Hydro-chemical assessment of fluoride and nitrate in groundwater from east and west coasts of Bangladesh and India

Metal(loid)s in tap-water from schools in central Bangladesh (Mirpur): Source apportionment, water quality, and health risks appraisals

“…Similarly, the average content of Ca (41,584 μgL −1 ) is higher than in Rangpur, Bangladesh [ 78 ], Ghana [ 80 ], and Saudi Arabia [ 81 ], but lower than in Jamalpur, Bangladesh [ 82 ], France [ 25 ], and Nigeria [ 79 ]. However, mean Mg-contents (16,034 μgL −1 ) are considerably higher compared to the reported literature cited in Table 2 : Jamalpur, Bangladesh [ 82 ], Rangpur, Bangladesh [ 78 ], France [ 25 ], Ghana [ 80 ], Nigeria [ 79 ] and Saudi Arabia [ 81 ] which is indicating the comparatively higher hardness of the studied water samples [ [83] , [84] , [85] , [86] ].…”

“…The samples in the study area satisfy the WHO margin mostly. However, an improved water supply quality monitoring system should be initiated in the Mirpur region, since a contaminant plume has been suspected in prior studies [ 5 , 6 , 83 ] and an indication of potential intrusion of toxic elements has also been addressed in this study.…”

Indexical and statistical approaches to investigate the integrated origins of elements in the sediment of Teesta River, Bangladesh: sediment quality and ecological risk assessment

“…It extracts the eigenvalues and eigenvectors from the original variables' covariance matrix. 40,41 The eigenvalues of the PCs are a measure of their associated variance, the loadings indicate the involvement of the original variables in the PCs, and the coordinates of the objects are referred to as scores. 42 PCA offers an objective method for determining indices of this kind so that data variance may be accounted for as concisely as possible.…”

Screening of potential aerobic denitrifying bacteria for nitrate removal from water

“…They reported that around 117.93 million people drink water contaminated with nitrate levels between 45-100 mg/L and 108.2 million people consume water with levels more than 100 mg/L in India. It is also reported that nitrate contamination in groundwater is a major concern in the coastal region of Bangladesh (Jannat et al, 2022).…”