Text this: Monitoring and risk assessment of pesticides in a tropical river of an agricultural watershed in northern Thailand

 _____      ______   _    _      ___     ______   
|  __ \\   /_   _// | || | ||   / _ \\  |      \\ 
| |  \ ||   -| ||-  | || | ||  / //\ \\ |  --  // 
| |__/ ||   _| ||_  | \\_/ || |  ___  |||  --  \\ 
|_____//   /_____//  \____//  |_||  |_|||______// 
 -----`    `-----`    `---`   `-`   `-` `------`