Geographic information system applied to the water quality assessment of Ayutthaya Province, Thailand

Paper


Supatimusro, D., Areerachakul, N. and Erdei, L.. 2011. "Geographic information system applied to the water quality assessment of Ayutthaya Province, Thailand." Ohgaki, Shinichiro, Masuko, Atsushi and Misono, Yoshihiko (ed.) 4th International Water Association Conference (IWA 2011): Toward Sustainable Water Supply and Recycling Systems. Tokyo, Japan 02 - 06 Oct 2011
Paper/Presentation Title

Geographic information system applied to the water quality assessment of Ayutthaya Province, Thailand

Presentation TypePaper
AuthorsSupatimusro, D. (Author), Areerachakul, N. (Author) and Erdei, L. (Author)
EditorsOhgaki, Shinichiro, Masuko, Atsushi and Misono, Yoshihiko
Journal or Proceedings TitleProceedings of the 4th IWA-ASPIRE Conference 2011
Number of Pages7
Year2011
Web Address (URL) of Paperhttp://www.aspire2011.org
Conference/Event4th International Water Association Conference (IWA 2011): Toward Sustainable Water Supply and Recycling Systems
Event Details
4th International Water Association Conference (IWA 2011): Toward Sustainable Water Supply and Recycling Systems
Event Date
02 to end of 06 Oct 2011
Event Location
Tokyo, Japan
Abstract

Ayutthaya is a popular tourist destination located about 76 km north of Bangkok. The climate of the province is typical of Central Thailand, comprising three (cold, hot, and rainy) seasons, with relatively small changes in average temperatures but significantly varying rainfall patterns. In this study, we present a geographic information system (GIS) used for the assessment and monitoring of pollution in the watershed. The ArcInfo-based system combines geographical, meteorological and hydrological data for multiple uses. Water quality management is based on composite water quality index and corresponding water quality classes. The chief input parameters include temperature, pH, faecal bacteria count (FCB), dissolved oxygen (DO), nitrate (NO3), total phosphates (PO4), biochemical oxygen demand (BOD), suspended solids (SS), and total solids (TS), together with population density, rainfall and land-use. The initial results of years 2008 and 2009 show that water quality derogation is strongly related to high population density in the central (new City) districts that also affect the historical City. In addition, the increased runoff of the rainy season causes significant PO4, NO3, and BOD pollution of the Pa Sak River at the northern agricultural districts.

KeywordsArcInfo; Ayutthaya; GIS; Thailand; water quality index
ANZSRC Field of Research 2020400499. Chemical engineering not elsewhere classified
401302. Geospatial information systems and geospatial data modelling
410404. Environmental management
Public Notes

Copyright © 2011 International Water Association. You may not, in any form or by any means: Adapt, reproduce, store, distribute, transmit, print, display, perform, publish or create derivative works from any part of this article (unless for personal use).

Byline AffiliationsRajamangala University of Technology, Thailand
Suan Sunandha Rajhabhat University, Thailand
Department of Agricultural, Civil and Environmental Engineering
Institution of OriginUniversity of Southern Queensland
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