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| 008 | 200831s2018 th n m|rtt |0 0 eng d | ||
| 035 | _a.b12309436 | ||
| 099 | 9 | _aAIT Thesis no.UWEM-18-02 | |
| 100 | 1 | _aMutua, Rhoda Mutanu | |
| 245 | 1 | 0 |
_aHealth risk of waterborne infection in contaminated urban floodwater : _bthe case study of Sukhumvit in Bangkok, Thailand |
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_aPathum Thani, Thailand : _bAsian Institute of Technology, _c2018 |
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_a1 online resource (84 leaves) : _bill. (some col.) |
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_aThesis ; _vno. UWEM-18-02 |
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| 500 | _aA thesis submitted in partial fulfilment of the requirements for the degree of Master of Science in Urban Water Engineering and Management Jointly offered by Asian Institute of Technology, Thailand and UNESCO - IHE, Delft, the Netherlands | ||
| 502 | _aThesis (M. Sc.) - Asian Institute of Technology - UNESCO-IHE, 2018 | ||
| 520 | _aExtreme rain events may lead to sewer overflows which when mixes with surface and drinking water contaminate and increases the level of pathogen concentration in it. This poses a great risk to public health especially when individuals are exposed to contaminated water resulting in water - borne infectious diseases, which is a global challenge. However, it is still unclear the extent to which the infections pose a risk to public health. Th is study analysed flooding and reported diarrhoea cases in Sukhumvit, Thailand. The results showed a close relationship between diarrhoea and rainfall events. An average of 575 more diarrhoea cases was reported during wet months as compared to dry months w ith population - based incidence rates of 809 cases per 100,000 people. The study further looked into the land - cover change in the area for the years 1988, 2002 and 2015 using Landsat images obtained from USGS website. The results depicted the highest change happened in 1988 - 2002 with an increase of urban areas from 1533 ha to 2453 ha and vegetation decreased from 1873ha to 964 ha. The rate of change was - 3.5% for vegetation cover and 4.3% for urban areas during the period 1988 - 2002. Vegetation cover decrease d continuously up to 2015 to 605 ha with urban areas increasing continuously to 2824 ha. The study used 1D Hydrodynamic Advection - Dispersion model to simulate the dispersion of faecal coliform concentration in the drainage network. The results depict high er concentrations for dry weather flows and a large dilution of concentration on onset of a rainfall event resulting in drop of the concentration. This is due to the large amounts of runoff generated. The study further coupled 1D/2D Hydrodynamic Advection - Dispersion model to simulate the overland flow along the streets. The results present maximum flood depth of 0.478m, 118 minutes maximum flood duration and 1 . 74 *10^ 5 MPN/100ml concentration of faecal coliform. Most of the areas indicate low hazard of infe ction from waterborne pathogens. During non - peak hours the general risk in most areas is low since the number of people along the streets is low whereas d uring peak hours the risk in most areas is medium with some parts recording high risk | ||
| 650 | 0 |
_aWaterborne infection _zThailand _zBangkok |
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| 650 | 0 |
_aUrban health _zThailand _zBangkok |
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| 650 | 0 |
_aFloods _zThailand _zBangkok |
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| 700 | 0 |
_aSutat Weesakul, _eChairperson |
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| 700 | 1 |
_aVojinovic, Zoran, _eCo-chairperson |
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| 700 | 1 |
_aTorres, Arlex Sanchez, _eExamination committee |
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| 700 | 0 |
_aThammarat Koottatep, _eExamination Committee |
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| 700 | 1 |
_aShrestha, Sangam, _eExamination Committee |
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| 710 | 2 |
_aNetherlands Fellowship Program (NFP), _eScholarship donor |
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| 810 | 2 |
_aAsian Institute of Technology. _tThesis ; _vno. UWEM-18-02 |
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_3Full-Text _uhttp://203.159.5.9/ait-thesis/detail.php?q=B04280 |
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