Role of metal-reducing bacteria in arsenic release from Bengal delta sediments

Article Abstract:

The anaerobic metal-reducing bacteria play a key role in the mobilization of arsenic in sediments gathered from a contaminated aquifer in West Bengal. Studies provide evidence that anaerobic metal-reducing bacteria play a role in the formation of toxic, mobile As (III) in sediments from the Ganges delta, and indicate that the capacity for arsenic release is severely limited by the availability of electron donor in the sediments.

United States, River sediments, Iron bacteria, Metal-reducing bacteria

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Polluting Utopia: The idyllic reputation of a lost island community may not be wholly deserved

Article Abstract:

The ecological balance of the island in the British Isles, the Outer Hebridean outlier Hirta in the St Kilda archipelago, symbolic of a utopia, is showing that agronomic practices led to severe pollution of the arable land. The pollution arose because this small island, with only 40 acres of arable land, has supported a relatively large population of around 200 inhabitants since a long time.

Texas, Ecological balance, Utopia, Texas

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The arsenic green

Article Abstract:

The wallpaper containing poisonous arsenic pigments has been produced by a design company in the 19th century. The owner of the mining company supplying arsenic denied the concerns of the medical professionals about arsenic poisoning wallpaper colored with arsenic pigments.

United Kingdom, Converted paper products, not elsewhere classified, Wallpaper, Coated and Laminated Paper Manufacturing, Usage, Physiological aspects, Composition, Pigments

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