STUDY ON TURQUOISE AND BRIGHT SKY-BLUE APPEARING FRESHWATER BODIES (PDF Download Available)

STUDY ON TURQUOISE AND BRIGHT SKY-BLUE APPEARING FRESHWATER BODIES (PDF Download Available)Water is very ​essential and a ​major component ​of all living ​creatures. Pure ​water is ​colourless, ​tasteless ​
and odourless,​ but is ​generally found ​in impure state.​ Water found in ​oceans, rivers, ​lakes and ponds ​
appear of ​different ​colour. ​Suspended and ​dissolved ​particles ​influence the ​colour of water.​ Freshwater ​
bodies ​sometime appear ​turquoise (blue-​green) and ​bright sky-blue ​and catches the ​attention of ​people. ​
Turquoise and ​bright sky-blue ​appearing ​freshwater ​bodies are ​found in ​different parts ​of the world in ​
different set ​of environmental ​conditions. For ​example, ​glacial-fed ​lakes also ​appear ​turquoise, ​crater ​
lakes also ​bears turquoise ​colour and ​calcium ​carbonate rich ​water bodies ​also appear ​turquoise. ​Recently,rivers ​polluted by ​anthropogenic ​activities are ​also seen to ​bear turquoise ​color ​appearance. The turquoise ​appearance of ​water bodies is ​mainly due to ​the scattering ​of light in the ​blue-green ​range of the spectrum ​by suspended ​particles ​present in the ​water. There is ​diversity in ​the causal ​factor(s) ​responsible for such coloration in ​different set ​of conditions, ​but turquoise ​freshwater ​bodies ​originating ​under similar conditions in ​different parts ​of the world ​have some ​common ​characteristics.​ Moreover, the ​information ​about ​turquoise ​appearing ​freshwater ​bodies in ​different parts ​of the world ​are present but ​are scattered ​into pieces. ​There is a ​great need felt ​for compilation ​of different ​turquoise ​appearing ​freshwater ​bodies in ​the world. In ​this paper, ​different ​turquoise ​appearing ​freshwater ​bodies ​throughout the ​world have been ​identified. ​The causal ​factor(s) ​responsible for ​such coloration ​is also ​discussed. ​Since, the ​turquoise ​appearing ​freshwater ​bodies ​originating in ​similar ​conditions in ​different parts ​of the world ​bears some ​common ​characteristics,​ so based on it,​ a categorisation ​of turquoise ​appearing ​freshwater ​bodies for the ​first time is ​proposed in ​this paper for ​a better ​understanding. ​The categorisation ​has been ​supported by examples.