ABSTRACT
A research program was carried out at the five different Agro Ecological Zones (AEZ) of Bangladesh, viz. Tista Meander Floodplain (FP), High Ganges FP, Low Ganges FP, Active Ganges FP and Gopalganj-Khulna Bills, during the period from January 2001 to January2002, with the aim of the determination of arsenic contamination in soil and water in located areas as well as to test tube well water sample whether these exceed the acceptable limits of Bangladesh standard of 50 μ/l. Arsenic contents in the water of Shallow tube Wells (STW) and in soil samples were collected from ten sites under five AEZs of Bangladesh. As possible consequences of contaminated soil and water were considered. Considerable number of water samples showed much high contents of arsenic than the safe level. Water samples collected from STWs showed 0.032 to 203.9 μg/l arsenic. Out of 428 water samples 155 are unsafe (>10-<50>20 μg/kg). The distribution of arsenic in the water and soil samples indicates that there may be some possibility of its entering in to the food chain.
Key word: Agro Ecological Zone (AEZ), Arsenic, Contamination, Toxic, Food chain.
A research program was carried out at the five different Agro Ecological Zones (AEZ) of Bangladesh, viz. Tista Meander Floodplain (FP), High Ganges FP, Low Ganges FP, Active Ganges FP and Gopalganj-Khulna Bills, during the period from January 2001 to January2002, with the aim of the determination of arsenic contamination in soil and water in located areas as well as to test tube well water sample whether these exceed the acceptable limits of Bangladesh standard of 50 μ/l. Arsenic contents in the water of Shallow tube Wells (STW) and in soil samples were collected from ten sites under five AEZs of Bangladesh. As possible consequences of contaminated soil and water were considered. Considerable number of water samples showed much high contents of arsenic than the safe level. Water samples collected from STWs showed 0.032 to 203.9 μg/l arsenic. Out of 428 water samples 155 are unsafe (>10-<50>20 μg/kg). The distribution of arsenic in the water and soil samples indicates that there may be some possibility of its entering in to the food chain.
Key word: Agro Ecological Zone (AEZ), Arsenic, Contamination, Toxic, Food chain.
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