Author(s): Yusuke Horiuchi; Takuya Matsuura; Taichi Tebakari; Sanit Wongsa
Linked Author(s):
Keywords: No Keywords
Abstract: The purpose of this study was to assess seasonal changes in river water quality and the current state of salinity intrusion in the lower Chao Phraya River, Thailand. We conducted periodic water quality observations and water quality analyses for a period of more than 1 year, beginning in August 2016. We also analyzed river waterquality using automatic water monitoring data from the Metropolitan Waterworks Authority (MWA). We found only slight seasonal and longitudinal changes in F, PO, K, Mg, and Ca concentrations in the river water. Electric conductivity (EC) showed characteristic seasonal changes throughout the year, varying with significant water level changes between the rainy and dry seasons. Adjustment of discharge volume by the Chao Phraya Dam greatly restricted the range of saltwater upstream, in turn greatly influencing seasonal changes in water quality and longitudinal changes in the river.
Year: 2018