Abstract—Unnatural phenomena of five-consecutive
typhoons in July through September 2011 caused the falling of
heavy and long duration rain. The total rainfall turning to be
streamflowed and reaching to around Bangkok about 150,000
MCM. Due to draining out of this amount of floodwater only
Chao Phraya river took very long period of time, the
government made the decision to take Mahasawad,
Phasicharoen, and Mahachai canals to transfer them to
Thachin river without any treatment before reaching to the
stream water. In order to have warning sign from floodwater
quality from unnatural typhoons in Thailand, the Royal LERD
project had been collected floodwater sample to detect physical,
chemical, and biological water quality at the areas around
northern part of Bangkok, Chao Phraya river, three-canal
watercourses (Mahasawad, Phasicharoen, Mahachai) and
Thachin river. An analyzed value of physical and chemical
quality was unpleasant because of high concentration above the
surface water quality. As well as the biological water quality,
especially microorganisms and water-born diseases was found
much more than standard values . It was no doubt that water
of Thachin river had to be contaminated all the said water
quality indicators which were rather lower quality than before
and after transferring floodwater from upper north of Bangkok
and Chao Phraya river through Mahasawad, Phasicharoen,
and Mahachai canals to mix with Thachin river water. The
above statement should be a lesson to learn of flood fighters not
taking any action in the future because it would be like getting
rid of bad thing from one place to the others on which it has
been identified as plenty of natural resources likewise Thachin
riverine systems .
Index Terms—Bacterial-type contamination, Thachin River, Bangkok flooding.
The authors are with the College of Environment, Kasetsart University, 50 Phahon Yothin Rd, Chatuchak Bangkok 10900, Thailand (e-mail: firstname.lastname@example.org).
Cite:Sathapat Saneha, Kasem Chunkao, Narouchit Dampin, and Wit Tarnchalanukit, "Bacterial-Type Contamination of Thachin River Water from Recharging Floodwater of Extreme 2011-Bangkok Flooding Disasters through the Three-Draining Canals," International Journal of Environmental Science and Development vol. 4, no. 2, pp. 243-245, 2013.