Hydro-environmental pollution of Turag river in Bangladesh

Abstract

The pollution due to minerals and anions in surface water and their settlement tendency on sediment of the Turag river has been studied. Higher concentration of potassium and phosphate ion in surface water and similar deposition on sediment has been recorded. The observed average concentration of Na, K, Cl-, PO4 3- in surface water and in surface sediment was 22.10, 13.20, 108.50, 17.80 mg/L and 1359.07, 2526.10, 37.50, 31.76 mg/kg, respectively. This high concentration of minerals and anions in surface water and sediments indicates that hidro-environment of the Turag river is badly affected.The minerals and ions are strongly correlated (r = 0.99) which implies that they come from similar sources and forcefully added to the river in a regular basis. Principal component analysis reveals that only one principal component is covering more than 99 % of cumulative variance. There are very few variations of parameters in the principal component to indicate that all parameters exert similar effect on hydro-environment and are contributing to deteriorate the ecological balance.These are supported by dendrogram analysis.Bangladesh J. Sci. Ind. Res.53(3), 161-168, 2018

Seasonal distributions and risk assessment of polychlorinated biphenyls (PCBs) in the surficial sediments from the Turag River, Dhaka, Bangladesh

“…It joins the Buriganga River near Mirpur (Dhaka) (Aktar and Moonajilin 2017;Hossain and Chowdhury 2018). It is navigable by boats throughout the year (Islam et al 2018).…”

“…Turag is one of the most polluted rivers running through west-north and north of Dhaka City (Islam et al 2018;Ferdousi et al 2020). This River is directly affected by various industries ranging from small to large scale garments, textile, pharmaceuticals, chemicals, pesticides, jute, metal industries, tobacco, ink, pulp and paper mills, food processing, tanneries, etc.…”

“…This River is directly affected by various industries ranging from small to large scale garments, textile, pharmaceuticals, chemicals, pesticides, jute, metal industries, tobacco, ink, pulp and paper mills, food processing, tanneries, etc. (Sarkar et al 2016;Aktar and Moonajilin 2017;Islam et al 2018). The heavy discharge of pollutants by the industries adjacent to the River banks causes a dangerous level of water abysmal (Begum et al 2018).…”

Evaluation of water quantity–quality, floodplain landuse, and land surface temperature (LST) of Turag River in Bangladesh: an integrated approach of geospatial, field, and laboratory analyses

“…Zakir et al [35] evaluated the pollution due to heavy metals in the waters of Midstream of Karatoa River, Bangladesh. Hydro-environmental pollution of Turag River in Bangladesh rigorously carried out by Islam et al [36]. Zaman et al [6] determined the landuse effect on the Turag River water quality.…”

Seasonal Variation of Water Quality Constituents in the Turag River

“…The government of Bangladesh has focused on industrial development from the last decades for improving living standard of mass people and keeping a constant GDP growth more than 7%. Therefore, the extreme use of water for industrial purpose exerts pressure on surface water and thereby pollutes water resources as proper effluent treatment is not imposed [6].…”