Abstract Ambient particulate matter (PM), collected during a dust event over mid-Brahmaputra Valley of India, was characterized. The PM samples were analyzed using scanning electron microscopy–energy-dispersive X-ray spectroscopy (SEM–EDX), diffraction (XRD), and Fourier transform infrared (FTIR) techniques. SEM micrographs revealed varied shapes the PM, viz. spherical, irregular, angular, clus...

plankton and semi-plankton samples collected from twelve floodplain lakes (beels) of majuli river island of the brahmaputra river basin, upper assam reveal rich cladocera assemblage of 48 species belonging to 32 genera and 7 families. this report assumes biodiversity value as ~65.0% and ~37.0% of the species, and ~78.0% and ~72.0 of genera of the taxon known from assam state of northeast india ...

Crabs are significant invertebrates in the Subansiri River basin, one of major sub-basins Brahmaputra valley northeast India. They have immense ecological and economic value provide an alternative source income for local inhabitants. Following thirteen sites basin were surveyed to determine availability diversity crab species this region: Hatinala, Kalma river, Dikrong Senki Poma Harmuti, Ranga...

BACKGROUND The origin of the spatial variability of dissolved As concentrations in shallow aquifers of the Bengal Basin remains poorly understood. To address this, we compare here transects of simultaneously-collected groundwater and aquifer solids perpendicular to the banks of the Hooghly River in Chakdaha, India, and the Old Brahmaputra River in Araihazar, Bangladesh. RESULTS Variations in ...