GUWAHATI: The Centre is closely monitoring the peculiar exchange of colour of Siang river in Arunachal Pradesh from crystal colour to black with slag content, which has now spread downstream into Brahmaputra river in Assam.
The Siang river flows from southern Tibet in China as Yarlung Tsangpo and as Brahmaputra in Assam. The Centre is yet to establish the motive.
An legit source said that the Central Water Commission, which is responsible for monitoring water levels and high quality of all the rivers in the nation, would soon engage other departments, including ISRO, to find the solution to the black water.
"As of now we cannot come to any conclusion on cause for this unusual change. We don't know what the situation of the river is across the border (China) as we have no jurisdiction to monitor the river and its quality there. If necessary, India would have to take the help of the Chinese government," the source said.
"We are observing the black colour of Siang river right from its entry point in India at Geling in Upper Siang district on the international border," he added.
He said, "The change of colour has now been observed in the Brahmaputra river as well in the downstream reaches." The Siang, after becoming a member of Lohit, also from China, becomes the Brahmaputra in Assam.
In Dibrugarh town, the water of Brahmaputra has change into darkish. Dibrugarh is at a straight line distance of 77 km from Pasighat in East Siang district where the Siang's water is darkest. The CWC has also observed the exchange of colour as far as Tezpur and Guwahati at the downstream areas.
The source said that the CWC began monitoring the blackened Siang from November 18. "There was an earthquake in eastern Arunachal Pradesh on November 17 and initially we thought that there must have been landslides which might have blocked the Siang river. But the dark colour has remained the same and is still continuing. We can't conclusively say anything now," the source said.
The main points of the information of the water high quality of Siang is classed as it's an international river. "The government of India's next step will be based on the results of the tests of the water sample collected from various locations," the source said.
The Siang river flows from southern Tibet in China as Yarlung Tsangpo and as Brahmaputra in Assam. The Centre is yet to establish the motive.
An legit source said that the Central Water Commission, which is responsible for monitoring water levels and high quality of all the rivers in the nation, would soon engage other departments, including ISRO, to find the solution to the black water.
"As of now we cannot come to any conclusion on cause for this unusual change. We don't know what the situation of the river is across the border (China) as we have no jurisdiction to monitor the river and its quality there. If necessary, India would have to take the help of the Chinese government," the source said.
"We are observing the black colour of Siang river right from its entry point in India at Geling in Upper Siang district on the international border," he added.
He said, "The change of colour has now been observed in the Brahmaputra river as well in the downstream reaches." The Siang, after becoming a member of Lohit, also from China, becomes the Brahmaputra in Assam.
In Dibrugarh town, the water of Brahmaputra has change into darkish. Dibrugarh is at a straight line distance of 77 km from Pasighat in East Siang district where the Siang's water is darkest. The CWC has also observed the exchange of colour as far as Tezpur and Guwahati at the downstream areas.
The source said that the CWC began monitoring the blackened Siang from November 18. "There was an earthquake in eastern Arunachal Pradesh on November 17 and initially we thought that there must have been landslides which might have blocked the Siang river. But the dark colour has remained the same and is still continuing. We can't conclusively say anything now," the source said.
The main points of the information of the water high quality of Siang is classed as it's an international river. "The government of India's next step will be based on the results of the tests of the water sample collected from various locations," the source said.
CWC to engage with other departments to probe unusual change in Siang river's colour
![CWC to engage with other departments to probe unusual change in Siang river's colour]()
Reviewed by Kailash
on
November 30, 2017
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