The importance of aquatic food chain bioaccumulation of organic chemicals in contributing to human dose is derived. It is shown that for chemicals with log octanol water partition coefficients greater than about 3, the role of food chain transfer to fish consumed by humans becomes the more dominant route over drinking water. Modeling of aquatic food chain bioaccumulation then becomes necessary ...

for more than half a century isotopes have been employed as a powerful tool in studying various aspects of water resources in a largenumber of countries. however, in developing countries like iran the application of such techniques is in its infancy. the first research iniran was carried out in 1975 to identify the source of saline groundwaters in south iran, and the first national conference o...

In this work, the cation and anion products of the reactions between platinum clusters produced by laser ablation and the benzene molecules seeded in argon have been studied using a high-resolution reflectron time-of-flight mass spectrometer (RTOFMS). The dominant cation products are [C(6n)H(6n - k)](+) and [Pt(m)(C(6)H(6))(n)](+) complexes, while the dominant anion products are dehydrogenated ...

The characteristics of arsenic-contaminated groundwater and the potential risks from the groundwater were investigated. Arsenic contamination in groundwater was found in four villages (Vinh Tru, Bo De, Hoa Hau, Nhan Dao) in Ha Nam province in northern Vietnam. Since the groundwater had been used as one of the main drinking water sources in these regions, groundwater and hair samples were collec...

This work aims to investigate the hydrochemical characteristics and formation mechanisms of shallow groundwater in a part Nanchang section Ganfu plain. The data from 90 samples were interpreted by methods mathematical statistics, Piper diagrams, Gibbs plots, ratio graphs ions, geochemical modeling. results show that is weakly acidic, average concentration cation decrease Ca2+ > Na+ Mg2+ K+, ...

Agricultural production may cause groundwater pollution. This study investigated the characteristics of shallow pollution in a typical black land agricultural area Northeastern China and geochemical behavior major pollutants. A total 27 23 samples were collected for measuring on-site parameters components 2000 2014, respectively. The improved integrated approach was used to assess contamination...