Green Global
Foundation   Journal
...an emerging window for scientific research and publication across the globe

ASSESSMENT OF HEAVY METALS IN RIVER WATER, SEDIMENT AND FISH MUSSEL IN RUPSHA RIVER UNDER KHULNA DISTRICT, BANGLADESH (Pages : 1 - 5)

The present study was undertaken to determine heavy metal concentrations in water, sediment and muscles of certain freshwater fish and crustacean species of Rupsha River in Khulna region, the south western part of Bangladesh. Heavy metals concentrations were determined by Atomic Absorption Spectrophotometer. Heavy metals, those were measured from the river water, sediment and fish body were Arsenic (As), Mercury (Hg), Chromium (Cr), Cadmium (Cd) and Led (Pb). The concentrations of heavy metals were determined in six fish species namely Peneaus monodon, Gudusia chapra, Channa punctatus, Macrognathus aculeatus, Glossogobius giuris and Mystus gulio. Fish samples as well as heavy metal concentration of water and sediment were measured in six different sampling stations for three months during the year of 2016. The highest heavy metal concentration in water and sediment were observed near Khulna Ship Yard due to ship breaking activities and direct toxic chemical disposal in river water. The highest heavy metal concentration in fish among six species was found in giant tiger shrimp, Peneaus monodon (Cr: 62.81±2.55; Cd: 9.44±0.35 and Pb: 150±4.75 µg kg-1 respectively). Arsenic (As) was found in only sediment samples but Hg was not found at any station. The study further revealed that the concentrations of heavy metals in water, sediment and fish of the Rupsha River were within the permissible limit. Download