Save lives from contaminated water

As per the eleventh five-year plan document of India (2007-12), there are about 2.17 lakh regions in the country with more than half affected with excess iron, followed by fluoride, salinity, nitrate and arsenic. Further, approximately, 10 million cases of diarrhea, more than 7.2 lakh typhoid cases and 1.5 lakh viral hepatitis cases occur every year a majority of which are contributed by unclean water supply and poor sanitation.

Early detection of chemical contamination in drinking water resources may save thousands of lives. Most of the detection methods for water contamination are confined to laboratory due to its time consuming measurement procedure and the use of bulky instruments such as spectrophotometer in colorimetric tests. Again most of the low cost paper strip based detection method only gives the indication of the presences of the contaminant but it is unable to quantify its exact amount.

The rural and remote locations of our region are not connected directly to proper water quality monitoring facility. People from these regions are at high risk of serious health hazards due to unavailability of local laboratory support to detect chemical contamination such as fluoride contamination in their drinking water sources. Water samples from these regions are usually sent to the central water quality monitoring laboratory and the process of estimating fluoride concentration is an in-efficient and time consuming process. To initiate any removal program one has to know the chemical contaminant present in the water sources in its exact amount. Even if the proper laboratory facility is available; it needs necessary expertise.

According to TRAI the total wireless subscribers in India is around 1034.25 million till April 2016 with 447.84 million from rural areas and the remaining 568.41 million from urban areas Now, the total population of India is estimated to be 1320 million till 2016; these digits signify that it is possible to find a phone in any remote location of our country.

Hi all, I am a research scholar from Applied Photonics and nano-photonics lab, Department of Physics, Tezpur University; Assam . Our research group has working on developing smartphone based sensing tools which may be beneficial to the society. I am from Assam and people from many parts of this state such as Karbi-anglong, Nagaon, Majuli etc  has suffering from serious health issues occurring from elevated amount of fluoride and arsenic in drinking water resources.
The above photograph is taken from the nearby Karbi-anglong district where fluorosis becomes a nightmare for the people living there. They don't have proper laboratory facility to detect chemical contaminants such as fluoride in their drinking water resources. To initiate any removal program it is must to know the presence of the chemical contaminant.

In our lab we are developing lab grade low cost, robust and field portable water quality monitoring kit to detect and quantify water contaminants such as Fluoride, turbidity and salinity. 

Using the same kit all the color based detection can be possible. We have developed simple and user friendly android platform based application for real time detection and analysis. We have incorporated the visual gesture indication in the application so that people without any proper scientific knowledge can easily handle the kit. Using the same application real time reporting and data sharing could be possible using the existing communication facility of the phone. But the problem is that to materialize the research and to take it to the people suffering from these problems we need fund. We have already applied for project grant from DST India which is pending till now. we have done all these things by our own research fellowship but we don't have enough fund to make the dream happened in reality. With few donations from your side you are not only helping me, you are helping the large number of peoples who are suffering from such water related problems.
Here I am giving a rough estimate for developing the kit for initial 5 localities (Here I have considered the initial prototyping which I have done in my research, the cost may significantly reduced in commercial manufacturing):
for your convenience the line diagram of the prototype is given below:

Tentative cost involvement in developing the sensors
S. No.   ItemQuantity Individual Price (Rupees)    Supplier and parts no.    Total amount             (Rupees)
1Smartphone having Light sensor 5Hope a phone will be available anywhere
2568 nm Light emitting diode517.79R.S. Components; stock no. 860-969288.95
3Android application
Free of cost
3USB-OTG cable555Ebay India275
4Plano-convex lens(Focal length 11 mm)101700 Edmund optics; Stock no. 32-47117000
5Ground glass diffuser53060Holmarc optics; Stock no. HO-DF-50S-3215300
6Fabrication of the sensor/materials5
CNC machining or 3D printing10000

for colorimetric detection of Fluoride15000

Total estimate57663.95

These things are in lab scale, it gives desired results. I have made the plastic cradle by hands. It can be optimized further both in hardware and software with advanced machining may be with a 3D printer,  which is not available here. People only need the plastic cradle and the reagents which we can supply free of cost to a locality because a phone is available everywhere. This type of Device may significantly help people from low economic and from resource poor regions. For example I have prepared a lab demo. I am extremely sorry for poor video editing.

I have developed the phone application which I am going to make free

I want to develop the same for Arsenic and Iron but the problem is that we don't have much funding. I have done these much by my research fellowship. To develop this as a low-cost kit I seriously need help. Please help me out.

Your suggestions may help me significantly in improving the cause:

mail me :

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15th October 2016
Initial prototyping....

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