Credits to: Ground Report India April-2010-Edition
Hindus have always believed that water from India's Ganges River has extraordinary powers. The Indian emperor Akbar called it the "water of immortality" and always traveled with a supply. The British East India Co. used only Ganges water on its ships during the three-month journey back to England, because it stayed "sweet and fresh."
Indians have always claimed it prevents diseases, but are the claims wives' tales or do they have scientific substance?
In the fourth installment of a six-part series, independent producer Julian Crandall Hollick searched for the "mysterious X factor" that gives Ganges water its mythical reputation.
He starts his investigation looking for the water's special properties at the river's source in the Himalayas. There, wild plants, radioactive rocks, and unusually cold, fast-running water combine to form the river. But since 1854, almost all of the Ganges' water has been siphoned off for irrigation as it leaves the Himalayas.
Hollick speaks with DS Bhargava, a retired professor of hydrology, who has spent a lifetime performing experiments up and down Ganges in the plains of India. In most rivers, Bhargava says, organic material usually exhausts a river's available oxygen and starts putrefying. But in the Ganges, an unknown substance, or "X factor" that Indians refer to as a "disinfectant," acts on organic materials and bacteria and kills them. Bhargava says that the Ganges' self-purifying quality leads to oxygen levels 25 times higher than any other river in the world.
Hollick's search for a scientific explanation for the X factor leads him to a spiritual leader at an ashram and a biologist in Kanpur. But his best answer for the Ganges' mysterious substance comes from Jay Ramachandran, a molecular biologist and entrepreneur in Bangalore.
In a short science lesson, Ramachandran explains why the Ganges doesn't spread disease among the millions of Indians who bathe in it. But he can't explain why the river alone has this extraordinary ability to retain oxygen.
Although many small streams comprise the headwaters of the Ganges, the six longest headstreams and their five confluences are given both cultural and geographical emphasis (see the map showing the headwaters of the river). The Alaknanda river meets the Dhauliganga river at Vishnuprayag, the Nandakini river at Nandprayag, the Pindar river at Karnaprayag, the Mandakini river at Rudraprayag and finally the Bhagirathi river at Devprayag, to form the mainstem, the Ganges. The Bhagirathi is the source stream; it rises at the foot of Gangotri Glacier, at Gaumukh, at an elevation of 3,892 m (12,769 ft). The headwaters of the Alaknanda are formed by snowmelt from such peaks as Nanda Devi, Trisul, and Kamet.
After flowing 200 km through its narrow Himalayan valley, the Ganges debouches on the Gangetic Plain at the pilgrimage town of Haridwar. There, a dam diverts some of its waters into the Ganges Canal, which irrigates the Doab region of Uttar Pradesh. The Ganges, whose course has been roughly southwestern until this point, now begins to flow southeast through the plains of northern India.
Further, the river follows an 800 km curving course passing through the city of Kanpur before being joined from the southwest by the Yamuna at Allahabad. This point is known as the Sangam at Allahabad. Sangam is a sacred place in Hinduism. According to ancient Hindu texts, at one time a third river, the Sarasvati, met the other two rivers at this point.
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