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   Physico-chemical analysis of the bottled drinking water available in the Dhaka city of Bangladesh  
   
نویسنده alam m.f. ,dafader n.c. ,sultana s. ,rahman n. ,taheri t.
منبع journal of materials and environmental science - 2017 - دوره : 8 - شماره : 6 - صفحه:2076 -2083
چکیده    Nowadays quality and suitability of water are of great concern because of various water borne disease and fatal unhealthy impacts on human health. such concern is one of the reasons of opening of bottled water in bangladesh. public belief that bottled water is free from germs and unhealthy entities. as bottled water is marketed by various companies,it is essential to check whether these waters are really safe for public health or not. convinced on it,the present study has investigated the physico-chemical properties of the bottled drinking water available in the dhaka city of bangladesh. the purpose of this study is to investigate the physico-chemical property of bottled drinking water currently available in dhaka city,bangladesh. six different branded water samples were collected from market for this purpose. the investigated parameters were mainly- ph,electrical conductivity (ec),total dissolve solid (tds),dissolve oxygen (do),and total hardness (th) accompanying with,chloride (cl-),nitrate (no3 -),sulphate (so4 2-),iron (fe2+),calcium (ca2+) and magnesium (mg2+) ions using standard analytical techniques available in the laboratory. it was observed that the concentration of like parameter is quite different from sample to sample. the parameter values found to be in the range of ph (6.11-6.83),ec (38.4-493.0 μs/cm),tds (25.0-295.80 mg/l),do (6.88-8.76 mg/l),th (1.5-228.0 mg/l),cl- (0.24-2.69 mg/l),no3 - (0.11-2.98 mg/l),so4 2- (0.04-110 mg/l),fe2+ (2.25-3.2 mg/l),ca2+ (4.90-17.01 mg/l) and mg2+ (0.25-7.27 mg/l. the findings are informing that except the ph,do and fe2+ values,all other parameter values are quite low and appeared within the world health organization (who) and bangladesh drinking water quality standard (bdwqs) limit. © 2017,university of mohammed premier oujda morocco.
کلیدواژه Atomic absorption spectrophotometer; BDWQS and WHO standards; Bottled drinking water; Quality parameters; UV-VIS spectrophotometer
آدرس institute of nuclear science and technology,atomic energy research establishment,p. o. box-3787, Bangladesh, institute of nuclear science and technology,atomic energy research establishment,p. o. box-3787, Bangladesh, institute of nuclear science and technology,atomic energy research establishment,p. o. box-3787, Bangladesh, institute of nuclear science and technology,atomic energy research establishment,p. o. box-3787, Bangladesh, dept. of genetics and plant breeding,bangabandhu sheikh muzibur rahman agricultural university, Bangladesh
 
     
   
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