The sampling location was designed at agriculture area at Medan and Karo for Sumatera Utara, Cianjur and Karawang (Jawa Barat), Dieng (Jawa Tengah) and Batu (Jawa Timur). Matrix samples are water from the river, sediment and soil.monitoring was focused on Aldrin, Heptaklor, Heptaklor epoksi...