أرسل هذا في رسالة قصيرة: Monitoring and risk assessment of pesticides in a tropical river of an agricultural watershed in northern Thailand

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