Optical water types (OWTs) were identified from an in situ dataset of concomitant biogeochemical and optical parameters acquired the Amazon River its tributaries, Lower region, at different hydrological conditions 2014 to 2017. A seasonal bio-optical characterization was performed. The k-means classification applied normalized reflectance spectra (rn(λ)), allowing identification four OWTs. An i...

Nepheloid layers with elevated concentrations of suspended particulate matter (SPM) are found throughout the world's oceans. They generated by both natural processes, involving resuspension seabed sediment bottom currents, and anthropogenic due to trawling, dredging in future potentially deep-sea mining. These nepheloid represent pathways lateral SPM transport, including lithogenic biogenic sed...

For centuries, many Mediterranean catchments were covered with vineyards in which copper was widely applied to protect grapevines against fungus. In the Mediterranean-type flow regime, brief and intense flood events increase the stream water discharge by up to 10 times and cause soil leaching and storm runoff. Because vineyards are primarily cultivated on steep slopes, high Cu fluxes are discha...

Particulate matter is one of the most important indoor air pollutants involved in a number of adverse health effects, such as premature deaths and increased mortality of infants and other parts of sensitive population. This paper focuses on investigation of metal substances of suspended as well as settled particulate matter in indoor environment. The monitoring of particulate matter concentrati...

Environmental impact assessment of liquid rocket motor exhaust obtained due to mainly liquid propellant combustion have been highlighted. Exhaust product analysis has been carried out theoretically by computer software NASA CEC -71 to identify toxic emissions of rocket combustion. In the present study a high volume Air Samplers (APM-430) was deployed at predetermined locations near launch pad f...

Arctic coasts, which feature land-ocean transport of freshwater, sediments, and other terrestrial material, are impacted by climate change, including increased temperatures, melting glaciers, changes in precipitation runoff. These trends assumed to affect productivity fjordic estuaries. However, the spatial extent temporal variation freshwater-driven darkening fjords remain unresolved. The pres...

An analytical method was developed for the determination of tetrabromobisphenol A (TBBPA), 3,3',5,5'-tetrabromobisphenol-A-monomethyl ether (MM-TBBPA) and 3,3',5,5'-tetrabromobisphenol-A-dimethyl ether (DM-TBBPA), and its valid application on fish muscle matrix (bream and sole), suspended particulate matter (SPM) and surface sediment layer samples, using only 0.5 g sample material, is demonstra...

The downward flux of sinking particles is a prominent Hg removal and redistribution process in the ocean; however, it not well-constrained. Using data from three U.S. GEOTRACES cruises including Pacific, Atlantic, Arctic Oceans, we examined mercury partitioning coefficient, K d , water column. suggest that varies widely over ocean basins. We also investigated effect particle concentration compo...

Pine pollen is a very important component of the marine environment: it valuable source both carbon and macro- microelements, also major food resource for many organisms. Its characteristic optical properties distinguish from other suspended particulate matter (SPM), but can distort measurements latter. Hence, affects range sea water as well number key biogeochemical processes taking place in e...

The geochemistry of the suspended particulate matter (SPM) collected during the monsoon was determined to identify the sources of SPM and to understand the physicochemical processes in the Mandovi and Zuari river estuaries. The concentrations of SPM decrease seaward in both estuaries, but are relatively high at bay stations. Kaolinite is the most dominant clay mineral in the upstream of both ri...