Maleeya KruatrachueC. SumritdeeP. PokethitiyookS. SinghakaewMahidol University. International College. Science Division.2015-09-042018-04-052015-09-042018-04-0520152011Bull Environ Contam Toxico. Vol. 86, No.6 (2011), 610-614https://repository.li.mahidol.ac.th/handle/20.500.14594/10483Pomacea canaliculata were exposed experimentally to contaminated sediments from a tributary of the Mae Klong River, Thailand, for 3 months. The highest concentration of Cr, Zn and Fe accumulated in the digestive gland while the gill exhibited the highest concentration of Cu. In addition, histopathological changes (increased mucus vacuoles, loss of cilia, dilation of cells in the epithelial cells of digestive tract organs, and an increase in the number of dark granules in the digestive cells) were observed. The gill exhibited loss of cilia, wider hemolymph space, and degeneration of columnar epithelial cells.engMahidol UniversityContaminated sedimentsHeavy metalsHistopathologyPomacea canaliculataArticleSpringer Link online