribution. The results suggest that the impact of inundation on human health is most noticeable in residential areas. The annual average risk of infection during medium-sized flood events is 0.21. The risk due to groundwater use ranges from 0.12 to 0.17 in inundation areas and reaches as high as 0.23 outside the inundation areas. The risk attributed to groundwater use is therefore higher than that for surface water use (0.02–0.06), except in densely populated areas at the city center. There is a high risk for infection with waterborne disease in residential areas, and the annual average risk during small flood events is 0.94. An assessment of possible countermeasures to reduce the risk shows that the control of inundation may bring more risk to public health in Cambodia. Shallower inundation water (<0.3 m) leads to a higher risk of infection, but if the depth is greater than 2 m, the risk is low in residential areas.The simulated results explain the spatial distributions of infection risk, which are vitally important for determining the highest priority places with relatively high risk and will be helpful for decision makers when considering the implementation of countermeasures.

dc.publisherSpringer Verlag
dc.subjectThe Mekong River
dc.subjectHydrological model
dc.subjectThe Mekong River – Concentration of coliform bacteria – Dose-response model – Hydrological model
dc.subjectConcentration of coliform bacteria
dc.subjectDose-response model
dc.titleA quantitative risk assessment of waterborne infectious disease in the inundation area of a tropical monsoon region
dc.typeJournal Article
dcterms.source.titleSustainability Science

The final publication is available at:

curtin.departmentDepartment of Civil Engineering
curtin.accessStatusOpen access

Files in this item


This item appears in the following Collection(s)

Show simple item record