Health Risk Assessment of Chromium-Accumulated Fish and Vegetables at Gulshan Lake of Bangladesh: A Case Study

Document Type : Original Research Paper


1 Institute of Surface-Earth System Science, Tianjin University, Tianjin-300072 Tianjin, China. Department of Environmental Science and Disaster Management, Noakhali Science and Technology University, Noakhali-3814, Noakhali, Bangladesh. Department of Environmental Sciences, Jahangirnagar University, Dhaka-1342 Dhaka, Bangladesh

2 Department of Environmental Sciences, Jahangirnagar University, Dhaka-1342 Dhaka, Bangladesh

3 Institute of Surface-Earth System Science, Tianjin University, Tianjin-300072 Tianjin, China.

4 HRD, Bangladesh Atomic Energy Center HQ, Dhaka-1207, Dhaka, Bangladesh


The present study evaluates health risk assessment for inhabitants who are exposed to chromium in fishes and vegetables of the Gulshan Lake. In the fish, chromium concentration has amounted to 2.2 to 149.7 mg/kg, while in vegetables leaf and vegetables stem it has been 5.6 mg/kg and 12.0 mg/kg, respectively. What is more, in sediment it has been 179.5 to 308 mg/kg and in water, 4.0 to 16.9 mg/l. Higher accumulation of chromium (149.7 mg/kg) has been found in a fish species, relatively most affordable for poor people, called Pangas (Pangasius pangasius). Therefore, due to consumption of this fish the resultant non-cancer health hazard indices to people, living nearby Gulshan Lake has been almost 10 times greater than those induced by safe average daily dosages of the respective chemical. Vegetable pathway is still safe in terms of non-carcinogenic health hazard but may be very likely to act as an additive. It is therefore important to immediately take some remedial measures to not only reclaim Gulshan Lake but prevent any further pollution also.


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