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Title: Preliminary post-tsunami water quality survey in Phang-Nga province, southern Thailand.
Authors: Prapin Tharnpoophasiam
Usanee Suthisarnsuntorn
Suwalee Worakhunpiset
Prasasana Charoenjai
Witawat Tunyong
Suvannee Phrom-In
Siriporn Chattanadee
Mahidol University
Keywords: Medicine
Issue Date: 1-Dec-2006
Citation: The Southeast Asian journal of tropical medicine and public health. Vol.37 Suppl 3, (2006), 216-220
Abstract: This preliminary water quality survey was performed eight weeks after the tsunami hit Phang-Nga Province on 26 December 2004. Water samples collected from the affected area, 10 km parallel to the seaside, were compared with water samples from the control area approximately 4 km from the seaside, which the tsunami waves could not reach. These samples included 18 surface-water samples, 37 well-water samples, and 8 drinking-water samples, which were examined for microbiology and physical-chemical properties. The microbiological examinations focused on enteric bacteria, which were isolated by culture method, while physical-chemical properties comprised on-site testing for pH, salinity, dissolved oxygen (DO), conductivity and total dissolved solids (TDS) by portable electrochemical meter (Sens Ion 156). The results of the microbiological examinations showed that water samples in the affected areas were more contaminated with enteric bacteria than the control area: 45.4% of surface-water samples in the affected area, and 40.0% in the control; 19.0% of well-water samples in the affected area, and 7.7% in the control. All eight drinking-water samples were clear of enteric bacteria. Tests for physical-chemical properties showed that the salinity, pH, conductivity, and TDS of surface-water samples from the affected area were significantly higher than the control. The salinity, conductivity, and TDS of the well-water samples from the affected areas were also significantly greater than those from the control area. The surface and well water in the tsunami-affected area have been changed greatly and need improvement.
ISSN: 01251562
Appears in Collections:Scopus 2006-2010

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