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The concentration and chemical fractionation of globally alarming six heavy metals (Cr, Ni, Cu, As, Cd and Pb) were measured in surface water and sediment of an urban river in Bangladesh.

The decreasing trend of metals were observed in water as Cr Cd.

The major part of the talk will be on the discovery of Hang Son Doong a truly unique cave hidden until 2009 deep in the karst massif.

The talk will show how the cave was found and explored after years of searching this remote area.

The level of studied metals exceeded the safe limits of drinking water, indicated that water from this river is not safe for drinking and/or cooking purposes.

However, the investigated metals showed low mobility except for Cd and Pb which could pose a severe threat to the aquatic environment.

Contamination factor (CF) and geoaccumulation index (1) indicates progressive deterioration of the sediment quality.

The extent of pollution by heavy metals in the river Korotoa implies that the condition is much frightening to the biota and inhabitants in the vicinity of the river as well.

Vancouver, British Columbia, Nov 06, 2017 (Newsfile Corp via COMTEX) -- Millennial Lithium Corp.

(ML)(A3N2) (otcqb: MLNLF) ("Millennial" or the "Company") is pleased to announce that is has engaged Worley Parsons Chile S. (WP) to complete a Preliminary Economic Assessment (PEA) on its flagship Pastos Grandes Project in Salta, Argentina. Max Missiouk as Chief Financial Officer for the Company effective Nov. Worley Parsons is a leading global provider of professional services to the resource and energy sectors, and the complex processing industries.

Images will show the giant main passage and the superb formations seen throughout the cave.

In a country as densely populated as Britain, the chance of exploring boundless unknown regions seems remote, yet the underground remains one of the last great unexplored environments, and the subterranean wilderness of the deep air draws cavers in ever deeper and ever further.

This presentation will show a short history of the British teams investigation into the this truly amazing karst area.

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