The Saraswati kup water in Allahabad has EC- 2230 with K , NO3, PO4,Ganga & Yamuna EC- 470 -720 only. Is it a Saraswati Palaeochannel?
ON THE BASIS of only above data it is impossible to know the answer.
Supriya, your finding is very interesting. EC value 2230 micromhos/cm seems to be very high for river water, may indicate paleochannels/ deep water- rock interaction. But as Sudhir very correctly pointed out only on this basis any big conclusion can not be made. It is better to go for detailed chemical analysis preferably by ICP-MS and data must include rare earth elements along with as many as chemical constituents. Furthermore, Interact with chemical analysis data and land sets ( Remote sensing ) along with tracer techniques and other geomorphological investigations.
The Electrical conductivity above 2000 shows the very high contamination. You can check any industrial pollutants are mixing with aquifer or is there any seawater intrusion occurrence....
our paper effects of aluminum on wheat might be helpful published in 2003.
Acta Botanica Hungarica 45(3-4):315-321.
It is very difficult to come to conclusion on the basis of EC values about the Saraswati River. In general surface waters have less EC when compared to groundwater. We have to see the source of EC at that point, it may be industry or agricultural or water rock interaction.
The high EC value in sub-surface water indicates either high contamination from wastes or rock-water interaction resulting in high conductivity. One has to do an isotopic studies to find out if there is any significant difference in the character of water.
Your finding is very interesting and It is very difficult to give a reason with ur data. Possible scenarios are water rock interaction and also may be some effect from sea water contamination. If you have facilities pls use stable isotope technique then u can find the source of contamination
Dr. Deeptha, appreciated your remark. Stable isotope technique and water - rock interaction , may provide some interesting features.However, Sea water intrusion in particular case is rulled out.
The finding of totally different quality at Saraswati Kup within the distance of 200 meter from Ganga or Yamuna indicates a another source of water, which might be a burried channel or moribund river or some source which is quite different for Ganga or Yamuna rivers. The Saraswati Channel can be assetained by isotopic finger printings only.
Sir
As pointed out by my colleagues, it is true that EC can be effected by many factor, but the location of the Saraswati Kup well is hardly 200 meter from Sangam in between the Rivers Ganga & Yamuna. The impact of these rivers should be visible in the quality of Kup but it contains not only high EC but also other parameters in very high concn like, K, NO3, PO4 etc. At least the dilution should have taken place and the quality should have been in between Ganga / Yamuna. The well is totally protected in army campus and no channel of pollution from nearby army campus has also been observed, But it is not so, Why? appears a third water source?
Supriya, I wish to point out and suggest :
1. Collection of water sample is most important in this study. Water samples of Ganga and Yamuna must be collected from several location points. It is better if collect water sampler from bottom ( river floor ). Simultaneously collect sample from demarcated Saraswati also. Analyse these water samples by ICP - MS for as many as parameters, including rare earth elements ( REE ). Thus provide real picture of these three rivers. Isotopic analysis of these water sample may provide valuable information about the paleochanels.
2. Clssify the water type by Piper and stiff and others. Study the classification and find out the source point ( various softwares are already available ).
3. Use the EC /pH /TDS Logger . Logger probe must be fix at bottom of the each river and take observation at particular depth and depth and time interval. ( preferably automatic recorded system , indian make are widely available ).
4. Collect the soil/ Rock samples from bottom of these three rivers. Analyse sample by ICP-MS for as many as parameters. ( NGRI can be requested for this facility).
on the basis of these observations some useful result must come out which may help to clear the possibility of Saraswati river/ paleochannel in a very scientific way.
5. Remote sensing ( land sets ) study of these three pointed river location points, Provide useful information about the paleochannels ( NRSA, Hyderabad may be helpful for this study ).
Supriya appreciated your findings and for your interest, in such a valuable good work.
Three to five times conductivity increase/change at such a short span of distance seems to be unnatural. It may be nice to elaborate the adopted EC measurement procedure such as EC measured values with respect to measurement location, measurement time and measurement number of times of EC. In case, such a variation in EC is consistant then it would be nice to find the cause of increased EC. A reliable source of measurement for a span of time interval only could/would lead to any conclusion. Otherwise until than the topic may remain just good and interesting for indefinite discussion. Warm regards,
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